| 张 开1 ，唐振寰 2 ，王建方 2.韧性材料的冲蚀损伤数值仿真综述[J].航空发动机,2023,49(2):89-98 |
| 韧性材料的冲蚀损伤数值仿真综述 |
| Review on Numerical Simulation of Erosion Damage of Ductile Materials |
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| DOI： |
| 中文关键词: 韧性材料 砂尘 金属 冲蚀损伤机理 数值仿真 航空发动机 |
| 英文关键词:ductile material sand/dust metal erosion mechanism numerical simulation aeroengine |
| 基金项目:航空动力基础研究项目资助 |
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| 摘要点击次数: 734 |
| 全文下载次数: 1073 |
| 中文摘要: |
| 砂尘造成韧性材料的冲蚀损伤现象和损伤演化规律是冲蚀机理研究的重要内容，基于相应冲蚀试验和数值仿真的分析
方法是揭示冲蚀机理的重要手段。回顾了砂尘冲蚀损伤研究的缘起和发展经历，在介绍砂尘冲蚀损伤机理的基础上，总结了当前
数值仿真研究的3种主流方法：有限元方法、无网格方法和计算流体动力学方法。从数值仿真角度针对砂尘对韧性材料造成的破
坏模式、砂尘冲击姿态、砂尘冲击速度和形状、砂尘破碎对材料去除机制的影响等4个方面综述了影响冲蚀损伤机理的主要因素
和当前研究进展。砂尘对韧性材料造成的破坏模式通常分为材料凹陷、滑动、犁削、切削等4种不同机制；砂尘的冲击姿态决定了
材料的损伤模式；砂尘的冲击速度和砂尘的形状决定了材料的损伤严重程度；砂尘破碎现象对材料的去除机制有一定影响。 |
| 英文摘要: |
| The damage phenomena and damage evolution laws of ductile materials sand erosion under different impact conditions are
important aspects of erosion mechanism research, and the analysis method based on corresponding erosion tests and numerical simulations
are is the necessary ways to study the erosion mechanisms. This paper reviews the origin and development of the research on sand erosion
damage. Based on the introduction of the mechanisms of sand erosion damage, three mainstream numerical simulation methods are summa?
rized: finite element method, meshfree method, and computational fluid dynamics method. From the perspective of numerical simulation,
the main factors affecting the sand erosion damage mechanisms of ductile materials and current research progress are summarized, includ?
ing the damage mode, impact attitude, impact speed, sand particle shape, and the effect of sand particle fragmentation on the material re?
moval mechanism. The damage modes of ductile materials caused by sand are usually categorized into four different mechanisms: material
indentation, sliding, ploughing, and cutting. The impact attitude of sand determines the damage mode of the material. The impact velocity
and shape of sand determine the severity of material damage. The phenomenon of sand fragmentation has a certain effect on the material re?
moval mechanism. |
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