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本文针对铝内衬全缠绕复合材料天然气气瓶,应用ALGOR FEAS有限元分析系统进行了气瓶材料的弹塑性历程分析,设计了气瓶的预紧压力.采用轴对称的应力-应变关系对气瓶金属内衬、复合材料进行了应力分析,确定了气瓶的应力分布状态.研究表明,通过预紧压力设计,降低了铝内衬工作状态下的最大拉应力,实现了提高复合材料气瓶疲劳寿命的目的.

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