The ratio comparing the ultimate tensile strength of steel to its ultimate shear strength is approximately__________________?
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Answer: C. 3 : 2
Explanation
Calculations for structural carbon steels consistently yield an ultimate tensile to shear strength ratio near 1.5. Dividing the typical tensile strength by the corresponding shear strength directly produces the fractional ratio of three halves. Empirical material testing data confirms that ultimate shear strength is roughly two thirds of tensile strength. Ultimate tensile strength measures the maximum stress a material can withstand while being stretched before failing. Ultimate shear strength measures resistance to forces acting parallel to the plane of the resisting material section. Engineering design codes rely on these standard mechanical properties to prevent structural failure under complex loads.
A one to one ratio would imply that structural steel resists tension and shear with identical effectiveness. Other numerical ratios such as two to one or two to three underestimate or overestimate standard steel behavior. An inverse ratio like one to two incorrectly suggests that shear strength vastly exceeds tensile strength.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
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