作者: William Harris , Constantinos Soutis , Matthieu Gresil , Christopher Atkin
DOI: 10.1016/J.IJLMM.2020.06.002
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摘要: Abstract This paper presents the results of drop-weight impact (5 J–150 J), quasi-static indentation, and post-impact internal pressure testing a ±55°, filament-wound, glass fibre reinforced epoxy (GRE) pipe. The void content in tested pipes was quantified by optical stereo microscopy image analysis ranged from 5% to approximately 13%. found not influence damage area, or observed mechanisms, following loading. However, greatly affect tolerance pipe during an impact. It is established that area alone enough determine reduction failure performance under pressure. After impacts at low energies, number surpassed operating pressurisation (no leakage occurred). In these instances, industry accepted regression gradient used pipe's residual life, which estimated service life 20 years less than two years. indentation confirmed energy behaviour (