航天推进技术研究院主办
CHEN Jun-jun,TIAN Gui,SHEN Jun,et al.Analysis on autofrettage of filament-wound composite cylinder[J].Journal of Rocket Propulsion,2014,40(03):57-62.
“柱形”铝内衬纤维缠绕复合材料气瓶自紧分析
- Title:
- Analysis on autofrettage of filament-wound composite cylinder
- 分类号:
- V434+.23-34
- 文献标志码:
- A
- 摘要:
- 自紧是纤维缠绕复合材料气瓶加工成型过程中的关键工序,其自紧压力大小直接影响气瓶的承压能力及疲劳寿命。本文基于复合材料层合板理论及各向同性材料弹塑性理论,采用ANSYS有限元分析软件,建立各向同性金属材料及各向异性复合材料层的有限元分析模型,对航天用53 L“柱型”铝内衬纤维缠绕复合材料气瓶进行自紧分析,研究自紧压力对气瓶铝内衬和纤维缠绕层受力状态的影响,确定气瓶最佳自紧压力。研究表明,自紧处理能显著降低气瓶铝内衬在工作压力下的最大拉应力,扩大其弹性工作范围,提高疲劳性能。
- Abstract:
- As the key procedure of filament-wound composite cylinder processing, the auto- frettage pressure directly affects the bearing capacity and the fatigue life of the cylinder. Based on laminated plate theory and isotropic material elastic-plastic theory, a finite element analysis model of isotropic metal and anisotropic composite laminated plate is set up, and autofrettage analysis of 53 L filament-wound composite cylinder with aluminum liner in aerospace application is carried out by means of finite element analysis software ANSYS. The influence of autofrettage pressure on stress states of aluminum liner and filament wound layer was studied and optimal autofrettage pressure was established. The result indicates that autofrettage technology can decrease the maximum tensile stress of aluminum liner significantly in working conditions, enlarge elastic working range and improve the fatigue resistance of the composite cylinder.
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相似文献/References:
[1]晏 飞.纤维缠绕/金属内衬复合材料气瓶应力分析[J].火箭推进,2011,37(01):46.
YAN Fei.Stress analysis of filament-wound composite gas cylinders with metal liner[J].Journal of Rocket Propulsion,2011,37(03):46.
备注/Memo
收稿日期:2013-12-06;修回日期:2014-01-20 作者简介:陈军军(1985—),男,硕士,研究领域为航天压力容器设计