配管材料の環境割れシミュレーション
英字タイトル:
FEM analysis on environmental stress cracking for plastic pipe materials
著者:
堤 三佳 Mitsuyoshi TSUTSUMI 黄木 景二 Keiji OGI 菊池 和彦 Kazuhiko KIKUCHI
発刊日:
公開日:
Diffusion problemEnvironmental stress crackFEM analysisFracture mechanicsInteraction problemSolvent crack
FEM analysis on environmental stress cracking for plastic pipe materials
著者:
堤 三佳 Mitsuyoshi TSUTSUMI 黄木 景二 Keiji OGI 菊池 和彦 Kazuhiko KIKUCHI
発刊日:
公開日:
カテゴリ: 第10回
キーワードタグ:Diffusion problemEnvironmental stress crackFEM analysisFracture mechanicsInteraction problemSolvent crack
概要
Environmental stress cracking (ESC) is one of the important causes of failure of a polymer product such as a pipe for chemicals. Both mechanical loading and diffusion of chemical from the surfa of material are dominant factors of ESC. In this study, growth ehavior of ESC was simulated by FEM analysis as a structure-diffusion interaction problem. The results show that the crack growt rate and the crack surface shape were affected by the diffusional rate and diffused concentration distribution in the material.
