Inter laminar thermal stress analysis in symmetric composite laminated metallic

A model is presented that allows the evaluation of global and interlaminarthermal stresses in symmetrical metallic laminated composites. Besides being fully compatible with experiments, it is relatively simple. It is analogous tothe model used by Acosta[1] to determine interlaminar and global stresses in composites under tension. It is linear, the superposition principle is valid. To validate the model electrical strain gauge technology and a special heat chamber were used. Experimental tests were performed in two composites metal laminates; one of two layers of aluminum and astainless steelinter mediate layer(AL-AI-AL), and another with two stainless steel layersand an intermediate layer of aluminum(AI-AL-AI). The experimental data were feed up inthe model; and interlaminar and global thermal stresses and thermal expansion coefficients (CET) were determined for each layer. Experimental results show consistency and reliability in the application of the model.