Investigating the Debonding of Aluminum and Carbon Fiber Reinforced Polymer (Al-CFRP) in Type-III Filament-Wound Composite Vessels Subject to Temperature Variations

Abstract:

In this work, nitrogen gas inside cooling experiments of CFRP and GFRP wound composite pressure vessels were carried out. Teflon sheet inserted axisymmetric artificial defects in Al-CFRP interface and without any defect composite vessels were manufactured. Thermocouples were positioned at various points on the exterior of the GFRP hoop surface to track the extent of temperature changes during the cooling test. Destructive cutting and optical microscopy were used to observe the post-cooling Al-CFRP interface morphology at defective locations of composite vessel specimens, revealing the propagation of Al-CFRP interface delamination. Furthermore, a comparative analysis was carried out on an additional set of composite vessels under identical cooling conditions, and a burst test was performed to assess the impact of Al-CFRP debonding on the magnitude of burst pressure. Interestingly, the results indicated no significant difference in the burst pressure between vessels with and without the pre-introduced defect post-cooling.

• Periodical: Materials Science Forum (Volume 1130)
• Pages: 95-102
• DOI: https://doi.org/10.4028/p-7IX8Zr
• Online since: October 2024
• Authors: Md Rahat Al Hassan*, Yoshio Arai, Yuzuki Miyakawa, Wakako Araki, Akimoto Kurosawa, Noriyuki Sasaki, Tomoyuki Ohbuchi, Takafumi Iijima
• Keywords: Al-CFRP Debonding, Axisymmetric Defect, Burst Pressure, Composite Vessel

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