Fracture toughness of snow in shear and tension

被引：32

作者：

Kirchner, HOK

Michot, G

Schweizer, J

机构：

[1] Swiss Fed Inst Snow & Avalanche Res, CH-7260 Davos, Switzerland

[2] Univ Paris 11, Inst Sci Mat, F-91405 Orsay, France

[3] Ecole Mines, Phys Mat Lab, F-54042 Nancy, France

来源：

SCRIPTA MATERIALIA | 2002年 / 46卷 / 06期

关键词：

mechanical properties; brittle fracture; fracture toughness; snow slab avalanche;

D O I：

10.1016/S1359-6462(02)00007-6

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Snow slab avalanche release involves brittle fracture. The fracture criterion in mixed mode for dry snow (p = 170 kg m(-3)) was determined by cantilever beam experiments: (K(Ic)(2) + K(Hc)(2))(1/2) = 430 +/- 90 Pa m(1/2). Fracture toughness in shear, K(Hc), is about the same as in tension, K(Ic). (C) 2002 Acta Materialia Inc. Published by Elsevier Science Ltd. All rights reserved.

引用

页码：425 / 429

页数：5

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