Thermal shock analysis of 2D cracked solids using the numerical manifold method and precise time integration

被引：39
作者：
Zhang, H. H. [1 ]
Ma, G. W. [2 ,3 ]
Fan, L. F. [3 ]
机构：
[1] Nanchang Hangkong Univ, Sch Civil Engn & Architecture, Nanchang 330063, Jiangxi, Peoples R China
[2] Univ Western Australia, Sch Civil Environm & Min Engn, 35 Stirling Highway, Crawley, WA 6009, Australia
[3] Beijing Univ Technol, Coll Architecture & Civil Engn, Beijing 100084, Peoples R China
来源：
ENGINEERING ANALYSIS WITH BOUNDARY ELEMENTS | 2017年 / 75卷
基金：
中国国家自然科学基金;
关键词：
Crack; Thermal shock; Numerical manifold method; Precise time integration method; Transient temperature field; Stress intensity factors; FINITE-ELEMENT-METHOD; STRESS INTENSITY FACTORS; FUNCTIONALLY GRADED MATERIALS; THERMOELASTIC FRACTURE; INTERPOLATION COVERS; SIMULATION; PROPAGATION; CONDUCTION; PARTITION; CYLINDER;
D O I：
10.1016/j.enganabound.2016.11.012
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The numerical manifold method (NMM), combined with the precise time integration method (PTIM), is proposed for thermal shock fracture analysis. The temperature and displacement discontinuity across crack faces is naturally portrayed attributing to the cover systems in the NMM. The crack tip singularities are characterized through the use of asymptotic bases in the approximations. The discrete equations for transient thermal analysis are firstly solved with the PTIM and then the thermoelastic study is performed. With the interaction integral, the stress intensity factors are computed. Several examples are tested and the nice consistency between the present and existing results is found.
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页码：46 / 56
页数：11
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