A cohesive zone model with rate-sensitivity for fast crack propagation
A cohesive zone model with rate-sensitivity for fast crack propagation
复制标题
用于快速裂纹扩展的具有速率敏感性的内聚区模型
DOI：
10.1016/j.mechrescom.2013.12.008
复制
发表时间：
2014
影响因子：
2.4
通讯作者：
J. Laverne
中科院分区：
文献类型：
--
作者：
N. Valoroso;G. Debruyne;J. Laverne
我们用内聚区方法研究了I型动态裂纹的扩展。小规模的过程通过速率敏感性的形式来表示，这将微观裂化的影响转化为宏观水平。也就是说，在模型中包含了速率敏感度，它与通常在实验中测量的裂纹前沿的速度直接相关。最后给出了一个具有代表性的数值算例，验证了该方法的有效性。
We study mode-I dynamic crack propagation using the cohesive-zone methodology. Subscale processes are represented via a form of rate-sensitivity, which translates to the macroscopic level the effects of micro-cracking. Namely, rate-sensitivity is included in the model in a way that it is directly related to the speed of the crack front that is typically measured during experiments. A representative numerical example is discussed that demonstrates the effectiveness of the proposed approach.
影响因子：
2.5
作者：
K. Ravi-Chandar;W. Knauss
通讯作者：
K. Ravi-Chandar;W. Knauss