Cyclic Elasto-Plastic Fracture Diagram and Some Parameters of Cyclic Crack Growth Resistance for the Plastic Steels

• 作者: A. V. Bogdanovich L. A. Sosnovskiy S. S. Sherbakov
• 来源期刊: 力学国际期刊(英文)
• 学科: 数学
• 关键词: Crack Growth Resistance ELASTO-PLASTIC Deformation Compact SPECIMEN PLASTIC Steel Stress Intensity Factor CONTRACTION
• 年，卷（期）: lxgjqkyw_2015,（5）
• 页码范围: 80-85
• 页数: 6页
• 分类号: O1

摘要

Method of calculation and experimental estimation of crack growth resistance under cyclic elastoplastic deformation is proposed. This method is based on measuring of local plastic strain near the crack tip and plotting the cyclic elasto-plastic fracture diagram for a specimen with a crack. Analysis of two types of the cyclic elasto-plastic fracture diagrams and their parameters is made. Ex-perimental D-diagrams of cyclic elasto-plastic fracture for the plastic carbon steel are given.