塑性流动的特殊情况是冷变形，发生在硫化橡胶长时间连续承受低应力时以及金属蠕变时。
Special instances of plastic flow are cold flow, which occurs in vulcanized rubber after low stress has been continuously applied for a long time, and creep of metals.
总结归纳了大量金属材料低温蠕变的数据，为选择低温结构材料提供了依据。
A great deal of date of metal materials cryogenic creep have been summarized for selecting constrtion materials at low temperature.
本文对金属构件的损伤变量定义及典型的蠕变损伤模型作了总结，并概述了目前一些有代表性的蠕变损伤模型的研究工作。
This paper presents a review of the research on the description of the damage and damage models for metal materials and also discusses them respectively.
这些工作主要讨论了金属泡沫材料的拉伸、压缩、能量吸收、动态冲击、失效准则、本构关系、蠕变、疲劳和断裂等力学性能。
They are mainly concerned with the tensile and compressive behavior, energy absorption, dynamic impact, failure criterion and constitutive relation, creep, fatigue and fracture of these materials.
当金属在高温下受到应力时，就会发生蠕变。
Metals tend to creep when they are subjected to stress at high temperatures.
蠕变是金属材料的重要现象，其机理及本构方程的研究则是其重要的研究领域。
Creep is an important phenomenon for metallic materials. The research on its mechanism and its constitutive equation is also an important area.
需要适当的程间温度和正确选择填充金属材料来防止冷热裂缝，产生适当的蠕变阻力和韧性。
The proper interpass temperature is required to prevent cold and hot cracking as well as the proper selection of welding filler material, to produce the proper creep resistance and toughness.
在试验研究中本文考虑了各种金属在恒应力与变应力下的行为，应力集中，加载方式对蠕变破坏的影响；
In experimental studies the authors considered the behaviour of various metals under constant and variable stresses, stress concentration, influence of way of loading on creep rupture;
在工业生产过程中，许多设备长期处于高温工况，金属材料极易发生蠕变。
A lot of industrial equipment are in operation under high temperature condition. So the metal materials are easy to cause creeping.
针对金属材料在较高应力下没有蠕变稳定阶段的现象，提出了金属材料高低应力值的判定准则并根据高低应力的不同特点推导了不同的耦合损伤本构模型。
It has been find that there is no the second stage of creep when material under the condition of higher stress. Then judgment criterion has been proposed to deal with that phenomenon.
这些工作主要讨论了金属泡沫材料的拉伸、压缩、能量吸收、动态冲击、失效准则、本构关系、蠕变、疲劳和断裂等力学性能 。
The dynamic impact energies of 16MnR welded joints were determined with high speed impact test, and the influencing factors and fracture morphology were studied.
这些工作主要讨论了金属泡沫材料的拉伸、压缩、能量吸收、动态冲击、失效准则、本构关系、蠕变、疲劳和断裂等力学性能 。
The dynamic impact energies of 16MnR welded joints were determined with high speed impact test, and the influencing factors and fracture morphology were studied.
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