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Two kinds of deformation are plastic deformation, where the material changes shape permanently due to stress, and elastic deformation, where the material returns to its original shape after stress is removed.

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How do brittle objects undergo plastic deformation?

Brittle objects typically do not undergo plastic deformation due to their inability to sustain significant deformation before fracturing. Instead, brittle materials tend to fracture with minimal or no plastic deformation.


What is the plastic deformation formula used to calculate the extent of permanent deformation in a material under stress?

The plastic deformation formula used to calculate the extent of permanent deformation in a material under stress is typically represented by the equation: ( / E), where is the strain (deformation), is the stress applied to the material, and E is the material's Young's modulus.


What are different modes of deformation that occur in compression testing?

In compression testing, common modes of deformation include elastic deformation where the material regains its original shape after the load is removed, plastic deformation where the material undergoes permanent deformation, and fracture where the material fails. Additionally, shear deformation may occur in some materials where layers slide past each other under the compressive force.


What is the difference between elastic deformation and ductile deformation?

Elastic deformation is reversible and occurs when a material is stretched but returns to its original shape once the stress is removed. Ductile deformation, on the other hand, is permanent and occurs when a material is stretched beyond its elastic limit, resulting in plastic deformation that changes the material's shape permanently.


What s the deformation of a solid due to an applied force?

When a force is applied to a solid, it can cause deformation by changing the shape or size of the material. This deformation can be elastic, where the material returns to its original shape after the force is removed, or plastic, where the material retains some of the deformation even after the force is removed. The amount of deformation depends on the material's properties and the magnitude of the applied force.