Damage characteristics and residual strength of composite sandwich panels impacted with and without a compression loading | Zendy

David McGovan | Zendy; Damodar Ambur | Zendy

Open Access

Damage characteristics and residual strength of composite sandwich panels impacted with and without a compression loading

Author(s) -

David McGovan,

Damodar Ambur

Publication year - 1998

Publication title -

39th aiaa/asme/asce/ahs/asc structures, structural dynamics, and materials conference and exhibit

Language(s) - English

Resource type - Conference proceedings

DOI - 10.2514/6.1998-1783

Subject(s) - composite number , residual strength , compression (physics) , materials science , residual , composite material , structural engineering , computer science , engineering , algorithm

The results of an experimental study of the impact damage characteristics and residual strength of composite sandwich panels impacted with and without a compression loading are presented. Results of impact damage screening tests conducted to identify the impact-energy levels at which damage initiates and at which barely visible impact damage occurs in the impacted facesheet are discussed. Parametric effects studied in these tests include the impactor diameter, dropped-weight versus airgun-launched impactors, and the effect of the location of the impact site with respect to the panel boundaries. Residual strength results of panels tested in compression after impact are presented and compared with results of panels that are subjected to a compressive preload prior to being impacted.

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