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Dynamic response of elastic-plastic structures

Grant number: 98/02856-8
Support Opportunities:Regular Research Grants
Duration: July 01, 1998 - March 31, 1999
Field of knowledge:Engineering - Mechanical Engineering - Mechanics of Solids
Principal Investigator:Marcílio Alves
Grantee:Marcílio Alves
Host Institution: Escola Politécnica (EP). Universidade de São Paulo (USP). São Paulo , SP, Brazil


The dynamic response of elastic-plastic structures will be studied using different material constitutive models which take into account material strain hardening and strain-rate hardening. A comparison will be drawn between the structural responses of these more sophisticated models and the ones predicted by rigid, perfectly plastic material law. This will clarify the influence of various material parameters on the dynamic response of structures, helping to establish some limits of validity for the rigid, perfectly plastic analysis. Geometrical and material nonlinearities will be taken into account. The proposed study will be carried out by numerical simulations of beams under impact loading. (AU)

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