Question

A cube is subjected to a uniform volume compression. If the side of the cube decreases by 2%, the bulk strain is a

• A. 0.02
• B. 0.03
• C. 0.04
• D. 0.06

Hint:

Bulk strain is the fractional change in volume, which is often approximated as the percentage change in side length for small deformations.

Answer 1

The Correct Option is D

Step 1: Understand bulk strain.
The bulk strain \( \epsilon \) is defined as the fractional change in volume. For a cube, the change in volume is related to the change in side length.
Step 2: Calculate the bulk strain.
For a decrease in the side of 2%, the bulk strain is equal to the fractional change in volume, which is 0.06. Final Answer: \[ \boxed{0.06} \]