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本文用纯弯曲试件,进行了不同高应力水平下受拉徐变破坏试验。得到了应力水平与试件破坏时间的关系,测得了试件的弯曲受拉徐变变形过程,给出了徐变变形的数学表达式,同时,计算了弯曲受拉徐变损伤值。
In this paper, pure bending specimens were used to perform tension and creep failure tests under different levels of high stress. The relationship between the stress level and the failure time of the specimen was obtained. The bending and tension deformation of the specimen was measured. The mathematical expression of the creep deformation was given. At the same time, the creep damage due to bending and tension was calculated.