TY - JOUR
T1 - Comparative experimental analysis of the effect caused by artificial and real induced damage in composite laminates
AU - Pérez, Marco A.
AU - Gil, Lluís
AU - Sánchez, Montserrat
AU - Oller, Sergio
N1 - Funding Information:
This work has been supported by the Spanish Ministry of Science and Innovation through RECOMP project Ref. BIA2005-06952 and DELCOM Project Ref. MAT2008-02232/MAT, by the Spanish Ministry of Public Works (Project ”Retrofitting and reinforcement of reinforced concrete structures with composite materials. Numerical and experimental developments applied to joint of bars and composites anchorage proposal”), by AIRBUS (Spain) through the Contract No. PBSO-13-06 FEMCOM and ACCIONA Infraestructuras (Spain) through the project SPHERA. All these support are gratefully acknowledged. Special thanks also to Roger Serra for useful discussions.
PY - 2014/6
Y1 - 2014/6
N2 - This paper presents the results of an extensive experimental campaign aimed to examine the effect upon the vibration response and on the residual load-bearing capacity caused by both: isolated artificially induced interlaminar damage and low-velocity impact induced damage in composite laminates. The experimental programme included modal testing, drop-weight impact testing, ultrasonic inspection, transverse quasi-static loading testing and compression testing conducted on a set of 72 carbon fibre-reinforced composite laminated coupons. Both types of damage caused measurable changes in laminate performance, however marked divergent trends were observed. The results allowed for conclusions to be drawn regarding the adequacy of the artificial damage approach and highlighted the importance and role of other forms of degradation upon damage tolerance of laminated composites containing damage.
AB - This paper presents the results of an extensive experimental campaign aimed to examine the effect upon the vibration response and on the residual load-bearing capacity caused by both: isolated artificially induced interlaminar damage and low-velocity impact induced damage in composite laminates. The experimental programme included modal testing, drop-weight impact testing, ultrasonic inspection, transverse quasi-static loading testing and compression testing conducted on a set of 72 carbon fibre-reinforced composite laminated coupons. Both types of damage caused measurable changes in laminate performance, however marked divergent trends were observed. The results allowed for conclusions to be drawn regarding the adequacy of the artificial damage approach and highlighted the importance and role of other forms of degradation upon damage tolerance of laminated composites containing damage.
KW - Composite laminates
KW - Compression after impact
KW - Experimental modal analysis
KW - Low-velocity impact
KW - Quasi-static loading
KW - Ultrasonic testing
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U2 - 10.1016/j.compstruct.2014.02.017
DO - 10.1016/j.compstruct.2014.02.017
M3 - Article
AN - SCOPUS:84898801394
SN - 0263-8223
VL - 112
SP - 169
EP - 178
JO - Composite Structures
JF - Composite Structures
IS - 1
ER -