سال انتشار: ۱۳۸۴

محل انتشار: سیزدهمین کنفرانس سالانه مهندسی مکانیک

تعداد صفحات: ۸

نویسنده(ها):

Hasanpour – PhD Candidate Mechanical Engineering Department Isfahan University of Technology, Isfahan, Iran
Ziaei-Rad – Assistant Professor Mechanical Engineering Department Isfahan University of Technology, Isfahan, Iran
S –

چکیده:

Indentation test of a hemisphere to a foam block has been simulated with ABAQUS/Explicit and the numerical results have been compared with the experimental ones. Both volumetric and isotropic hardening was used for simulation. Relatively good agreement was achieved between isotropic hardening model and the experimental results. However, the model should be modified in order to take into account elastic recession
during the unloading phase. In contrast, volumetric hardening model predict that the foam block tear down in early stage of impact. A phenomenon which is neither observed nor reported in real test results.