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推导了从衍射角测量值直接计算三维残余应力各应力分量的计算公式,分析了用平行光束应力仪测量三维残余应力的可行性。在一种用 SiC 颗粒增强的铝基复合材料上的实测结果表明,应力仪所测得的三维残余应力的数据是可靠的。
The formula to calculate the stress component of three-dimensional residual stress directly from the measurement of diffraction angle is deduced. The feasibility of measuring three-dimensional residual stress with parallel beam stress meter is analyzed. The measured results on an aluminum matrix composite reinforced with SiC particles indicate that the three-dimensional residual stress data measured by the stress meter are reliable.