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NUMERICAL AND EXPERIMENTAL STUDY OF FAILURE IN STEEL BEAMS UNDER IMPACT CONDITIONS

Morales, E. D.; Yoneda, A. Y.; Driemeier, L.; Celeghini, R.; Alves, M.;

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The Finite Element Method is a numerical analysis technique that has been extensively used in industry, and one specific area of development is the study of impact simulation and assessment of energy absorption capability of materials. However, the energy absorption capability is directly dependent on material ductility, so that in order to correctly predict the onset of failure it is necessary to have accurate failure criteria. The objective of this work is to study the applicability of different failure criteria available in commercial finite element codes, in the simulation of stainless steel beams under impact. Initially, material characterization was done through several experimental tests which involve tensile tests and Hopkinson Bar tests. Next, impact tests were made with clamped beams. A high speed camera was used to record the experiments, and electronic devices were built in order to synchronize experimental data with the high speed image acquisition system. All experimental tests were simulated by using Finite Element Method and simulation results were compared to the experimental ones in order to verify the accuracy of failure criteria employed.

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Palavras-chave: Impact, Failure Criteria, Numerical Simulation, Material Characterization,

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DOI: 10.5151/meceng-wccm2012-19366

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Como citar:

Morales, E. D.; Yoneda, A. Y.; Driemeier, L.; Celeghini, R.; Alves, M.; "NUMERICAL AND EXPERIMENTAL STUDY OF FAILURE IN STEEL BEAMS UNDER IMPACT CONDITIONS", p. 3402-3421 . In: In Proceedings of the 10th World Congress on Computational Mechanics [= Blucher Mechanical Engineering Proceedings, v. 1, n. 1]. São Paulo: Blucher, 2014.
ISSN 2358-0828, DOI 10.5151/meceng-wccm2012-19366

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