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This paper introduces through the Ansys parametric design language (APDL) to establish finite element model containing surface semielliptical crack expansion of power station heat exchange tube. The type of finite element is used in this program is isoparametric degradation singular element, whice simulates crack stress singularities. And the crack front is token discrete. Based on this kind of finite...
Pipe plays an important role in the petrochemical industry. Developing pipe testing technique can avoid or decrease accidents and is an important guarantee for the safety service of pipe. In this paper, a method is presented to identify crack location and size, which is based on the finite element method (FEM) and model modification. Pipe structure is dispersed into a series of nested thin-walled...
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