碳纤维增强铝合金层合板的残余热应力分析  

Analysis of Thermal Residual Stress in CFRP/Al Laminates(CARALL)

作　　者：薛佳[1] 汪文学[2] 徐元铭[1] 彭兴林[1] 

机构地区：[1]北京航空航天大学航空科学与工程学院,北京100083 [2]九州大学应用力学研究所

出　　处：《飞机设计》2008年第5期22-26,共5页Aircraft Design

摘　　要：碳纤维增强铝合金层合板(CARALL)是由碳纤维复合材料和铝合金薄板制成的,由于碳纤维复合材料和铝合金的热膨胀系数相差很大,加热固化后会产生较大的残余热应力。本文对碳纤维增强铝合金层合板中残余热应力进行了分析,并在碳纤维增强铝合金层合板的加热固化阶段,使用二次加热法来降低碳纤维复合材料和铝合金薄板的粘结温度,从而降低残余热应力。This research is about the analysis and reduction of thermal residual stress in CFRP/A1 laminates（ CARALL）, which is fabricated by carbon fiber reinforced plastic（ CFRP）combined with aluminum alloy（AL）. Large thermal residual stress in the aluminum alloy is generated during the curing process of CARALL due to the large mismatch of the coefficient of thermal expansion （CTE） between CFRP and aluminum alloy. Several methods are investigated to determine the thermal residual stress in CFRP/Al laminates and different temperature profiles are investigated to reduce the actual bonding temperature of CFRP and AL layers, since the thermal residual stress is determined by the difference between actual bonding temperature and room temperature.

关 键 词：复合材料 碳纤维增强铝合金层合板 残余热应力 

分 类 号：V257[一般工业技术—材料科学与工程]