The Application of Fracture Mechanics to the Problem of Crevasse Penetration
The Application of Fracture Mechanics to the Problem of Crevasse Penetration
复制标题
断裂力学在裂隙穿透问题中的应用
DOI：
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发表时间：
1976
影响因子：
3.4
通讯作者：
Crevasse Penetration
中科院分区：
文献类型：
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作者：
Fracture Mechanics;Crevasse Penetration
弹性应力强度因子是断裂力学中用来描述尖锐裂纹尖端附近应力状态的一个参数。通过叠加不同加载条件下的应力强度因子的解，导出了模拟冰缝的方程。解决方案的理论深度孤立裂隙，免费或部分充满水。与Weertman以前使用不同技术进行的计算非常一致。决口间距的影响进行了研究，它表明，更紧密的间距总是减少决口深度，但在很宽的间距范围内的预测变化的深度是轻微的。
Abstract The elastic stress intensity factor is a parameter used in fracture mechanics to describe stress conditions in the vicinity of the tip of a sharp crack. By superimposing solutions of stress intensity factors for different loading conditions, equations are derived which model crevasses in ice. Solutions are presented for the theoretical depth of isolated crevasses, free from or partially filled with water. Close agreement exists with a previous calculation by Weertman using a different technique. The effect of crevasse spacing is investigated and it is demonstrated that closer spacing always reduces crevasse depth, but over a wide range of spacing the predicted variation in depth is slight.