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首页> 外文期刊>Journal of Applied Polymer Science >Tensile behavior of composite patched cracked metallic structures
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Tensile behavior of composite patched cracked metallic structures

机译：复合修补裂纹金属结构的拉伸行为

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摘要

Composite patches of epoxy-based unidirectional carbon and woven glass prepregs were adhesively bonded on uncracked and center cracked standard specimens of aluminum sheet, and patched specimens were evaluated by tensile testing. The effect of various surface treatments, patch length, and number of plies on the tensile strength was studied. Surface preparation of the specimens by sandblasting had a pronounced effect on strength improvement compared to other physical or chemical treatments. The strength of the cracked specimens increased up to 79% for unidirectional carbon patched specimens and 75% for woven glass patched specimens. (C) 1998 John Wiley & Sons, Inc. [References: 8]
机译：将环氧基单向碳和玻璃纤维预浸料的复合贴片粘合在未开裂和中心开裂的铝板标准样品上，并通过拉伸测试对贴剂样品进行评估。研究了各种表面处理，贴片长度和层数对拉伸强度的影响。与其他物理或化学处理相比，通过喷砂处理对标本进行表面处理对强度提高具有显着影响。对于单向碳修补标本，破裂试样的强度提高了79％，对于玻璃纤维修补标本，断裂试样的强度提高了75％。 （C）1998 John Wiley＆Sons，Inc. [参考：8]

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