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碳纤维板与镁合金板的复合层板层间的断裂韧度

Interlaminar Fracture Toughness of Composite Layer Plate of Carbon Fiber Plate with Magnesium Alloy Plate
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摘要 碳纤维增强镁合金层合板是使用镁合金和碳纤维代替常用的玻璃纤维增强铝合金层合板中的铝合金和玻璃纤维,采用单悬臂梁测量载荷速率对碳纤维增强镁合金层合板层间断裂韧度的影响。结果表明,层间裂纹在低载荷速率时呈现稳定扩展方式,但是随着速率增加,裂纹扩展的不稳定性增大。在低速率(1~1000mm/min)载荷下,载荷速率对层间断裂韧度有轻微的影响。复合层合板在高速率载荷下的层间断裂韧度大于低速率下的层间断裂韧度。 Carbon fiber reinforced magnesium alloy laminated plates are made of magnesium alloy and carbon fiber instead of glass fiber reinforced aluminum alloy laminated plates of aluminum alloy and glass fiber commonly used in modern aviation and aerospace engineering. Effects of loading velocity on fracture toughness of the composite layer of carbon fibre reinforced magnesium alloy laminated plates were investigated with the help of single cantilever. The results reveal that interlaminar crack is characterized by steady propagation mode in low load rate, while with the increase of speed, the instability of the crack propagation is increased. At low veloaty (1 mm/min to 1 000 mm/min), load rate exhibits a slight effect on interlaminar fracture toughness. The interlaminar fracture toughness of composite laminated plates at high loading is higher than that at lower rate.
作者 赵明炬 朱公志 Zhao Mingju, Zhu Gongzhi(1. Economics and Business Administration College, Jilin Institute of Chemical 2. Transportation Equipments and Ocean Engineering College, Dalian Maritime Technology; University)
出处 《特种铸造及有色合金》 CAS CSCD 北大核心 2014年第3期296-298,共3页 Special Casting & Nonferrous Alloys
关键词 碳纤维 镁合金 层合板 载荷速率 断裂韧度 Carbon Fiber, Magnesium Alloy, Laminated Plates,Loading Rate, Fracture Toughness
作者简介 赵明炬,男,1971年出生,副教授,吉林化工学院经济管理学院,吉林省吉林市龙潭区承德街45号(132022),电话:18686315699,E-mail:zmj@jlict.edu.cn
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