Numerical modelling of spontaneous crack generation in brittle materials using the particle simulation method
Numerical modelling of spontaneous crack generation in brittle materials using the particle simulation method
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DOI：
10.1108/02644400610671144
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发表时间：
2006-07
影响因子：
1.6
通讯作者：
Chong-bin Zhao;T. Nishiyama;A. Murakami
中科院分区：
文献类型：
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作者：
Chong-bin Zhao;T. Nishiyama;A. Murakami
目的-本文的主要目的是提出并使用粒子模拟方法来明确地模拟脆性材料中的自发裂纹萌生现象，并将粒子模拟结果与实验室规模的实验结果进行比较。脆性材料被模拟为颗粒的集合体，从而可以在微观尺度上直接考虑颗粒间和颗粒内裂纹萌生的微观机制。已进行了实验室试验，使用石膏样品模型，以验证粒子模拟方法，明确模拟自发裂纹萌生phenomenon.Findings -本文发现，在模拟宏观滑动面沿着或周围的块和它的基础之间的接触面，无论是实验室试验和粒子模拟产生了一致的结果。这表明粒子模拟方法是可行的。
Purpose – The main purpose of this paper is to present and use the particle simulation method to explicitly simulate the spontaneous crack initiation phenomenon in brittle materials, and to compare the particle simulation results with experimental ones on the laboratory scale.Design/methodology/approach – Using the particle simulation method, the brittle material is simulated as an assembly of particles so that the microscopic mechanism of inter‐ and intra‐particle crack initiation can be straightforwardly considered on the microscopic scale. A laboratory test has been conducted using a gypsum sample model to validate the particle simulation method for explicitly simulating the spontaneous crack initiation phenomenon.Findings – The paper finds that in terms of simulating the macroscopic sliding surface along or around the contact plane between a block and its foundation, both the laboratory test and the particle simulation have produced consistent results. This indicated that the particle simulation metho...