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Difficulty: MediumTypes of Stress and Strain

In structural mechanics, strain is defined as the internal force per unit area that a material exerts to resist an applied load, whereas stress is the physical deformation or change in dimensions resulting from that applied force.

Answer: Answer

Answer

False
The statement is false because it completely reverses the engineering definitions. In mechanical comprehension, stress is the internal resisting force per unit area within a material caused by an external load. Strain, on the other hand, is the physical deformation, stretching, or change in dimensions that occurs as a response to that stress.

Step-by-Step Solution

1
Analyze the definition provided for strain in the statement.
The statement claims strain is the 'internal force per unit area'.
To verify if the first half of the statement is factually accurate.
2
Analyze the definition provided for stress in the statement.
The statement claims stress is the 'physical deformation or change in dimensions'.
To verify if the second half of the statement is factually accurate.
3
Compare the provided definitions with established mechanical principles.
The definitions are completely reversed. Stress is the force per unit area, and strain is the resulting deformation.
To determine the final truth value of the entire statement.

Key Concept

Distinguishing Stress and Strain
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Topics

Types of Stress and Strain

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