由于蠕变和应力松弛的影响，粘结层应变不可逆地增加，使TGO层的界面形貌出现起伏。
Impacted by creep and stress relaxation, the strain of bond coat layer increases irreversibly, and the TGO layer convolutes .
运用线性粘弹性理论研究了塑料在微通道成形中的蠕变和应力松弛现象，通过应力松弛实验验证了塑料的应力松弛行为。
This paper applies linear viscoelastic theory to study on the creep and relaxation phenomena and to verify the relaxation behavior through several stress relaxation experiments.
目的：探讨兔挛缩膝关节髌韧带的应力松弛和蠕变特性，为临床治疗提供理论依据。
Objective:To discover the properties of stress relaxation and creep of patellar ligament(PL) on knee contraction in rabbits.
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