A polygon scaled boundary finite element formulation for transient coupled thermoelastic fracture problems

被引：25
作者：
Ooi, E. T. [1 ]
Iqbal, M. D. [2 ]
Birk, C. [2 ]
Natarajan, S. [3 ]
Ooi, E. H. [4 ]
Song, C. [5 ]
机构：
[1] Federat Univ, Sch Sci Engn & Informat Technol, Ballarat, Vic 3350, Australia
[2] Univ Duisburg Essen, Fak Ingn Wissensch, Fachgebiet Stat & Dynam Flachentragwerke, D-45141 Essen, Germany
[3] Indian Inst Technol, Dept Mech Engn, Integrated Modelling & Simulat Lab, Chennai 600036, Tamil Nadu, India
[4] Monash Univ Malaysia, Sch Engn, Bandar Sunway 47500, Selangor, Malaysia
[5] Univ New South Wales, Sch Civil & Environm Engn, Sydney, NSW 2031, Australia
来源：
ENGINEERING FRACTURE MECHANICS | 2020年 / 240卷
关键词：
Scaled boundary finite element method; Coupled thermoelasticity; Stress intensity factors; Fracture; Thermal stress; NUMERICAL MANIFOLD METHOD; DYNAMIC CRACK ANALYSIS; THERMAL-SHOCK; CELL METHOD; PROPAGATION; SIMULATION;
D O I：
10.1016/j.engfracmech.2020.107300
中图分类号：
O3 [力学];
学科分类号：
08 ; 0801 ;
摘要：
The scaled boundary finite element method is developed for transient thermoelastic fracture analysis. To enable this, a set of novel shape functions are derived considering thermoelastic equilibrium. The salient features of the proposed framework are: (a) can be formulated on polygons with an arbitrary number of sides leading to flexible mesh generation and (b) facilitates an accurate and direct evaluation of the stress intensity factors from their definition without resorting to any post-processing techniques using relatively coarse meshes. Several numerical benchmark problems demonstrate the aforementioned features of the technique.
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页数：32
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