The curing time and temperature of apaste adhesive were found to be one of the most effective parameters in the behavior of the bonded composite– steel joints. These parameters were utilized in modeling and optimization, using response surface methodology to achieve a good joint strength and a reasonable joint elongation. The central composite second-order rotatable design has been utilized to conduct the experimental matrix planning. An alysis of variance has been employed successfully to test the adequacy, significance and meaningfulness of the developed mathematical model. Numerical analyses indicated the optimized curing temperature and time as 40C and 180min, respectively. The predicted values were verified by mechanical tests, optical microscopy and scanning electronmicro-scopy; thus the developed mathematical models can predict the responses adequately and optimize the key process parameters quickly and precisely.

Get Full Paper