X-FEM simulation for two-unequal-collinear cracks in 2-D finite piezoelectric specimen
Source abstract
Abstract
A study for two-unequal-collinear cracks in a 2-D finite piezoelectric specimen is carried out using a new set of six crack-tip enrichment functions proposed here for piezoelectric media in the X-FEM framework. The intensity factors and energy release rate are calculated using interaction integral in conjugation with the near tip behavior given by the Stroh formalism. Effect of finite size of the specimen is analyzed with respect to offset distances of the cracks from the specimen boundaries. ERR variations are investigated with respect to inter- crack space, crack lengths and electrical/mechanical loadings. Hence, two-unequal-collinear cracks in an infinite domain problem is simulated, analyzed and validated using X-FEM. Further, ERR at the crack tips for the asymmetric case of two collinear equal and unequal cracks, is also computed. It is concluded through this investigation that the proposed enrichment functions could be used to handle the problems of fracture mechanics in 2-D piezoelectric media within a good accuracy.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Numerical methods in engineering · Fatigue and fracture mechanics · Ultrasonics and Acoustic Wave Propagation
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (32)
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