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A Consideration on the Finite Element Method for Calculating Stress Intensity Factor K_I using the J-Integral Method

Memoirs of the Faculty of Engineering, Yamaguchi University Volume 24 Issue 3 Page 11-20
published_at 1974
KJ00000156040.pdf
[fulltext] 463 KB
Title
J-積分法を用いた場合の有限要素法による応力拡大係数 K_I の精度について
A Consideration on the Finite Element Method for Calculating Stress Intensity Factor K_I using the J-Integral Method
Creators Shimizu Shigetoshi
Creators kawano Shunichi
Creators Nakasima Toshiaki
Source Identifiers
In determining the stress intensity factor K_I, the direct application of the finite element method gives poor results in the accuracy, but the J-Integral method developed by Rice can be expected somewhat good accuracy for relatively coarse meshes. Recently Yamamoto et al. have proposed a calculation method based on superposition of analytical and finite element solution. They obtained fairly good results. The purpose of this paper is to get good accuracy for extremely coarse meshes by the application of J-Integral method to the superposition method. The numerical calculations were performed for such three cases as center cracked, symmetrical edge cracked and single edge cracked rectangular plates (aspect ratio, L/W=1.4) using 215,110 and 35 meshes. The calculated values for the correction factor, F(a/W) were obtained within 1~3% against the exact solution for every cases.
Subjects
機械工学 ( Other)
Languages jpn
Resource Type departmental bulletin paper
Publishers 山口大学工学部
Date Issued 1974
File Version Version of Record
Access Rights open access
Relations
[ISSN]0372-7661
[NCID]AN00244228
Schools 工学部