An analytical investigation of the problem of the indentation of composite sandwich beams with partially delaminated face sheets is presented in this paper. A model has been formulated that represents the damaged face as an elastic beam resting on an elastic-perfectly plastic foundation. The results show the influence of the damaged area on the behavior of the system: the indentation load is lower than that of an intact beam and the reduction is more important on increasing the number of delaminations or their lengths; the critical load for progressive yielding of the core is also affected by the presence of a damaged area whose influence decreases on increasing the size of the plastic zone.

Influence of skin damage on the indentation behavior of sandwich beams

CAMPI, FRANCESCA;MASSABO', ROBERTA
2008-01-01

Abstract

An analytical investigation of the problem of the indentation of composite sandwich beams with partially delaminated face sheets is presented in this paper. A model has been formulated that represents the damaged face as an elastic beam resting on an elastic-perfectly plastic foundation. The results show the influence of the damaged area on the behavior of the system: the indentation load is lower than that of an intact beam and the reduction is more important on increasing the number of delaminations or their lengths; the critical load for progressive yielding of the core is also affected by the presence of a damaged area whose influence decreases on increasing the size of the plastic zone.
2008
9789728953232
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11567/239420
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