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This figure is discussed in Fig. 6 of the PowerPoint presentation for the AIAA 38th Structures, Structural Dynamics and Materials Conference, AIAA Paper 97-1142.
Shown here are more failure modes pertaining to sandwich wall construction. PANDA2 includes two margins corresponding to the five behaviors depicted here: core tensile failure, and face sheet pull-off.
REFERENCE:
Bitzer, T. N., “Aluminum honeycomb flatwise tensile strengths”, Hexcel Corporation, Dublin, California, Report LSR 932480, January 1988
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