Example1: S frame collapse analysis : JSOL CORPORATION

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Stamping-Crash Coupled Analysis

Example1: S frame collapse analysis

This experiment was conducted by Working group of structure and strength, Society of Automotive Engineers of Japan. This shows force-stroke behaviour under the prescribed displacement.
We have compared the test result and analysis result. In which virgin material property and the one with work hardening, that HYCRASH calculates.
It shows much better correlation between the test and analysis, if you incorporate the effect of forming, using HYCRASH

Fig Sframe collapse

Fig The residual strain(left) and thickness distribution(right) calculated by HYCRASH

Fig Sframe collapse force-stroke

Table Sframe collapse peak force

	Peak force(kN)	Difference to test
Test	27.7	-
Virgin material	24.1	13%
With HYCRASH	26.5	4%

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