Acoustic Emission Characterization of Matrix Damage Initiation in Woven CFRP Composites

Autor:	Adnan Khan, Wail Harasani, Salah A. Badr, Mostefa Bourchak
Rok vydání:	2013
Předmět:	Matrix damage Materials science Acoustic emission Crack initiation Ultimate tensile strength Cross ply Fibre-reinforced plastic Composite material Static loading Characterization (materials science)
Zdroj:	Materials Sciences and Applications. :509-515
ISSN:	2153-1188 2153-117X
DOI:	10.4236/msa.2013.49062
Popis:	In this paper, an experimental investigation is performed using acoustic emission (AE) technique to study the behaviour of crack initiation and propagation of woven carbon fibre reinforced plastic (CFRP) composites under static tensile loading. Three laminates with three plies each were manufactured and tested under tensile static loading. Damage was being monitored using AE technique with instantaneous AE hits energies being used as the damage parameter. Results showed that angle ply laminates experienced crack initiations at about 50% of ultimate tensile strength whereas cross ply laminates and non-conventional angle ply laminates having one cross ply laminate experienced initiation of cracks at about a third of ultimate tensile strength. This early cracks initiation is believed to be caused by the presence of 90° plies that cannot take much load transversely.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a96904c48ea4442b20e8e2b7c01e0d16 https://doi.org/10.4236/msa.2013.49062 Zobrazit plný text záznamu