Concept explainers
Whether the elastic modulus of material decreases or increases with increase in temperature.
Answer to Problem 1CQ
The elastic modulus of material decreases with increase in temperature
Explanation of Solution
Elastic modulus can be defined as the ratio of applied stress to the obtained strain in the body up to proportional limit. Elastic modulus can also be defined as the slope of curve for applied stress versus strain in specimen up to the elastic limit of material.
Elastic modulus is a
When the temperature increases, the distance between the atoms in the material increases and they move farther from each other. Increasing temperature reduces the strength of material and its elastic modulus.
Conclusion:
Thus, the elastic modulus of material decreases with increase in temperature
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Chapter 9 Solutions
Materials Science And Engineering Properties
- Materials Science And Engineering PropertiesCivil EngineeringISBN:9781111988609Author:Charles GilmorePublisher:Cengage Learning