Abstract
The present paper consists, firstly, of developing mathematical models to predict the stress concentration factor of a carbon fiber reinforced epoxy. Based on response surface method (RSM), a mathematical model has been determined, in which three factors with three levels are implemented. Carbon fiber content, fiber angle, and stress loading are chosen as the main input parameters in this study. The stress concentration factor is considered as an output response which is evaluated through finite element study. Secondly, the reliability of the stress concentration factor is proposed based on the developed mathematical models, where the dispersions of (i) the carbon fiber content and (ii) the fiber angle are taken into account using the Strength-Load method with the reliability index simulation. The proposed approach can be used as a powerful and an interesting method for engineering design to determine with more security the stress concentration factor behavior of a carbon fiber reinforced epoxy.
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Makki, M.M., Ahmed, B. & Chokri, B. Reliability prediction of the stress concentration factor using response surface method. Int J Adv Manuf Technol 94, 817–826 (2018). https://doi.org/10.1007/s00170-017-0910-0
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DOI: https://doi.org/10.1007/s00170-017-0910-0