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Question
Long answer type question.
Define stress and strain. What are their different types?
Solution
- Stress:
- The internal restoring force per unit area of a body is called stress.
`"Stress" = "deforming force"/"area" = |vec"F"|/"A"`
where `vec"F"` is internal restoring force or external applied deforming force. - Types of stress:
i. Longitudinal stress,
ii. Volume stress,
iii. Shearing stress
- Strain:
- Strain is defined as the ratio of change in dimensions of the body to its original dimensions.
`"Strain" = "change in dimensions"/"original dimensions"` - Types of strain:
i. Longitudinal strain,
ii. Volume strain,
iii. Shearing strain.
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