Figure 6
From: Design and fabrication of carbon fiber lattices using 3D weaving
Finite-element (FE) modeling of the carbon fiber/epoxy lattice structures. Hashin damage variables HSNFCCRT (fiber direction compression criterion value), HSNMTCRT (transverse direction tensile damage criterium value), and DMICRTMAXVAL (maximum damage initiation value) are contoured respectively in models 1–3 due to their different failure modes. Red squares denote compressive buckling and cracking in the diagonal struts, yellow squares mean tube transverse tensile failure, and purple squares indicate tube buckling. The bottom row shows the corresponding failure observed in the experimental samples.
