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Questions and Answers
When a solid body is deformed by an applied force and does not return to its original shape and size after the force is removed, what type of deformation is it called?
What law describes the linear relationship between stress and strain for an elastic material?
What property is exhibited by putty and mud when subjected to force?
In engineering design, knowledge of the elastic properties of materials like steel and concrete is essential for designing which of the following?
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What is the restoring force per unit area known as when a body is subjected to a deforming force?
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What is the SI unit of stress?
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What change in dimensions does a body undergo when an external force acts on it?
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Study Notes
Deformation of Solids
- When a solid body is deformed by an applied force and does not return to its original shape and size after the force is removed, it is called plastic deformation.
Elastic Materials
- Hooke's Law describes the linear relationship between stress and strain for an elastic material.
Properties of Materials
- Putty and mud exhibit plasticity when subjected to force.
Engineering Design
- Knowledge of the elastic properties of materials like steel and concrete is essential for designing structures.
Restoring Force
- The restoring force per unit area when a body is subjected to a deforming force is known as stress.
Units of Stress
- The SI unit of stress is the pascal (Pa).
Deformation
- When an external force acts on a body, it undergoes a change in dimensions.
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Description
Test your knowledge of mechanical properties with this quiz covering topics like stress, strain, Hooke’s law, stress-strain curve, elastic moduli, and applications of elastic behavior of materials. This quiz also includes summary, points to ponder, and exercises for a comprehensive review.
