Development of an Analytical Model to Predict Stress–Strain Curves of Short Fiber-Reinforced Polymers with Six Independent Parameters

Mechanical properties of fiber-reinforced polymers are sensitive to environmental influences due the presence polymer matrix but inhomogeneous and anisotropic fibers. Hence, structural analysis with mechanical as a function loading, environment, design, material condition produces more precise, reliable, economic structures. In present study, an analytical model is developed that can predict engineering values well non-linear stress–strain curves six independent parameters for short manufactured by injection molding. These strain, temperature, humidity, fiber content, orientation, thickness specimen. A three-point test each parameter used obtain experimental data. To insert effect in-homogenous distribution fibers in model, microCT done. Similarly, dynamic thermal (DMTA) done viscoelastic material. The least mean square regression method empirical formulas. standard error fitting closely controlled below 2% stress range. This study provides user-specific data simulations specific material, conditions.