| Steady-state growing crack-tip field characteristics of mode Ⅲ elastic-viscoplastic/rigid interface cracks |
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| 引用本文： | 梁文彦,王振清,杨增杰. Steady-state growing crack-tip field characteristics of mode Ⅲ elastic-viscoplastic/rigid interface cracks[J]. 应用数学和力学(英文版), 2010, 31(2): 227-235. DOI: 10.1007/s10483-010-0210-9 |
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| 作者姓名： | 梁文彦 王振清 杨增杰 |
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| 作者单位： | Smart Structures and Advanced Composites Laboratory,College of Aerospace and Civil Engineering,Harbin Engineering University,Harbin 150001,P.R.China |
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| 基金项目： | Project supported by the Ph. D. Programs Foundation of Ministry of Education of China(No. 20060217010); the Fundamental Research Foundation of Harbin Engineering University(No. HEUFT07005) |
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| 摘 要： | The existence of viscosity effect at the interface of double dissimilar materials has an important impact on the distribution of the interface crack-tip field and the properties variety of the interface itself. The singularity and viscosity are considered in the crack-tip. The elastic-viscoplastic governing equations of double dissimilar materials at the interface crack-tip field are established. The displacement potential function and boundary condition of interface crack-tip are introduced. The numerical analysis of elastic-viscoplastic/rigid interface for mode Ⅲ is worked out. The stress-strain fields are obtained at the crack-tip and the variation rules of solutions are discussed according to each parameter. The numerical results show that the viscosity effect is a main factor of the interface propagating in the crack-tip field, and the interface crack-tip is a viscoplastic field governed by the viscosity coefficient, Mach number (Ma), and singularity exponent.
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| 关 键 词： | 裂纹尖端场 界面裂纹 扩展裂纹 Ⅲ型 稳态 粘度效应 异种材料 塑性方程 |
| 收稿时间： | 2009-06-30 |
Steady-state growing crack-tip field characteristics of mode III elastic-viscoplastic/rigid interface cracks |
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| Wen-yan Liang,Zhen-qing Wang,Zeng-jie Yang. Steady-state growing crack-tip field characteristics of mode III elastic-viscoplastic/rigid interface cracks[J]. Applied Mathematics and Mechanics(English Edition), 2010, 31(2): 227-235. DOI: 10.1007/s10483-010-0210-9 |
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| Authors: | Wen-yan Liang Zhen-qing Wang Zeng-jie Yang |
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| Affiliation: | Smart Structures and Advanced Composites Laboratory,College of Aerospace and Civil Engineering,Harbin Engineering University,Harbin 150001,P.R.China |
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| Abstract: | The existence of viscosity effect at the interface of double dissimilar materials has an important impact on the distribution of the interface crack-tip field and the properties variety of the interface itself. The singularity and viscosity are considered in the crack-tip. The elastic-viscoplastic governing equations of double dissimilar materials at the interface crack-tip field are established. The displacement potential function and boundary condition of interface crack-tip are introduced. The numerical ... |
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| Keywords: | interface crack viscosity dynamic propagation elastic-viscoplastic materials |
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