Analytical models for predicting tensile strength and acoustic emission count of a glass fiber reinforced polyamide using response surface method

Abstract The present paper consists in developing mathematical models on tensile strength and acoustic emission count of a glass fiber reinforced polyamide. The mathematical models have been determined using response surface method (RSM), in which three factors with three levels are implemented. Glass fiber content, temperature and strain rate are chosen as the main input parameters in this study. The tensile strength and acoustic emission count are considered as an output response in which are evaluated through experimental tests. MINITAB statistical package was used to analyze the experimental results and to investigate the effect and the interaction of different factors. These models can be used as an interesting method for evaluating analytically both the tensile strength values and their corresponding acoustic emission count as function of Glass fiber content, temperature and the applied strain rate. The proposed approach can be used as a powerful and an interesting method for engineering design, to more secure tensile strength behavior of a glass fiber reinforced polyamide using the acoustic emission technique.