Nonlinear analysis and development of bumper structure of vehicle with a coupled numerical and physical tests

摘要

Nonlinear analysis and development of bumper structure of vehicle with a coupled numerical and physical tests. A complete approach for the design of car bumpers loaded by small impacts is presented. It is based on nonlinear explicit dynamic finite element analysis and an experimental procedure to define behaviour laws. This approach is validated by several realistic tests on complex structures under low velocity or quasi-static loading, taking into account geometrical, contact and behaviour nonlinearities.