Review and evaluation of weight functions and stress intensity factors for edge-cracked finite-width plate

Wu X. R.; Tong D. H.; Zhao X. C.; Xu W.

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Review and evaluation of weight functions and stress intensity factors for edge-cracked finite-width plate

机译：边缘裂纹有限宽度板重量函数和应力强度因子的回顾与评价

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Various analytical and numerical weight functions (WFs) for the edge-cracked finite-width plate (ECFWP) configuration have been developed in the literature for efficient fracture mechanics analyses involving complicated/arbitrary load conditions. The objective of this paper is to make a comprehensive review and critical evaluation of the existing WFs determined by using various approaches, e.g. singular integral equation methods; one/two reference load case(s) based analytical approaches; fitting and interpolation to handbook solutions; numerical methods such as the complex Taylor series expansion and finite element analysis. The accuracy levels of existing WFs are assessed in rigorous manner by benchmarking the corresponding Green's functions (GFs) against well-recognized accurate solutions. A highly accurate and wide-ranging analytical ECFWP WF is presented in closed form. Stress intensity factor and crack opening displacement solutions for various load cases of practical interest are easily determined with high accuracy by using the well-verified analytical ECFWP WF for this crack configuration to demonstrate the methods.

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来源
《Engineering Fracture Mechanics》 |2018年第2018期|共22页
作者
Wu X. R.; Tong D. H.; Zhao X. C.; Xu W.;
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作者单位

AECC Beijing Inst Aeronaut Mat Beijing 100095 Peoples R China;

AECC Beijing Inst Aeronaut Mat Beijing 100095 Peoples R China;

AECC Beijing Inst Aeronaut Mat Beijing 100095 Peoples R China;

Shanghai Jiao Tong Univ Sch Aeronaut &

Astronaut Shanghai 200240 Peoples R China;

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原文格式 PDF
正文语种 eng
中图分类工程力学;
关键词
Weight function; Stress intensity factor; Crack opening displacement; Green's function; Accuracy assessment; Edge-cracked finite-width plate;

机译：重量函数;应力强度因子;裂缝打开位移;绿色功能;精度评估;边缘破裂的有限宽度板;

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3. SEMI-WEIGHT FUNCTION METHOD ON COMPUTATION OF STRESS INTENSITY FACTORS IN DISSIMILAR MATERIALS [J] . 马开平, 柳春图应用数学和力学（英文版） . 2004,第011期
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6. Review and evaluation of weight functions and stress intensity factors for edge-cracked finite-width plate [J] . Wu X. R., Tong D. H., Zhao X. C., Engineering Fracture Mechanics . 2018,第期

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9. Stress intensity factors of edge-cracked semi-infinite plates under transient thermal loading [C] . Wei-Chung Wang, Tsai-Lin Chen, Chi-Hung Hwang International conference on photomechanics and speckle metrology . 1991

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Review and evaluation of weight functions and stress intensity factors for edge-cracked finite-width plate

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