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首页> 外文会议>Fracture and strength of solids VII >PREDICTION OF RESIDUAL STRESS RELAXATION OF SHOT PEENED 2024-T351 ALUMINUM ALLOY: PART 2.
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PREDICTION OF RESIDUAL STRESS RELAXATION OF SHOT PEENED 2024-T351 ALUMINUM ALLOY: PART 2.

机译：短锥2024-T351铝合金残余应力松弛的预测：第2部分。

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摘要

The initial compressive residual stresses induced or inherent in a component will not remain stable during the life of the component, it relax and redistributed. In design of the component, it is important to consider the relaxation of residual stress phenomenon. In this study, equations to predict residual stress relaxation of 2024 T351 aluminium alloy specimens were proposed. The equations developed from the experimental data of 2024 T351 aluminium alloy specimens that were shot peened under three different shot peening intensities and undergoing cyclic tests for two load magnitudes for 1,2, 10, 1000 and 10000 cycles. The residual stress, cold work and microhardness results were recorded after each cyclic load as well as the initial state. The presented model incorporates parameters including the degree of cold work, initial induced residual stress and the number of applied loading cycles.
机译：在组件的使用寿命期间，组件中引起或固有的初始压缩残余应力不会保持稳定，而是会松弛并重新分布。在组件的设计中，重要的是要考虑残余应力现象的松弛。在这项研究中，提出了预测2024 T351铝合金试样残余应力松弛的方程。该方程式是根据2024个T351铝合金试样的实验数据开发的，这些试样在三种不同的喷丸强度下进行喷丸处理，并在1、2、10、1000和10000个循环下对两种载荷量进行了循环测试。记录每个循环载荷以及初始状态后的残余应力，冷加工和显微硬度结果。提出的模型结合了参数，包括冷作程度，初始感应残余应力和施加的载荷循环次数。

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