Stages in the deformation process

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SUMMARY

The discussion focuses on the deformation process of materials, specifically differentiating between elastic and viscoelastic materials. Elastic materials return to their original state instantaneously after stress removal, while viscoelastic materials exhibit time-dependent strain and energy losses. The Maxwell model is referenced as a common framework for analyzing viscoelastic behavior, which includes a formula that requires an experimental determination of a material constant alongside Young's modulus.

PREREQUISITES
  • Understanding of Hooke's Law
  • Familiarity with viscoelastic material properties
  • Knowledge of the Maxwell model for viscoelasticity
  • Basic grasp of Young's modulus and material constants
NEXT STEPS
  • Research the Maxwell model in-depth for viscoelastic materials
  • Explore experimental methods for determining material constants
  • Learn about time-dependent strain in viscoelastic materials
  • Investigate applications of viscoelastic materials in engineering
USEFUL FOR

Material scientists, mechanical engineers, and students studying material properties and deformation processes will benefit from this discussion.

DanielAudi
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Elastic materials strain instantaneously when stretched and just as quickly return to their original state once the stress is removed. Viscoelastic materials have elements of both of these properties and, as such, exhibit time dependent strain.

The deformation process involves different stages. I was wondering how do you call the process where the materials return to their orginial state? Just as given in the bold text.
And, moreover, what is the formula which calculates the time it returns back to the orginal state for a random viscoelastic material?

Regards,
Daniel
 
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Hooke's law
 
The answer to your first question: "elastic," or what Nihilist said.

Viscoelastic materials exhibit energy losses and therefore are not "elastic." The Maxwell model is commonly used. In 1D, the "formula" contains one unknown material constant (in addition to Young's modulus) to be found experimentally.
 

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