ESMC 2018. Presentation: On how matrix cracking induces delamination under out-of-plane shear: ply-thickness effect

composite-sgarcia-delamination

ESMC 2018. Presentation: On how matrix cracking induces delamination under out-of-plane shear: ply-thickness effect

Santiago García has been in the ESMC 2018 – 10th European Solid Mechanics Conference, held in Bologna (Italy) from July 2 to 6 presenting a contribution by S.M. García-Rodríguez, J. Costa, V. Singery and A. Sasikumar named On how matrix cracking induces delamination under out-of-plane shear: ply-thickness effect. A nice opportunity to share the gained knowledge and find synergies.

Title On how matrix cracking induces delamination under out-of-plane shear: ply-thickness effect
Authors: S.M. García-Rodríguez, J. Costa, V. Singery, A. Sasikumar
Summary: We compared the damage sequence and interlaminar shear strength of [45°/0°/-45°/90]ns short-beam specimens manufactured with thin- (n = 4) or standard-ply (n = 2) non-crimp fabrics (fibre areal weights of 67 and 134 gsm per ply). We observed that a matrix crack tunneling in the 90° ply-cluster at the mid-plane (a) induced further delamination (b) onset catastrophic failure. The resistance of such cluster depends on ply-thickness thickness because of the in-situ effect under out-of-plane shear: the thinner plies supported a more than 30% higher maximum load.

 

Project and Finding

  • 2015-CHO-01 project and the financial support of the FI grant 2018FI_B2_00113