The Plastic Ratcheting of Thin Cylindrical Shells Subjected to Axisymmetric Thermal and Mechanical Loading
The Plastic Ratcheting of Thin Cylindrical Shells Subjected to Axisymmetric Thermal and Mechanical Loading
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轴对称热载荷和机械载荷作用下薄圆柱壳的塑性棘轮
DOI：
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发表时间：
1987
期刊：
影响因子：
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通讯作者：
K. F. Carter
中科院分区：
文献类型：
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作者：
S. Karadeniz;A. Ponter;K. F. Carter
本文讨论了受剧烈热载荷作用的薄圆柱壳材料性能与结构棘轮的关系。在设计钠冷却快堆时，需要了解这个问题。利用有限单元技术[13]给出了一系列安定解。结果表明，对于受移动温度场影响的管材，即使在没有施加机械载荷且材料强烈循环硬化的情况下，棘轮也会发生。只需要很小的动作。静止的热循环不太可能产生棘轮。计算结果与两组实验数据进行了比较，证实了上述结论。
The paper discusses the relationship between material properties and structural ratcheting for thin cylindrical shells subjected to severe thermal loading. The need to understand this problem arises in the design of Sodium Cooled Fast Reactors. A sequence of shakedown solutions are presented using a finite element technique [13] . It is shown that for tubes subject to moving temperature fields, ratcheting can occur even when no mechanical loads are applied and the material strongly cyclically hardens. Only small movements are required. Stationary thermal cycling is less likely to produce ratcheting. The calculations are compared with two sets of experimental data, which serve to confirm these conclusions.