THE SIMULATION OF STRESSES DISTRIBUTION AND FATIGUE LIFE OF CRACK INITIATION OF GAS PIPELINES

Abstract: This paper presents the simulation of stresses distribution and crack initiation of gas pipelines surface. The materials are used from low carbon steel with artificial defects under external load. A finite element analysis (FEA) is used to investigate the highest Von Mises stress and fatigue life shows that crack initiation occurs on the pipeline surface. The parameter is used as the difference loads from 60 kN to 120 kN have been used to investigate the maximum stresses. In this research the maximum stresses occurred at corner gauge of joint of two pipelines. The stress distribution analysis from the model developed was successfully simulated and the critical and potential area for fatigue life of crack initiation, this performance result is compared with previous researcher.

Keywords: Stress Distribution, Crack Initiation, Gas Pipeline, Linear Elastic, Mechanical Properties, Loading, FEA, and Fatigue Life.