Determination of fracture strain using stress relaxation method

摘要

This project is a study on determination of fracture strain using stress relaxation method. The objectives of this project are to determine fracture strain of API X65 using stress relaxation method and to investigate the effect of true stress-strain data on failure initiation point. This project involves both analysis and experiment of the API X65 steel using tensile test and MSc Marc 2008 r1 software. This project will determine fracture of ductile material using stress relaxation method. For validation, simulated results using stress relaxation method are compared with the experimental data for API X65 steel. Advantages in the use of the stress relaxation method for practical used are discussed. The results show that good comparison between simulation and experimental results support the method of stress relaxation method.ud