Natural Element Analysis on Micro-cracking Behavior of Brittle Solids

취성 재료의 마이크로 크랙킹 거동에 관한 자연요소해석

  • 강성수 (전주대학교 기계자동차공학과)
  • Published : 2006.09.30

Abstract

Fracture behavior of brittle solids is closely related to microcracking. A meso-scale analysis method using the natural element method is proposed for the analysis of brittle microcracking solids. The microcracking is assumed to occur along Voronoi edges in the Voronoi diagram generated using the nodal points as the generators. The mechanical effect of microcracks is considered by controlling the material constants in the neighborhood of the microcracks. The meso-analysis method is applied to the simulation of the microcracking behaviors of brittle solids subjected to tensile macrostress. The method is also applied to the analysis of the propagation of a macrocrack accompanied by the coalescence with microcracks formed near the macrocrack-tip.

Keywords

References

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