表面き裂解析プログラム(SCANP)の特長とその適用性評価
Features of surface crack analysis program “SCANP” and its applicability evaluation
著者:
永井 政貴 Masaki NAGAI 三浦 直樹 Naoki MIURA 白鳥 正樹 Masaki SHIRATORI
発刊日:
公開日:
概要
Stress intensity factor is an important parameter to determine crack growth behavior due to fatigue or stress corrosion cracking (SCC). A number of stress intensity factor solutions have been proposed for various types of cracks. Shiratori has developed the surface crack analysis program, by which stress intensity factor for a crack under an arbitrary stress distribution can be calculated and the crack growth analysis can be performed. We have developed “Surface Crack ANalysis Program (SCANP)”, in which an extension of applicable range of stress intensity factor solutions, extensions of crack growth analysis functions and an improvement of program’s operability are performed based on Shiratori’s original program. In this study, we introduce features of the SCANP. In addition, in order to evaluate the applicability of the SCANP for the flaw evaluation, a comparison between the stress intensity factor solution obtained by the SCANP and other solutions is performed. Keywords: Structural Integrity Assessment, Stress intensity factor, Linear Elastic Fracture Mechanics, Crack Growth Analysis, Influence Function Method
