Elasticity and Plasticity in Materials
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Questions and Answers

What is the term used to describe a material that does not return to its original shape after deformation?

  • Elasticity
  • Compression
  • Rigidity
  • Plasticity (correct)

What type of deformation occurs when an object returns to its original shape after the removal of an applied force?

  • Permanent deformation
  • Inelastic deformation
  • Elastic deformation (correct)
  • Plastic deformation

Which of the following materials is likely to exhibit plastic behavior?

  • Putty (correct)
  • Glass
  • Steel
  • Rubber

Why is understanding elasticity important in engineering design?

<p>To allow structures to return to their original shape after stress (A)</p> Signup and view all the answers

What defines a rigid body?

<p>A body with a defined shape and size (A)</p> Signup and view all the answers

Flashcards

Plastic material

A material that does not return to its original shape after deformation.

Elastic deformation

Deformation that returns to initial shape after force removal.

Plastic behavior example

A material like putty exhibits plastic behavior.

Importance of elasticity in design

Structures must return to original shape after stress.

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Rigid body

A body with unchanged shape and size under stress.

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Study Notes

Elasticity and Plasticity

  • Solids can be deformed by applying forces
  • Elasticity: The ability of a material to return to its original shape and size after the force is removed
  • Elastic deformation: The deformation that occurs when a material is elastic
  • Plasticity: The property of substances to permanently deform when a force is applied.
  • Plastic substances do not regain their original shape and size after the force is removed.
  • Elastic behavior of materials is essential in engineering design.
  • The design of structures, like bridges, cars, and ropeways, depends on the elastic properties of materials.

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Description

This quiz covers the concepts of elasticity and plasticity in materials, focusing on how solids deform under stress. Learn about the differences between elastic and plastic deformation, along with their relevance in engineering design for structures like bridges and cars.

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