Finite Element Modeling of Elastic-Plastic Crack Growth PDF Download

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Finite Element Modeling of Elastic-Plastic Crack Growth

Finite Element Modeling of Elastic-Plastic Crack Growth PDF Author: F. T. C. Loo
Publisher:
ISBN:
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Languages : en
Pages : 45

Book Description
Numerical methods for the analysis of the elastic-plastic fracture problem using a special finite element technique are presented. A brief description of some concepts in elastic-plastic fracture mechanics and of the finite element method is followed by the formulation procedure of the stiffness matrix using eight-noded quadrilateral isoparametric elements. After a terse discussion of the initial stress method, the procedure of computation is extended in the analysis by using an incremental load process. The size and the shape of the plastic zone of a center crack specimen is investigated. The problem of crack growth is also studied using the moving crack tip element procedure. Results are presented in graphical form. It was found that the moving finite element technique can be modified to solve the crack branching problems.
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