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Investigation of Stresses in the Vicinity of Crack Tip through the Three Dimensional Elastic Finite Element Analysis

Memoirs of the Faculty of Engineering, Yamaguchi University Volume 34 Issue 1 Page 39-45
published_at 1983
KJ00000156482.pdf
[fulltext] 398 KB
Title
三次元弾性有限要素法による亀裂先端近傍の応力解析
Investigation of Stresses in the Vicinity of Crack Tip through the Three Dimensional Elastic Finite Element Analysis
Creators kawano Shunichi
Creators Shimizu Shigetoshi
Source Identifiers
The object of this paper is to find the stress distributions through the thickness direction by using the three dimensional elastic finite element method (3-D FEM). First, the authors propose the new procedure for the FEM calculation without assembling the stiffness matrix [K], because the 3-D FEM requires the large storage core for [K]. Furthermore, the deflection vectors obtained by the two dimensional FEM are used as the initial values for the iteration method, which is programed in the 3-D FEM. In consequence, it is clear that the present method is able to analyse the problem with a large number of nodal points within the storage core and to expect the good convergence of solutions within a few number of iterations. Finally, the stress distribution and the stress intensity factor K_1 through the thickness direction are evaluated by using the present FEM program. At the center of thickness, the thickness directional stress is effected on the plate thickness B, but the other stresses and K_1 are almost independent of B.
Subjects
機械工学 ( Other)
Languages jpn
Resource Type departmental bulletin paper
Publishers 山口大学工学部
Date Issued 1983
File Version Version of Record
Access Rights open access
Relations
[ISSN]0372-7661
[NCID]AN00244228
Schools 工学部