航空科学技术2024，Vol.35Issue(10)：59-66,8.DOI:10.19452/j.issn1007-5453.2024.10.007
基于晶体塑性理论和XFEM的镍基单晶三维裂纹扩展仿真研究
3D Crack Propagation Simulation in Nickel-based Single Crystals Based on Crystal Plasticity Theory and XFEM
摘要
Abstract
Nickel-based single crystal is the main turbine blade material of aero-engine,and its crack propagation characteristics play an important role in airworthiness management and life evaluation of aero-engine.However,it is difficult to accurately evaluate the crack propagation behavior based on simple material constitutive and damage model simulation analysis due to its crystal anisotropy.In this paper,the crystal plasticity theory and extended finite element(XFEM)are combined to simulate the crack propagation behavior of nickel-based single crystal materials in three-dimensional space through the secondary development of simulation software,and the rationality of the method is verified by comparing with the relevant experimental results.Furthermore,the crack propagation behavior of the three-dimensional structure of the gas film hole at the leading edge of the turbine blade is analyzed by the established method.The result can provide technical support for damage tolerance evaluation and long-life design of blades.关键词
晶体塑性理论/扩展有限元/镍基单晶高温合金/裂纹扩展Key words
crystal plasticity theory/extended finite element/nickel-based single crystal superalloy/crack propagation分类
航空航天引用本文复制引用
朱西点,杨未柱,孙培杰,李磊,岳珠峰..基于晶体塑性理论和XFEM的镍基单晶三维裂纹扩展仿真研究[J].航空科学技术,2024,35(10):59-66,8.基金项目
航空科学基金(2020Z039053002) （2020Z039053002）
陕西省高校科协青年人才托举计划项目(20210403) Aeronautical Science Foundation of China(2020Z039053002) （20210403）
Young Talent Fund of University Association for Science and Technology in Shaanxi(20210403) （20210403）
