An FEA-Based Concept Evaluation Tool For Early Vehicle Body-in-White Development

dc.contributor.authorChen, Shi
dc.contributor.authorZhou, Ziyang
dc.contributor.departmentChalmers tekniska högskola / Institutionen för mekanik och maritima vetenskapersv
dc.contributor.departmentChalmers University of Technology / Department of Mechanics and Maritime Sciencesen
dc.contributor.examinerBrouzoulis, Jim
dc.contributor.supervisorShetty, Sandeep
dc.contributor.supervisorElmered, Jonas
dc.date.accessioned2025-07-07T06:22:20Z
dc.date.issued2025
dc.date.submitted
dc.description.abstractTraditional crash simulation approaches are typically time-consuming and require highly detailed vehicle models, which are often unavailable during the early stages of product development. To address this limitation, Volvo Cars Corporation (VCC) employs an internal concept evaluation tool that allows designers to perform preliminary structural analyzes and ensure designs meet subsystem-level requirements at an early phase. This thesis focuses on the further development of this concept evaluation tool by addressing its existing drawbacks, thereby enhancing its versatility, efficiency, and accuracy to better support early-stage design. By pairing Python-driven automation with LS-DYNA, the proposed framework transforms repetitive routine into a streamlined, standardized workflow. Scripts regenerate meshes, reapply boundary conditions, and relaunch the simulation the moment a design variable is set. The developed system framework uses the threepoint bending scenario, identified as one of the most critical load cases in vehicle structural assessments, as a representative example to build an automated preprocessing module. In addition, an automated error handling layer was integrated into the framework. It effectively intercepts issues such as problematic meshes, incorrect coordinate systems, or solver warnings early in the process, thereby preventing contamination of results. Due to automation, engineers can conveniently preset cross-sectional parameters such as dimensions, materials, boundary conditions, and other essential inputs. Even under rapid development cycles, all required parameters can be applied correctly and consistently. Finally, all benefits mentioned above are integrated into a unified graphical interface. It is intuitive enough for design engineers to guide themselves through all steps of the simulation setup, paying attention to the most crucial aspects while minimizing exposure to non-essential components. The framework transforms previously manual processes into automated workflow and background computations, enabling faster and more accurate numerical results.
dc.identifier.coursecodeMMSX30
dc.identifier.urihttp://hdl.handle.net/20.500.12380/309998
dc.language.isoeng
dc.setspec.uppsokTechnology
dc.subjectBody-in-White
dc.subjectFinite Element Method
dc.subjectLS-DYNA
dc.subjectPython
dc.subjectCAE
dc.titleAn FEA-Based Concept Evaluation Tool For Early Vehicle Body-in-White Development
dc.type.degreeExamensarbete för masterexamensv
dc.type.degreeMaster's Thesisen
dc.type.uppsokH
local.programmeMobility engineering (MPMOB), MSc

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