DETERMINING MATERIAL CONSTITUTIVE PARAMETERS ON STEEL SHEETS | ||
| The International Conference on Applied Mechanics and Mechanical Engineering | ||
| Article 73, Volume 16, 16th International Conference on Applied Mechanics and Mechanical Engineering., May 2014, Pages 1-15 PDF (2.45 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/amme.2014.35747 | ||
| Authors | ||
| M. A.G. Calle1; M. Alves2 | ||
| 1Dr. Eng., Department of Mechatronics and Mechanical Systems, Polytechnic School of the University of Sao Paulo, Sao Paulo, Brazil. | ||
| 2Professor Dr. Eng., Department of Mechatronics and Mechanical Systems, Polytechnic School of the University of Sao Paulo, Sao Paulo, Brazil. | ||
| Abstract | ||
| ABSTRACT Finite element analysis is extensively employed to predict the structural response of mechanical components so reducing costs of experimental programs. However, among other aspects, the accuracy of the input material parameters in the finite element modeling strongly determines the simulation accuracy. The aim of this study is to evaluate the material constitutive parameters, considering an elasto plastic material model with strain rate sensitivity and failure and by using an inverse methodology. The evaluated material was a mild steel sheet used in scale models of naval structures. Quasi static and dynamic tests were performed and the so obtained material parameters were corroborated through numerical modelings of notched and shear specimens tests. Finally, a discussion about the evaluation of strain rate sensitivity model and failure criteria parameters is also presented. | ||
| Keywords | ||
| Material characterization; strain rate sensitivity; Failure; steel sheet | ||
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