Inspired by the Parker solar probe’s heat shield, a carbon-carbon semi-auxetic laminate sandwiching a lightweight carbon auxetic core has been designed in this work. The fracture and fatigue crack propagation in 2D and 3D auxetic core at ambient and extreme temperatures have been predicted and compared with conventional honeycomb cores and foams. Comparative studies have been performed between the results obtained by in-house codes of phase-field fracture (PFF) in FEniCS and the extended finite element method (XFEM) in ABAQUS™.
EXTENDED ABSTRACT