Why Finite Element Analysis Matters for Safer and More Efficient Electric Vehicle Chassis Design

The rapid transition toward electric mobility is reshaping the global automotive industry. While considerable attention has been devoted to battery technologies, electric motors, and charging infrastructure, the structural design of electric vehicle (EV) chassis remains equally important. The chassis serves as the primary load-bearing framework that supports major vehicle components, influences driving stability, and contributes directly to occupant safety. Achieving an optimal balance between structural strength, lightweight construction, and manufacturing feasibility is therefore a central engineering challenge in modern EV development.

Computer-aided engineering tools, particularly Finite Element Analysis (FEA), have become indispensable for evaluating structural performance before physical prototypes are manufactured. By simulating stress distribution, deformation, strain, and safety factors under specified loading conditions, engineers can identify potential structural weaknesses while reducing development time and cost. The reviewed study investigates the structural behavior of an electric vehicle ladder-frame chassis made from alloy steel using finite element simulation. Rather than focusing solely on design creation, the research demonstrates how numerical analysis can support safer, more efficient, and environmentally sustainable vehicle development through evidence-based engineering decisions.

Bibliographic Information

Item	Information
Article Title	Revitalizing Vehicle Innovation: Exploring Electric Car Chassis Structures through Finite Element Analysis
Author	Hafidz Dwi Anggara
Affiliation	Department of Mechanical Engineering, Faculty of Engineering, Universitas Negeri Padang, Indonesia
Journal	Innovation in Engineering
Volume & Issue	Volume 1, Number 1
Publication Year	2024
Pages	50–59
DOI	https://doi.org/10.58712/ie.v1i1.6
Publisher	Researcher and Lecturer Society
License	Creative Commons Attribution 4.0 International (CC BY 4.0)

1. Research Background

The rapid growth of electric vehicles has intensified the need for improved structural engineering. As governments and manufacturers accelerate the transition toward low-emission transportation, electric vehicles require chassis structures that provide high strength while maintaining reasonable weight and manufacturing efficiency. The chassis forms the foundation that supports all major vehicle components and directly influences structural integrity, driving stability, and passenger safety.
Vehicle chassis design remains a critical engineering challenge. Although electric vehicle technologies have advanced significantly in areas such as batteries and propulsion systems, structural optimization continues to demand careful engineering analysis. Engineers must simultaneously satisfy multiple design objectives, including durability, rigidity, crashworthiness, manufacturability, and overall vehicle performance.
Finite Element Analysis has become an essential engineering tool. Modern vehicle development increasingly relies on computer-based simulation to predict structural behavior before prototype fabrication. Finite Element Analysis (FEA) enables engineers to estimate stress distribution, deformation, strain, and safety factors under various loading conditions, thereby reducing development costs while improving design reliability.
Previous studies have demonstrated the value of numerical simulation. Existing research has shown that computational structural analysis can effectively support vehicle design optimization by identifying high-stress regions, evaluating material performance, and improving structural safety without requiring extensive physical testing during early development stages.
The study addresses a practical engineering gap. Despite the widespread application of FEA in mechanical engineering, further investigation is needed to evaluate specific electric vehicle chassis configurations, materials, and loading conditions. In particular, the structural response of ladder-frame chassis designs manufactured from alloy steel requires detailed assessment to determine whether the design satisfies engineering safety requirements.
The research introduces a simulation-based chassis evaluation. Rather than proposing a completely new chassis architecture, the study focuses on designing and evaluating an electric vehicle ladder-frame chassis using SolidWorks simulation. The investigation integrates three-dimensional modeling with finite element analysis to assess stress distribution, displacement, strain, and safety factor under a static load of 5000 N.
The novelty lies in combining practical chassis design with engineering validation. The research demonstrates how computer-aided engineering can be applied to verify the structural feasibility of an electric vehicle chassis before fabrication. By integrating material properties, geometric modeling, mesh generation, and structural simulation within a single workflow, the study provides a practical example of simulation-driven engineering design for sustainable transportation development.

2. Research Objectives

To design a ladder-frame electric vehicle chassis using alloy steel material suitable for structural evaluation through computer-aided engineering techniques.
To investigate the structural performance of the proposed chassis under a static loading condition of 5000 N using Finite Element Analysis (FEA).
To determine the distribution of von Mises stress throughout the chassis structure and identify critical loading regions.
To evaluate structural displacement resulting from the applied mechanical load.
To analyze strain distribution across the chassis as an indicator of structural deformation.
To calculate the safety factor of the proposed chassis design and assess whether the structure satisfies acceptable engineering safety requirements.
To demonstrate the usefulness of finite element simulation as an engineering decision-support tool for electric vehicle chassis development before physical manufacturing.

3. Why This Research Matters

Supports safer electric vehicle development. Structural integrity is one of the most important considerations in vehicle engineering. Accurate simulation enables engineers to verify whether a chassis can safely withstand operational loads before manufacturing begins.
Reduces development cost and design time. Finite Element Analysis minimizes the need for repeated physical prototyping by allowing engineers to evaluate multiple design alternatives digitally, accelerating product development while reducing engineering expenses.
Advances digital engineering practices. The study demonstrates how computer-aided engineering tools such as SolidWorks Simulation can support evidence-based engineering decisions throughout the vehicle design process, reflecting the broader transition toward digital product development.
Contributes to sustainable transportation. Well-designed electric vehicle chassis improve structural efficiency and help support wider adoption of environmentally friendly transportation technologies capable of reducing greenhouse gas emissions associated with conventional vehicles.
Provides practical guidance for mechanical engineers. The presented workflow—from three-dimensional modeling and material selection to mesh generation and structural analysis—offers a useful reference for engineers involved in automotive design, mechanical simulation, and structural optimization.
Encourages simulation-driven engineering education. The research illustrates how engineering students and researchers can integrate CAD modeling with numerical simulation to evaluate structural performance using industry-standard engineering software before experimental implementation.
Supports future innovation in electric mobility. As electric vehicle technologies continue to evolve, simulation-based structural evaluation will remain essential for developing lighter, stronger, and safer vehicle platforms capable of meeting increasingly demanding engineering and sustainability requirements.

4. Research Methodology

Research Type
This study employed quantitative engineering research using a computer-aided engineering (CAE) approach. Rather than relying on experimental prototype testing, the research evaluated the structural performance of an electric vehicle chassis through numerical simulation based on the Finite Element Method (FEM). This simulation-driven methodology enables engineers to predict structural behavior efficiently during the early design stage while reducing development cost and time.
Chassis Design Concept
The investigated structure is a ladder-frame electric vehicle chassis, selected because of its relatively simple geometry, ease of manufacturing, and cost-effectiveness. The chassis was modeled with overall dimensions of approximately 5128 mm × 1800 mm. Although ladder-frame designs generally provide lower torsional stiffness than monocoque structures, they remain suitable for various utility and low-speed vehicle applications where manufacturing simplicity is advantageous.
Material Selection
The chassis was constructed virtually using alloy steel with a thickness of 3 mm. The material properties incorporated into the simulation included elastic modulus, Poisson's ratio, shear modulus, density, tensile strength, yield strength, thermal expansion coefficient, thermal conductivity, and specific heat. These parameters enabled realistic estimation of the structural response during numerical analysis.
CAD Modeling
A three-dimensional model of the electric vehicle chassis was developed using SolidWorks 2021. The CAD model represented the complete ladder-frame configuration and served as the basis for subsequent finite element simulation. Accurate geometric representation was essential for generating reliable stress and deformation predictions.
Finite Element Modeling
Structural evaluation was performed using the Finite Element Analysis (FEA) module integrated within SolidWorks. The finite element method divides the chassis into numerous small elements, enabling numerical approximation of stress and deformation under applied loading conditions. This computational approach provides detailed insight into structural behavior that would be difficult to obtain through analytical calculations alone.
Mesh Generation
A curvature-based solid mesh was generated to discretize the chassis geometry before simulation. The mesh consisted of approximately 388,942 nodes and 195,354 solid elements, with a minimum element size of approximately 14.40 mm. High mesh quality and the absence of distorted elements indicate that the numerical model was suitable for structural analysis and capable of producing stable simulation results.
Loading and Boundary Conditions
The structural performance of the chassis was evaluated under a static external load of 5000 N. Appropriate supports and constraints were assigned to represent operational loading conditions, allowing the simulation to calculate how the structure responds to mechanical forces acting on the vehicle frame.
Performance Parameters Evaluated
Four principal structural indicators were investigated throughout the simulation:
- Von Mises stress distribution.
- Total displacement.
- Equivalent strain distribution.
- Safety factor across the chassis structure.
These parameters collectively provide a comprehensive assessment of structural strength, stiffness, deformation characteristics, and overall mechanical safety.
Analysis Strategy
Simulation results were interpreted by identifying minimum and maximum values of stress, displacement, strain, and safety factor throughout the chassis. The obtained values were then compared with the material properties of alloy steel to determine whether the proposed design remained within acceptable structural limits under the specified loading condition.

5. Key Findings

1. The Proposed Chassis Successfully Withstood the Applied Mechanical Load

The finite element simulation indicates that the proposed alloy steel ladder-frame chassis remained structurally stable under the applied static load of 5000 N. The analysis demonstrates that the structural configuration was capable of carrying the specified loading condition without exceeding the material's yield strength, suggesting that the design satisfies its primary engineering objective.

This outcome illustrates the value of simulation-based structural evaluation during early-stage vehicle development. Instead of relying solely on physical testing, engineers can verify structural feasibility digitally, allowing design improvements to be implemented before fabrication begins.

2. Stress Distribution Remained Below the Material Yield Strength

The von Mises stress analysis produced values ranging from approximately 0.002 MPa to 167.549 MPa. Although localized stress concentrations were observed in several regions of the chassis, the maximum simulated stress remained substantially lower than the yield strength of the selected alloy steel material.

From an engineering perspective, this result indicates that the proposed chassis design maintains an adequate structural safety margin under the investigated loading condition. Identifying regions of relatively high stress also provides valuable information for future structural optimization or weight reduction efforts.

3. Structural Deformation Was Relatively Small

The displacement analysis showed a maximum deformation of approximately 1.812 mm, while several portions of the chassis experienced negligible movement. Such limited deformation suggests that the ladder-frame structure possesses sufficient stiffness to resist excessive deflection under the prescribed load.

Maintaining low displacement is important because excessive structural deformation can negatively influence vehicle handling, component alignment, ride quality, and long-term durability. The obtained results therefore support the structural suitability of the proposed chassis configuration.

4. Strain Distribution Demonstrated Elastic Structural Behavior

Equivalent strain values ranged from approximately 0.0000 to 0.0001, indicating that structural deformation remained within the elastic region of the material. The very small strain values suggest that the applied loading did not induce significant permanent deformation within the alloy steel chassis.

For mechanical engineers, strain analysis provides additional confirmation that the structure behaves predictably under service loading. Together with stress analysis, these findings strengthen confidence in the structural integrity of the proposed design.

5. Safety Factor Confirmed Structural Reliability

The simulation produced a minimum safety factor of approximately 2.327, with substantially higher values observed across many other regions of the chassis. A minimum safety factor greater than two generally indicates that the structure possesses sufficient reserve strength for the investigated loading scenario.

Rather than simply demonstrating that the chassis remains intact, the safety factor analysis provides quantitative evidence supporting engineering confidence in the structural design. Such information is essential when evaluating whether a design is appropriate for subsequent development and prototype manufacturing.

6. Finite Element Analysis Demonstrated Its Effectiveness as a Design Validation Tool

Beyond the numerical values themselves, the study highlights the effectiveness of Finite Element Analysis as a practical engineering decision-support tool. By integrating CAD modeling, material properties, mesh generation, and structural simulation within a single workflow, the researchers were able to evaluate multiple aspects of structural performance without constructing a physical prototype.

The findings reinforce the growing importance of digital engineering in modern vehicle development. Simulation-driven validation enables engineers to identify potential structural weaknesses, improve design efficiency, and reduce development risks before manufacturing, making finite element analysis an indispensable component of contemporary automotive engineering.

6. Scientific Contribution

Demonstrates the practical application of Finite Element Analysis (FEA) in electric vehicle chassis development. The study illustrates how numerical simulation can be effectively integrated into the engineering design process to evaluate structural performance before prototype fabrication, supporting evidence-based engineering decisions.
Provides a validated structural assessment of an alloy steel ladder-frame chassis. Through stress, displacement, strain, and safety factor analyses, the research confirms that the proposed chassis configuration satisfies structural requirements under the specified loading condition, contributing useful design knowledge for electric vehicle development.
Integrates CAD modeling with engineering simulation. The research establishes a systematic workflow that combines three-dimensional modeling, material characterization, mesh generation, and finite element simulation within a unified computer-aided engineering environment.
Strengthens engineering understanding of structural behavior. The reported simulation results provide insight into how an alloy steel electric vehicle chassis responds to external mechanical loading, enabling engineers to identify critical stress regions and evaluate structural performance quantitatively.
Supports simulation-driven product development. The study reinforces the growing role of digital engineering in automotive design by demonstrating that virtual structural validation can reduce reliance on repeated physical prototyping during the early stages of product development.
Provides an educational reference for engineering simulation. Beyond its practical findings, the article serves as an accessible example of applying Finite Element Analysis in mechanical engineering education, particularly for students and researchers learning computer-aided structural analysis.

7. Industrial Implications

Supports more efficient electric vehicle development. Simulation-based structural validation enables automotive manufacturers to evaluate chassis performance before physical fabrication, reducing product development time and minimizing costly design revisions.
Improves engineering design decisions. Detailed stress and deformation analyses help engineers identify structurally critical regions, allowing targeted reinforcement or material optimization without unnecessarily increasing vehicle weight.
Reduces prototype development costs. Virtual testing through Finite Element Analysis decreases dependence on multiple physical prototypes, contributing to lower research and development expenditure while accelerating product innovation.
Supports digital engineering and Industry 4.0. The study demonstrates the integration of computer-aided design (CAD) and computer-aided engineering (CAE), reflecting the increasing adoption of digital product development workflows throughout the automotive manufacturing sector.
Enhances product quality and structural reliability. Early identification of stress concentration, displacement, and safety factor enables manufacturers to improve structural robustness before production, potentially increasing vehicle durability and operational safety.
Provides a foundation for lightweight vehicle optimization. Although the present study focuses on structural validation, the simulation methodology can support future efforts to optimize chassis geometry and material utilization while maintaining adequate safety margins.
Supports sustainable manufacturing. More efficient design verification contributes to reduced material waste, shorter development cycles, and improved engineering efficiency, aligning with broader sustainability objectives in modern automotive manufacturing.
Offers transferable engineering methodology. The presented simulation workflow may also be applied to other structural engineering applications, including commercial vehicles, agricultural machinery, industrial equipment, lightweight transportation systems, and mechanical frame design.

8. Research Limitations

The structural evaluation was conducted entirely through numerical simulation. Although Finite Element Analysis provides reliable engineering predictions, experimental validation using a physical prototype would further strengthen confidence in the reported structural performance.
The analysis considered a static loading condition of 5000 N. Actual vehicle operation involves dynamic loading caused by acceleration, braking, cornering, road irregularities, and vibration, which were beyond the scope of the present study.
Only one chassis configuration—a ladder-frame design manufactured from alloy steel—was investigated. Comparative evaluation of alternative chassis architectures or structural materials was not included.
The study focused primarily on structural strength and safety indicators. Other important engineering aspects, including crashworthiness, fatigue life, durability, torsional stiffness, and vehicle dynamics, were not examined.
Material behavior was evaluated under assumed engineering properties within the simulation environment. Manufacturing imperfections, welding effects, residual stresses, and material variability were not explicitly considered.
Environmental operating conditions such as temperature variation, corrosion, repeated loading cycles, and long-term service degradation were outside the objectives of this investigation.

9. Future Research Opportunities

Compare the structural performance of alloy steel with alternative lightweight materials such as aluminum alloys, advanced high-strength steels, magnesium alloys, or composite materials.
Investigate dynamic loading scenarios that simulate real driving conditions, including acceleration, braking, cornering, and uneven road surfaces.
Conduct crashworthiness simulations to evaluate occupant protection and energy absorption characteristics during collision events.
Perform fatigue and durability analyses to estimate long-term structural performance under repeated loading cycles.
Optimize chassis geometry using topology optimization or generative design techniques to achieve improved strength-to-weight ratios.
Validate the numerical simulation through laboratory experiments and full-scale prototype testing to compare predicted and measured structural responses.
Integrate multi-objective optimization approaches that simultaneously consider structural strength, manufacturing cost, vehicle mass, and sustainability.
Investigate the influence of different joining methods, including welding, bolted joints, and adhesive bonding, on overall chassis performance.
Study the interaction between chassis structural behavior and complete vehicle dynamics, including suspension systems, battery placement, and load distribution.
Develop digital twin frameworks that combine finite element simulation with real-time sensor data for predictive structural monitoring throughout the vehicle life cycle.

10. Potential for Public Policy Citation (Overton)

This article demonstrates moderate potential for citation within public policy documents because it addresses engineering methods that support the development of safer and more sustainable electric vehicles. Governments worldwide are actively promoting electric mobility as part of national decarbonization strategies, making research on vehicle structural design relevant to broader transportation innovation initiatives.

The study could contribute to technical background documents, electric vehicle development roadmaps, research and innovation strategies, engineering education initiatives, and sustainable transportation programs that encourage the adoption of computer-aided engineering in product development. Its emphasis on digital simulation aligns with current industrial digitalization policies and advanced manufacturing strategies.

However, the article is less likely to be cited directly in engineering regulations or vehicle safety standards because it evaluates a single chassis design under a specific loading condition rather than proposing new testing procedures, certification criteria, or regulatory frameworks. Broader policy influence would benefit from future studies involving experimental validation, multiple vehicle platforms, and industrial-scale implementation.

11. Who Should Read This Paper?

Mechanical engineering researchers.
Automotive engineering researchers.
Finite Element Analysis (FEA) specialists.
Electric vehicle designers.
Structural design engineers.
Computer-aided engineering (CAE) practitioners.
Graduate students in mechanical and automotive engineering.
University educators teaching engineering design and simulation.
Automotive manufacturers involved in electric vehicle development.
Research and development engineers.
Industrial engineers working in digital product development.
Government agencies supporting electric mobility research and innovation.

12. Final Thoughts

This article presents a practical application of Finite Element Analysis for evaluating the structural performance of an electric vehicle chassis during the early stages of engineering design. Rather than introducing a fundamentally new analytical technique, the research demonstrates how established computer-aided engineering methods can be systematically employed to support safer and more efficient vehicle development. The integration of three-dimensional modeling, material characterization, mesh generation, and structural simulation provides a clear example of simulation-driven engineering practice.

One of the study's principal strengths is its comprehensive structural assessment using multiple engineering indicators, including von Mises stress, displacement, strain, and safety factor. These complementary analyses provide a well-rounded evaluation of the proposed chassis and offer useful evidence regarding its structural feasibility under the investigated loading condition. The research also highlights the practical value of digital simulation as a cost-effective alternative to extensive physical prototyping during preliminary design.

Although the investigation is limited to static structural analysis of a single alloy steel ladder-frame configuration, the presented methodology has broader relevance for modern automotive engineering. Future studies incorporating lightweight materials, dynamic loading conditions, crash simulations, and experimental validation would further expand its engineering significance.

Overall, this article represents a valuable contribution to simulation-based vehicle engineering. It illustrates how finite element analysis can strengthen engineering decision-making while supporting the ongoing transition toward safer, more efficient, and more sustainable electric vehicle technologies. For researchers, practicing engineers, and engineering students alike, the study offers a practical reference for integrating computational structural analysis into contemporary automotive design workflows.

Suggested Citation

UNP–Teknomekanik Style

Anggara, H. D. (2024). Revitalizing vehicle innovation: Exploring electric car chassis structures through finite element analysis. Innovation in Engineering, 1(1), 50–59. https://doi.org/10.58712/ie.v1i1.6

APA (7th Edition)

Anggara, H. D. (2024). Revitalizing vehicle innovation: Exploring electric car chassis structures through finite element analysis. Innovation in Engineering, 1(1), 50–59. https://doi.org/10.58712/ie.v1i1.6

IEEE Style

H. D. Anggara, "Revitalizing vehicle innovation: Exploring electric car chassis structures through finite element analysis," Innovation in Engineering, vol. 1, no. 1, pp. 50–59, 2024. https://doi.org/10.58712/ie.v1i1.6

Harvard Style

Anggara, H.D., 2024. Revitalizing vehicle innovation: Exploring electric car chassis structures through finite element analysis. Innovation in Engineering, 1(1), pp.50–59. Available at: https://doi.org/10.58712/ie.v1i1.6

Vancouver Style

Anggara HD. Revitalizing vehicle innovation: Exploring electric car chassis structures through finite element analysis. Innovation in Engineering. 2024;1(1):50–59. Available from: https://doi.org/10.58712/ie.v1i1.6

Chicago (Author–Date)

Anggara, Hafidz Dwi. 2024. "Revitalizing Vehicle Innovation: Exploring Electric Car Chassis Structures through Finite Element Analysis." Innovation in Engineering 1 (1): 50–59. https://doi.org/10.58712/ie.v1i1.6

MLA (9th Edition)

Anggara, Hafidz Dwi. "Revitalizing Vehicle Innovation: Exploring Electric Car Chassis Structures through Finite Element Analysis." Innovation in Engineering, vol. 1, no. 1, 2024, pp. 50–59. https://doi.org/10.58712/ie.v1i1.6

Editorial Note

Editorial Note: This blog post is an independent scholarly review intended for educational and scientific communication purposes. It summarizes and discusses the published article in the author's own words while providing full attribution to the original publication, consistent with the principles of the Creative Commons Attribution 4.0 International (CC BY 4.0) license. The review has been prepared to facilitate broader understanding of the reported research without reproducing the original text and should not be considered a substitute for reading the complete article.

SEO Information

SEO Meta Description

A comprehensive scholarly review of research on electric vehicle chassis design using Finite Element Analysis (FEA). Explore the methodology, key findings, engineering contributions, industrial implications, and future research opportunities in simulation-driven electric vehicle structural engineering.

SEO Keywords

Electric Vehicle Chassis, Electric Car Chassis, Finite Element Analysis, FEA, Structural Analysis, Vehicle Frame Design, Ladder Frame Chassis, Alloy Steel Chassis, Automotive Engineering, Mechanical Engineering, SolidWorks Simulation, Computer-Aided Engineering, CAE, Structural Optimization, Vehicle Safety, Digital Engineering, Engineering Simulation, Electric Mobility, Sustainable Transportation, Engineering Research Insights

Recommended URL Slug

electric-vehicle-chassis-finite-element-analysis-review

Engineering Research Insights

Search This Blog