【Mechanical Equipment Technology Exchange Edition】Mechanical Equipment 【Daily Question】20190705
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Question: What is stress relaxation in metallic materials? There are no answers provided for this series of posts; fellow netizens are free to share their own opinions – just reply with what you understand. Replies earn rewards ranging from 5 to 15 points; all forum members are welcome to participate actively and support the development of the forum! ! ! Chemical Equipment and Machinery
The phenomenon in which the stress of a metallic material decreases over time under specified temperature and constraint conditions
The phenomenon in which the stress of a metallic material decreases over time under specified temperature and constraint conditions
The phenomenon in which the stress of a metallic material decreases over time under specified temperature and constraint conditions
The phenomenon in which the stress of a metallic material decreases over time under specified temperature and constraint conditions
The phenomenon in which the stress of a metallic material decreases over time under specified temperature and constraint conditions
Stress relaxation is a result of the creep, which is an indicator of a material’s mechanical properties at high temperatures. If there are no \"high temperatures\", then creep will not occur, and thus stress relaxation is also impossible
The phenomenon in which, under high temperature and stress conditions, the stress gradually decreases over time while the strain remains constant, is known as stress relaxation.
The phenomenon in which, under high temperature or stress, the stress gradually decreases over time while the strain remains constant is known as stress relaxation
Stress relaxation in metal materials at high temperatures is the result of the elastic deformation induced by the initial stress gradually transforming into plastic deformation.
Stress relaxation refers to the phenomenon in which, while the total deformation of a component (elastic and plastic deformations) remains constant, slow creep causes the plastic deformation to increase continuously, the elastic deformation to decrease accordingly, and the stress to decline slowly over time.