Multi-Fiber Unit Cell for Prediction of Residual Stresses in Continuous Fiber Composites

FEM predictions of damage in continous fiber ceramic matrix composites under transverse tension using the crack band method

“…In the past, a single fiber surrounded by matrix material with a fiber volume fraction matching that of the lamina was often used (Berger et al [5], Mahmoodia and Aghdamb [6]). Structured Representative Unit Cells (RUCs) with 2e4 fibers in a hexagonal or square array were investigated by Shoukry et al [7]. The representative unit cell plays a central role in the mechanics and physics of random heterogeneous materials with a view to predicting their effective properties, damage initiation and crack propagation.…”

Transverse Stiffness Prediction of Fibrous Metal Matrix Composites

“…all the points on this face undergo uniform displacement w z = constant. The accuracy of the results predicted by the above FE models has been verified through correlation with both theoretical and experimental data [7].…”

“…A new unit cell model was developed to predict more accurately the residual stresses developed in CFMMCs during their fabrication processes [7]. The model is applicable for any system of continuous fiber reinforced composites, both for predicting processing-induced residual stresses and material properties in the transverse direction.…”

Innovative Structural and Joining Concepts for Lightweight Design of Heavy Vehicle Systems

“…in length, width, and thickness, respectively. The material properties correspond to standard aluminum with a Young's modulus value of 26×10 6 psi and a Poisson's ratio of 0.33.…”