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Quicker Process to Consider Strain Hardening for Crash Analysis Using HYCRASH

As one of the important issues in correlation of crash analysis, we know that the press-forming effect has large influence for the result of the analysis. Some tries and studies were carried out to assume the forming result to the crash analysis. However these actions haven’t spread to the actual product development because of some difficulties. We mark the Inverse Solver to solve this issue and have developed the new solver HYCRASH, which can calculate the plastic strain and thickness distribution from the final shape of the product. We would like to represent two things in this study. First, the hardening effect plays an important role in the crash energy absorption. Second, HYCRASH can consider this correlation factor much easier and faster than the usual press simulation technique.

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