Numerical analysis of face sheet buckling for a CFRP/Nomex honeycomb sandwich panel subjected to bending loading

The objective of this study is to establish a bending strength prediction method for a thin CFRP face sheet/Nomex honeycomb sandwich panel, for which the failure mode is face-sheet/core debonding derived from local buckling of the face sheet. Stress and buckling eigenvalue analyses were conducted using a detailed core model reproducing honeycomb structure and a solid core model in which the core was homogenized as solid elements. In both the...