Impact analysis methodology for elastic systems using the finite element method and explicit time integration. / Metodologia para a análise de impacto em sistemas elásticos usando-se o método dos elementos finitos e a integração explícita no tempo.

AUTOR(ES)

Alexandre Tácito Malavolta

DATA DE PUBLICAÇÃO

2003

RESUMO

Impact between solid bodies is present in many areas of engineering. Relevant examples of this sort of problem can be found in machine element design, transport systems such as containers for nuclear material, pipes in chemical plants, vehicles and many others structures that should comply with safety codes issued by govern agencies. In the majority of these cases, the knowledge of the stresses due to the impact between the bodies is fundamental to avoid failures on the designed structures, to predict undesired damages, and to decrease safety factors. Therefore, in this work a design methodology for linear mechanical systems submitted to impact is proposed. It is based on the surface of maximum stress which represents different crash situations for a given elastic model. The Finite Element Method with the explicit time integration algorithm is used to solve the associated dynamic problem. Examples are presented such as a bracket and a shaft.

ASSUNTO(S)

integração explícita no tempo método dos elementos finitos impacto finite element method explicit time integration impact

Documentos Relacionados

• Análise de impacto em vigas usando-se o método de integração explícita no tempo.
• Elastic nonlinear geometric analysis with positional finite element method
• Métodos locais de integração explícito e implícito aplicados ao método de elementos finitos de alta ordem
• Umidade do solo no semiárido pernambucano usando-se reflectometria no domínio do tempo (TDR)
• Estudo de impacto usando elementos finitos e análise não linear.