Development of a new generation of filament wound composite pressure cylinders
Development of a new generation of filament wound composite pressure cylinders
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DOI：
10.1016/j.compscitech.2008.09.018
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发表时间：
2009-07
影响因子：
9.1
通讯作者：
J. Velosa;J. Nunes;P. Antunes;J. F. Silva;A. Marques
中科院分区：
文献类型：
--
作者：
J. Velosa;J. Nunes;P. Antunes;J. F. Silva;A. Marques
本工作主要研究面向大规模市场应用的新一代复合材料压力容器。容器由热塑性内衬组成，内衬上包裹着缠绕玻璃纤维增强聚合物基体结构的长丝。采用高密度聚乙烯（HDPE）作为衬里，热固性树脂作为基体，制备了玻璃钢缠绕复合材料。采用Abaqus 6.5.1有限元软件包，根据EN 13923标准的要求，对容量约为0.06m （60l）的压力容器在0.6MPa （6bar）压力条件下的力学行为进行了预测，即最小内爆裂压力。Tsai-Wu和Von Mises准则分别用于预测复合材料层合板和热塑性衬垫的失效，考虑了HDPE衬垫的弹塑性行为和从复合材料层合板的微观力学模型中推断的层合板性能。最后，制作了原型压力容器，并在与有限元模拟相似的条件下进行了压力试验。本文讨论了有限元模拟与实验结果的比较。
A new generation of composite pressure vessels for large scale market applications has been studied in this work. The vessels consist on a thermoplastic liner wrapped with a filament winding glass fibre reinforced polymer matrix structure. A high density polyethylene (HDPE) was selected as liner and a thermosetting resin used as matrix in the glass reinforced filament wound laminate. The Abaqus 6.5.1 FEM package was used to predict the mechanical behaviour of pressure vessels with capacity of approximately of 0.06m (60l) for a 0.6MPa (6bar) pressure service condition according to the requirements of the EN 13923 standard, namely, the minimum internal burst pressure. The Tsai-Wu and Von Mises criteria were used to predict composite laminate and thermoplastic liner failures, respectively, considering the elasto-plastic behaviour of the HDPE liner and the laminae properties deducted from micromechanical models for composite laminates. Finally, prototype pressure vessels were produced and submitted to pressure tests in similar conditions to those used in the FEM simulations. The comparison between the FEM simulations and experimental results are discussed in the present paper.