Individual Stiffness of 3D Space Frame Thin Walled Structural Joint Considering Local Buckling Effect

Abstract:

Thin walled beams are widely used to build vehicle structure. Thin walled structure offers high stiffness-to-weight ratio to the vehicle for better handling and fuel consumption. Despite these advantages, thin walled structures will expose to the buckling and joint flexibility effects. For a vehicle structure, 3D space frame is used a lot in designing vehicle structure. However, the stiffness of thin joint is difficult to predict accurately by numerical and analytical model due to buckling effect and the complexity of the joint. The essence of this research work is to determine individual stiffness of 3D space frame members using reduction member method. By knowing the individual stiffness of all members, the stiffness of 3D space frame can be predicted easily. This study will help design engineer to optimize vehicle structure with more efficient way rather than trial and error approach. As a case study, structure around bulkhead area which consists of A pillar, sidesill and cross member will be analyzed.

• Periodical: Applied Mechanics and Materials (Volume 554)
• Pages: 411-415
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.554.411
• Online since: June 2014
• Authors: Mohd Shukri Yob*, Shuhaimi Mansor, Razali Sulaiman
• Keywords: 3D Space Frame, Finite Element, Joint Modelling, Thin Walled Structure

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