预应变法调整芳纶－铝层板的残余应力
METHOD OF MODIFYING RESIDUAL STRESSES OF ARAMID-ALUMINIUM LAMINATES(ARALL) BY PRESTRAIN
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摘要: 采用预应变法能有效地调整芳纶-铝层板的层间残余应力[1]。本文分析了3/2铺层的芳纶-铝层板的残余应力与所施加的预应变的关系;并用腐蚀法测定了几种不同的预应变层板中铝层的残余应力;研究了施加预应变对层板的拉伸性能和疲劳性能的影响。Abstract: Tensile pre-strain was applied to the Aluminium-Aramid Laminates to modify the interlaminar xesidual stresses.The relationship between residual stresses in aluminium and the pre-strain was analysed.The residual stresses in aluminium of several kinds of pre-strain laminates were measured by means of outer layer corrosion.The influences of prestrain on tensile and fatigue properties of the laminates were also studied.
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Key words:
- aramid-aluminium laminate(ARALL) /
- residual stress /
- prestrain
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