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  • 1
    Online Resource
    Online Resource
    EDP Sciences ; 2018
    In:  Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University Vol. 36, No. 6 ( 2018-12), p. 1202-1208
    In: Xibei Gongye Daxue Xuebao/Journal of Northwestern Polytechnical University, EDP Sciences, Vol. 36, No. 6 ( 2018-12), p. 1202-1208
    Abstract: 压力管道在航空、航天、机械工程、工业与民用建筑领域以及其他领域有着广泛的应用,失稳屈曲是其主要失效形式之一。首先将复杂的流固耦合问题简化为2种管壁应力作用下的管道屈曲问题。这2种应力是指:垂直于管壁的压应力和平行于管壁的切应力。其次,采用有限元方法分析了压力管道工作状态和非工作状态的屈曲性能。通过求解和分析,得出以下主要结论:第一,切应力不变,随着压应力的增大特征值屈曲临界载荷增大,而非线性屈曲临界载荷减小。第二,压应力不变,切应力与轴向压力方向相同时,随着切应力绝对值增大,屈曲临界载荷减小;切应力与轴向压力方向相反时,随着切应力绝对值增大,屈曲临界载荷增大。
    Type of Medium: Online Resource
    ISSN: 1000-2758 , 2609-7125
    Language: English
    Publisher: EDP Sciences
    Publication Date: 2018
    detail.hit.zdb_id: 2486045-1
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