【Mechanical Equipment Technology Exchange Edition】Mechanical Equipment 【Daily Question】20190613
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Question: What is the deformation of metal 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
There are two types of material deformation: elastic deformation and plastic deformation. The characteristic of elastic deformation is that deformation occurs when an external force is applied; once the external force is removed, the deformation disappears. In other words, elastic deformation takes place under the influence of an external force, and the object returns to its original state once that force is removed. The characteristic of plastic deformation is that deformation occurs when an external force is applied; once the external force is removed, the deformation remains. In other words, plastic deformation takes place under the influence of an external force, and when that force is gone, the object cannot return to its original state, with some of the deformation remaining as permanent deformation.
It is divided into plastic deformation and elastic deformation. Plastic deformation: Permanent deformation that cannot be reversed in metal parts under the action of external forces. Elastic deformation: The deformation or change in size of a material when subjected to an external force, and the deformation that can be restored is known as elastic deformation.
It is divided into plastic deformation and elastic deformation. Plastic deformation: Permanent deformation that cannot be reversed in metal parts under the action of external forces. Elastic deformation: The deformation or change in size of a material when subjected to an external force, and the deformation that can be restored is known as elastic deformation.
The change in shape and size of a metal under the action of external forces is called deformation. Depending on whether the deformation is restored once the external forces are removed, it can be classified into elastic deformation and plastic deformation. Deformation that can be restored is known as elastic deformation, while deformation that cannot be restored is known as plastic deformation.
It is divided into plastic deformation and elastic deformation. Plastic deformation: Permanent deformation that cannot be reversed in metal parts under the action of external forces. Elastic deformation: The deformation or change in size of a material when subjected to an external force, and the deformation that can be restored is known as elastic deformation.
The changes in size and shape of metal materials under the action of external forces are known as deformation
Elastic deformation: It is a type of deformation that occurs under the action of an external force; if that external force is removed, the object is able to fully return to its original shape and size. Plastic deformation: It is the portion of deformation that occurs in a material under external forces, and remains after those forces are removed, as the material cannot return to its original shape. Creep: It is the slow, permanent deformation of a material under stress. Its occurrence is the result of prolonged exposure to stress below the material’s yield strength.
Elastic deformation and plastic deformation. Elastic deformation can be restored when the external force is removed, while plastic deformation is a permanent change.
The change in size and shape of metal materials under the action of external forces is called deformation. The deformation process of any metal under external forces can be divided into three stages: (1) the elastic deformation stage. That is, under low stress, the amount of deformation increases proportionally with the stress level, and the deformation disappears completely once the stress is removed. ⑵Plastic deformation stage. That is, when the stress exceeds the material’s yield limit, the deformation does not completely disappear after the stress is removed; residual deformation remains, and this residual deformation is plastic deformation. ⑶Break. As the stress continues to increase, the metal fractures after undergoing significant plastic deformation.
Elastic deformation: It is a type of deformation that occurs under the action of an external force; if that external force is removed, the object is able to fully return to its original shape and size. Plastic deformation: It is the portion of deformation that occurs in a material under external forces, and remains after those forces are removed, as the material cannot return to its original shape. Creep: It is the slow, permanent deformation of a material under stress. Its occurrence is the result of prolonged exposure to stress below the material’s yield strength.