Modelos de falha em análise numérica de estrutura veicular submetida a impacto de baixa velocidade.

Content Provider	Semantic Scholar
Author	Bugelli, Eduardo Barjud
Copyright Year	2010
Abstract	The aim of the present work is an assessment of several fracture models through experiments and numerical simulations. Tensile tests with notched and unnotched specimens were carried out to provide the material characterization in a wide range of stress triaxiality. The calibration of the parameters required by the fracture models was enabled by the parallel numerical simulation of the tensile tests, providing information on the stress and strain components at the failure locus. The constant equivalent strain criterion, the Johnson-Cook failure model and the maximum shear stress failure criterion were applied in a bumper beam impact case study. Several low speed impact tests were carried out in order to result in the component's rupture. Numerical simulation of the experiments was performed using commercial finite element code LS-Dyna. Good correlation of experiments and numerical simulations was achieved when considering this particular low speed case study.
File Format	PDF HTM / HTML
DOI	10.11606/D.3.2010.tde-13082010-165931
Alternate Webpage(s)	https://teses.usp.br/teses/disponiveis/3/3151/tde-13082010-165931/publico/Dissertacao_Eduardo_Barjud_Bugelli.pdf
Alternate Webpage(s)	https://doi.org/10.11606/D.3.2010.tde-13082010-165931
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article