This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
A Design-Analysis Method for the Frontal-Crush Strength of Body Structures
Annotation ability available
Sector:
Language:
English
Abstract
A simplified design-analysis method is developed for estimating the ultimate load-carrying capacity and the associated collapse mechanism of a body structure subjected to a frontal crush load. The analysis is based on the principles of limit analysis; the computation scheme consists of repeated stepwise analyses for each incremental load, and repeated searching for the collapse mechanism which requires the least load (the collapse load). Very good agreement was obtained between analysis and crush-test results of production body structures.
This design analysis method provides a simple and direct means for design engineers to evaluate the effect of design variations on the body crush strength.
Authors
Topic
Citation
Chang, D., "A Design-Analysis Method for the Frontal-Crush Strength of Body Structures," SAE Technical Paper 770593, 1977, https://doi.org/10.4271/770593.Also In
References
- Chang D. C. Kan Y. R. “Elastoplastic Analysis of an Automobile Body Structure,” “Computational Methods in Nonlinear Mechanics,” Proceedings of the International Conference on Computational Methods in Nonlinear Mechanics Austin, Texas September 1975 695 704
- Kamal M. M. “Analysis and Simulation of Vehicle to Barrier Impact,” SAE Transaction 79 1970
- Symonds P. S. “Limit Analysis,” “Handbook of Engineering Mechanics,” Flügge W. McGraw-Hill 1962 49 1
- Beedle L. S. “Plastic Design of Steel Frames,” John Wiley & Sons New York City 1958
- Yamada Y. Yoshimura N. Sukurai T. “Plastic Stress-Strain Matrix and Its Application for the Solution of Elastic-Plastic Problems by Finite Element Method,” International Journal of Mechanical Science 10 1968 343 354
- Morris G. A. Fenves S. J. “Elastic-Plastic Analysis of Framed Structures,” J. of Structural Divisions, ASCE, ST5 931 946 May 1970
- Chang D. C. “Effects of Flexible Connections on Body Structural Response,” SAE Transaction 1974 233 244 SAE Paper No. 740041
- Livesley R. K. “Matrix Method of Structural Analysis,” Pergamon Press 1964