Discussion
Consider the following statements about honeycomb sandwich panels:
1. The facesheets act as the flanges and the core carries the shear.
2. Water ingress into the core is a recognised service problem.
3. The core carries most of the bending stress.
Which of the statements given above is or are correct?
Answer: A
The first two are correct. The third misplaces the load: the core is far too weak to carry direct stress and exists only to hold the facesheets apart and transfer shear between them. That is precisely why it can be so light.
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