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LIMIT ANALYSIS OF PAD REINFORCEMENT OF CYLINDRICAL SHELLS WITH LARGE OPENING
Author(s): 
Pages: 29-34
Year: Issue:  1
Journal: JOURNAL OF NANJING UNIVERSITY OF CHEMICAL TECHNOLOGY

Keyword:  大开孔补强圈补强极限分析爆破试验;
Abstract: 对圆筒形薄壁容器开孔率大于0.5时采用补强圈补强之后的结构进行了极限分析.用两倍弹性斜率法、双切线法分别确定了内压作用下该补强结构的极限载荷,同时,由爆破试验得出其爆破压力并与无补强圈补强的结构进行了比较.结果表明,所研究的薄壁容器(d/D≥0.5)的补强圈补强结构,无论是筒体还是接管,其横向对称面上的极限载荷均大于纵向对称面上的极限载荷.结果还表明,补强圈补强结构有效地提高了圆柱壳大开孔结构的极限载荷值及爆破压力,具有明显的补强效果.
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