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Effects of Thermal Cycling on Microscopic Damage Progress in Laminated Composites

机译:热循环对层状复合材料微观损伤进展的影响

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摘要

Effects of thermal cycling on transverse cracking behavior in CFRP cross-ply laminates are investigated. A material used is T800H/3613 carbon/epoxy composite. The laminate configurations are cross-ply (0/90m/0) where m=4, 8 and 12. The laminates are thermally cycled between -70 deg. C and 150 deg. C up to 100 cycles. No damage is observed by the thermal cycles. After thermal cycling, the laminates are subjected to static tensile loading at room temperature. The transverse crack density in 90° ply is measured as a function of the laminate strain by using the replica technique.
机译:研究了热循环对CFRP多层层压板横向开裂行为的影响。使用的材料是T800H / 3613碳/环氧树脂复合材料。层压板配置为交叉铺层(0 / 90m / 0),其中m = 4、8和12。将层压板在-70度之间进行热循环。摄氏150度C最多100个循环。热循环未观察到损坏。在热循环之后,层压板在室温下经受静态拉伸载荷。通过使用复制技术,可以测量90°帘布层中的横向裂纹密度与层压应变的关系。

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