In this contribution, the impact damage modes of a new class of hybrid systems, obtained by the coupling of polypropylene (PP)-based laminates with different interlaminar interface strength and coded as interlaminar-graded interphase strength (IGIS) laminated structures, have been investigated. Several specimens were fabricated by suitably alternating the reinforcement layers with films of the matrix having different intrinsic natures; some specimens were impacted at two energies. All the specimens (impacted or not) have been nondestructively evaluated with lock-in thermography (LT) that is a noncontact, noninvasive technique [10]. The obtained results have been analysed to obtain information on the role played by both the matrix and fibre-stacking sequence on the damage modes, as well as on the overall damage relevance.
Lock-in thermography for investigation of impact damage in hybrid polypropylene/glass composites
IEEE Aerospace and Electronic Systems Magazine ; 31 , 2 ; 26-30
01.02.2016
1968419 byte
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch