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Types of Deformation

Elastic Deformation
Elastic Deformation

Elastic deformation refers to a temporary deformation of a material's shape that is self-reversing after removing the force or load. Elastic deformation alters the shape of a material upon the application of a force within its elastic limit.

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Fracture
Fracture

The deformation characteristics of the microseismicity are also important parameters and will ultimately enable calibration and validation of geomechanical models, once the context of the microseismic deformation is properly set in view of the overall hydraulic fracture deformation.

Plastic Deformation
Plastic Deformation

Plastic deformation is a process in which permanent deformation is caused by a sufficient load. It produces a permanent change in the shape or size of a solid body without fracture, resulting from the application of sustained stress beyond the elastic limit.

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True Stress and Strain
True Stress and Strain

True stress is the applied load divided by the actual cross-sectional area (the changing area with respect to time) of the specimen at that load Engineering strain is the amount that a material deforms per unit length in a tensile test.

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