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arXiv 2402.04261cond-mat.softcond-mat.other
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硬质和软质夹杂物对裂纹前沿的钉扎:一项相场研究

Pinning of crack fronts by hard and soft inclusions: a phase field study

Hervé Henry

AI总结:

通过三维相场模拟,研究了弹性模量异质性材料中硬质和软质夹杂物对裂纹前沿的钉扎效应,揭示了不同夹杂物导致裂纹停滞或减速的机制。

摘要:

通过对具有弹性模量异质性的材料中裂纹扩展进行三维数值模拟,研究表明,简单夹杂物的存在可以显著影响裂纹的扩展。软质和硬质夹杂物的存在都可能导致裂纹前沿的停滞。本文描述了导致裂纹停滞的机制,并表明这些机制取决于夹杂物的性质。在夹杂物的存在导致裂纹减速的情况下,情况也是如此。

英文摘要:

Through tridimensonal numerical simulations of crack propagating in material with an elastic moduli heterogeneity it is shown that the presence of a simple inclusion can affect dramatically the propagation of the crack. Both the presence of soft and hard inclusions can lead to the arrest of a crack front. Here the mechanism leading to the arrest of the crack are described and shown to depend on the nature of the inclusion. This is also the case in regimes where the presence of the inclusion leads to a slow down of the crack.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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