Open Access Open Access  Restricted Access Subscription Access

Effect of Low Velocity Impact on the Compressive Load Carrying Capability of Thick Composites

ANDREW A. SEAMONE, PAUL DAVIDSON, ANTHONY M. WAAS, VIPUL RANATUNGA

Abstract


The use of carbon fiber reinforced polymer (CFRP) composites in modern aircraft has become common as a result of the advantage in the strength to weight ratio the material provides. A limitation to using CFRPs on aircraft stem from their low resistance to low velocity impact (LVI) damage. In these instances, LVI causes barely visible impact damage (BVID) such that the indication of impact on the structure is barely noticeable. These impacts have the potential to generate fiber and matrix failure and cause delamination between lamina which ultimately reduces the compressive load carrying capability of the composite. This study performs an experimental analysis on the knockdown in compressive load carrying capability over a range of impact energies that produce BVID on thick composite panels of 40, 48, and 56 plies.


DOI
10.12783/asc37/36428

Full Text:

PDF

Refbacks

  • There are currently no refbacks.