Effect of Dwell Time and Heating Rate on Thermal Residual Stresses in Co-Cured Aluminum/Composite Hybrid Shaft
In this work, thermal residual stresses and deformation of an aluminum/composite hybrid shaft was studied using ABAQUS FEM software. In order to reduce the thermal residual stresses and deformation produced during co-cure bonding stages due to the difference of coefficients of thermal expansions (CTE) of the composite and the aluminum tube, the curing temperature field was optimized. The effects of dwell time and heating rate were investigated. The results show that residual stresses can be reduced obviously by reasonable dwell time and slow heating rate. The dwell time and heating rate also effect the degree of cure which influenced the mechanic property of aluminum/composite hybrid structure directly.