High pressure strength of carbon fibre reinforced vinylester and epoxy vessels

作者：Shao Yongzheng; Betti Andrea; Carvelli Valter^*; Fujii Toru; Okubo Kazuya; Shibata Ou; Fujita Yukiko

来源：Composite Structures, 2016, 140: 147-156.

DOI：10.1016/j.compstruct.2015.12.053

• Carbon fibres
• Vinylester
• Epoxy
• Pressure vessel
• Damage
• Burst pressure

High pressure vessels with winding lamination of [90 degrees/+/- 15 degrees] were manufactured adopting a vinylester and an epoxy resin reinforced with carbon fibres. An experimental setup was design to test the vessels up to the burst pressure. The tests results demonstrate a higher ultimate pressure of the carbon/vinylester composite vessel with respect to the epoxy reinforced counterpart. The full field strain measurements by the digital image correlation technique show a delayed of the initiation and propagation of the damage in the carbon/vinylester. Moreover, the carbon/vinylester vessel performed more homogeneous strain distribution with less and shorter hoop cracks than the carbon/epoxy one, as observed also with an X-ray micro tomography system, a laser microscope and a scanning electron microscope.

• 出版日期2016-4-15