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研究了碳纤维/环氧复合材料φ150mm和φ480mm压力容器封头的局部补强方法和工艺,试验结果表明:φ480mm压力容器经在大金属件边缘补强后改变了水压爆破时金属件飞出的现象,纤维强度得以充分发挥而使筒身段纵环向同时破坏;φ150mm压力容器的应力平衡系数可由0.75提高到0.85以上,筒身段纵向纤维发挥强度由2090MPa提高到2336MPa,提高约11.8%。由此可见,壳体铺层设计与封头补强巧妙地结合是壳体优化设计的重要方法,是充分发挥纵向纤维强度的有效措施。
The local reinforcement method and technology of φ150mm and φ480mm pressure vessel head of carbon fiber / epoxy composites were studied. The experimental results show that the φ480mm pressure vessel changed the metal part fly-out after the hydraulic blasting by the edge of the big metal part Phenomenon, the fiber strength can be fully exerted to make the longitudinal section of the barrel section destroyed at the same time; the stress balance coefficient of φ150mm pressure vessel can be increased from 0.75 to above 0.85; the longitudinal fiber play strength of the barrel section increases from 2090MPa to 2336MPa, .8%. Thus it can be seen that the combination of shell ply design and head reinforcement is an important method for the optimal design of the shell and is an effective measure to give full play to the longitudinal fiber strength.