利用有限元分析软件ANSYS/LS-DYNA,通过设立局部坐标系和运用三参数Barlat模型建立了DD3镍基单晶高温合金的喷丸强化有限元模型,并对喷丸后的残余应力进行了有限元模拟和实际测试。结果表明：由于镍基单晶高温合金的各向异性,在不同取向上呈现不同的残余应力状态,且同一晶面不同取向的最小残余压应力出现在组成滑移系的晶向上;模拟结果与试验结果吻合较好。
The finite element model of DD3 nickel-based single crystal high temperature alloy after shot peening strengthening was established with ANSYS/LS-DYNA software by building local coordinate system and 3-parameter Barlat model,and the finite element simulation and practical test for residual stress after shot-peening were carried out.The results show that different orientations had different residual stress states because of the anisotropy of DD3 nickel-based single crystal high temperature alloy,and the minimum residual compressive stress in different orientations on the same crystal plane appeared on the crystal orientation comprising slip system.The simulative results and experimental results matched fairly well.
参考文献
| [1] | 付艳艳,宋月清,惠松骁,米绪军.航空用钛合金的研究与应用进展[J].稀有金属,2006(06):850-856. |
| [2] | 高广睿 .表面改性对钛合金高温微动疲劳行为影响的研究[D].西北工业大学,2005. |
| [3] | 刘道新,何家文.微动疲劳影响因素及钛合金微动疲劳行为[J].航空学报,2001(05):454-457. |
| [4] | 李伟,何卫锋,李应红,汪诚,杨卓君.激光冲击强化对K417材料振动疲劳性能的影响[J].中国激光,2009(08):2197-2201. |
| [5] | 邹世坤.激光冲击处理在航空工业中的应用[J].航空制造技术,2006(05):36-38. |
| [6] | 王健,邹世坤,谭永生.激光冲击处理技术在发动机上的应用[J].应用激光,2005(01):32-34. |
| [7] | 郭大浩,吴鸿兴,王声波,洪昕,王劼,戴宇生,夏小平,张永康,张宏,唐亚新,余承业.激光冲击强化机理研究[J].中国科学(E辑),1999(03):222-226. |
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