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OA
3D Crack Propagation Simulation in Nickel-based Single Crystals Based on Crystal Plasticity Theory and XFEM
镍基单晶作为主要的航空发动机涡轮叶片材料,其裂纹扩展特性对航空发动机的适航管理和寿命评估都有着重要作用,但是其晶体各向异性特点使得基于简单材料本构和损伤模型的仿真分析难以进行准确的裂纹扩展行为评估.本文将晶体塑性理论与扩展有限元(XFEM)相结合,通过对仿真软件的二次开发,实现了镍基单晶材料在三维空间内的裂纹扩展行为仿真,并通过与相关试验结果对比验证了方法的合理性,进一步利用建立的方法分析了涡轮叶片前缘气膜孔三维结构的裂纹扩展行为,可为叶片的损伤…查看全部>>
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(X…查看全部>>
朱西点;杨未柱;孙培杰;李磊;岳珠峰
西北工业大学,陕西西安 710072西北工业大学,陕西西安 710072西北工业大学,陕西西安 710072西北工业大学,陕西西安 710072西北工业大学,陕西西安 710072
晶体塑性理论扩展有限元镍基单晶高温合金裂纹扩展
crystal plasticity theoryextended finite elementnickel-based single crystal superalloycrack propagation
《航空科学技术》 2024 (10)
59-66,8
航空科学基金(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)Young Talent Fund of University Association for Science and Technology in Shaanxi(20210403)
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