文献类型：期刊文献

英文题名：Analysis of Damage Field of Needle Coke Impacted by High Pressure Water Jet Based on SPH Algorithm

作者：Bian, Jiapan[1]; Chen, Jianjun[1]

机构：[1] East China University of Science and Technology, School of Mechanical and Power Engineering, Shanghai, China

年份：2021

起止页码：221

外文期刊名：Proceedings - 2021 4th International Conference on Electron Device and Mechanical Engineering, ICEDME 2021

收录：EI(收录号：20212410491541)

语种：英文

外文关键词：Cracks - Numerical methods - Jets - Hydrodynamics - Needles - Failure (mechanical)

摘要：The JH2 model is used to characterize the mechanical properties of the needle coke, the smooth particle hydrodynamics (SPH) and finite element method(FEM) coupling algorithm is used to establish the numerical simulation process of the high-pressure water jet impacting the needle coke, and the needle coke failure mechanism is analyzed. The established numerical model can be used to analyze the damage evolution process of needle coke under the action of water jet. The simulation results agree with the experimental results. The process of the needle coke failure is in very short time. Under the impact of the water jet, two "eight"-shaped main cone cracks and several axial cracks are formed inside the needle coke. The stretching is the main reason for cracks propagation. The water jet impact angle and water jet velocity have a great influence on the growth of needle coke cracks. When the jet angle is 5°, the width between the two main cone cracks and the cone crack propagation depth are the largest. The width between the two main cone cracks and the maximum expansion depth of the cone crack have a quadratic function relationship with the jet velocity. ? 2021 IEEE.