2026-04-19T11:35:11Zhttps://recercat.cat/oai/request

oai:recercat.cat:10256/260552025-02-04T00:07:04Zcom_2072_452955com_2072_2054col_2072_453061

00925njm 22002777a 4500 dc Sasikumar, Aravind author Trias Mansilla, Daniel author Costa i Balanzat, Josep author Singery, Vicky author Linde, Peter author 2019-07 With aeronautic industries focussing on thinner structures and reducing manufacturing costs, recent research has been dedicated to the impact and post impact response of thin laminates (<2 mm) made of textile fabric composites. A recent study revealed that thin laminates based on thin plies exhibit extensive fibre failure and a reduced compression after impact strength. To mitigate this weakness, we propose a novel laminate concept based on combining plies of different thicknesses in an unsymmetrical configuration (intermediate grade plies are located only at the bottom of the laminate, i.e., the non-impacted face). C-scan inspection on impacted and quasi-statically indented specimens, allowed the damage sequence of the proposed unsymmetrical hybrid laminate to be compared with that of the thin-ply baseline. The hybrid laminate with intermediate plies at the bottom, delayed and reduced the fibre damage, decreased the projected delamination area and led to a 30% increase in the compression after impact strength in contrast to the thin-ply baseline laminate The first author would like to thank the Generalitat de Catalunya for the FI-DGR pre-doctoral grant (2018 FI-B2 00118). his work has been supported by the Spanish Ministerio de Economía y Competitividad through the grant coded MAT2015-69491-C3-1-R, supported by FEDER/E http://hdl.handle.net/10256/26055 Assaigs de materials Materials laminats Mecànica de fractura Materials compostos Materials -- Testing Laminated materials Fracture mechanics Composite materials Mitigating the weak impact response of thin-ply based thin laminates through an unsymmetrical laminate design incorporating intermediate grade plies