求解层间界面反平面剪切破坏的剪切梁模型(Ⅰ)——基本特性

沈新普; 泽鲁·穆荣日

求解层间界面反平面剪切破坏的剪切梁模型(Ⅰ)——基本特性

沈新普¹,
泽鲁·穆荣日²

1.
东北大学理学院力学系, 沈阳 110006;
2.
波兰科学院基础技术所, 华沙波兰

基金项目: 欧盟资助课题(INCO-Copernicus;ERBIC15CT970706);东北大学青年科学基金资助课题(856049)

详细信息

作者简介:
沈新普(1963- ),男,河北省清河县人,副教授,博士.

中图分类号: O342
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- 被引次数: 0
出版历程
- 收稿日期: 1999-08-08
- 修回日期: 2000-09-20
- 刊出日期: 2000-11-15

Shear Beam Model for Interface Failure Under Antiplane Shear(Ⅰ)——Fundamental Behavior

SHEN Xin-pu¹,
Zenon Mroz²

1.
Department of Mechanics, Northeastern University, Shenyang 110006, P R China;
2.
Institute of Fundamental Technological Research, Polish Academy of Sciences, Warsaw, Poland

摘要

摘要: 在反平面剪切载荷及侧压力共同作用下引起的裂纹及裂纹扩展导致的层间界面失效,是岩土工程层间界面及砌体结构中界面层上典型的失效方式.运用弹性力学和断裂力学的理论原理,提出了能够反映上述层间界面断裂失效问题力学特性的剪切梁模型.文中采用具有应力软化特性的“粘性裂纹”(内聚力裂纹)模型来表述层间裂纹前方损伤过程区的本构行为.对通过粘性层结合在一起的两个弹性板,在反平面剪切载荷及侧压力共同作用下的力学行为作了解析分析计算,研究了层间界面裂纹扩展规律.
- 层间界面 /
- 粘性层 /
- 反平面剪切 /
- 剪切梁 /
- 破坏 /
- 失稳 /
- 损伤
Abstract: The propagation of interlayer cracks and the resulting failure of the interface is a typical mode occurring in rock engineering and masonry structure.On the basis of the theory of elastoplasticity and fracture mechanics,the shear beam model for the solution of interface failure was presented.The concept of cohesive crack.was adopted to describe the constitutive behavior of the cohesive interfacial layer.Related fundamental equations such as equilibrium equation,constitutive equations were presented.The behavior of a double shear beam bonded through cohesive layer was analytically calculated.The stable propagation of interface crack and process zone was investigated.
- interface layer /
- cohesive layer /
- anti-plane shear /
- shear beam model /
- failure /
- instability /
- damage

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参考文献(6)

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