Bulk strain is
Correct answer: C. 3D
- A. 1D
- B. 2D
- C. 3D
- D. All options are correct
Explanation
Bulk strain, also known as volumetric strain, refers to the change in volume of a material when subjected to uniform pressure in all directions. This is a three-dimensional change, making it appropriate to classify it as 3D strain. Option C is correct because it accurately describes the nature of bulk strain. Option A is incorrect because 1D strain does not involve volume change, only elongation or compression along a single axis. Option B is incorrect because 2D strain refers to changes within a plane and does not account for the volume change in three dimensions. Option D is incorrect because bulk strain is specifically a 3D phenomenon, not applicable to all dimensions.
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