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Poisson’s ratio is essential in composite analysis and design. This study presents a novel method for determining the modulus of elasticity and Poisson’s ratio of cocoon waste epoxy composites (CWECs) using FEA, validated through tensile testing. The deformation curve was first established experimentally, followed by Latin Hypercube Sampling (LHS) in MATLAB to generate 20 data pairs, enhancing result reliability. In the subsequent phase, detailed structural models of CWEC were constructed using PowerShape, and simulations were performed in ANSYS to analyze mechanical behavior. Validation was achieved by comparing the simulated deformations with empirical test data, with RMSE used as the primary accuracy metric. The results yielded an RMSE of 0.2181, indicating a strong correlation between the FEA model and experimental observations. This confirms the reliability of the derived values for modulus of elasticity (565.57 MPa) and Poisson’s ratio (0.4564). Further validation of Poisson’s ratio for CWEC was conducted by comparing the simulation outcomes with experimental data in accordance with ASTM standards. The findings revealed a high degree of correlation between the two methods, with a similarity of 94.21%.

open engineering

Sustainable cocoon waste epoxy composite solutions: Novel approach based on the deformation model using finite element analysis to determine Poisson’s ratio