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The net area of round bars to resist the tension, is the area of the cross-section at
- a)mid-section
- b)the root of the thread
- c)difference of mid-section and root of the thread
- d)None of these
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
The net area of round bars to resist the tension, is the area of the ...
The net tensile area at threads may be taken as the area corresponding to the root diameter at the thread.
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Note: The shearing of rods can take place in the threaded portion of the rod and so the area at the root of the threads, also called the tensile stress area. Since threads can occur in the shear plane, the area for resisting shear should normally be taken as the net tensile stress area, ATnet, of the bars.
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The net area of round bars to resist the tension, is the area of the ...
The net area of round bars to resist the tension is the area of the cross-section at the root of the thread.
Explanation:
When a round bar is subjected to tension, the material experiences stress at the root of the thread. This is because the area at the root of the thread is the smallest in the cross-section of the bar. The thread root is the point where the thread groove meets the cylindrical surface of the bar. The cross-sectional area at the thread root is less than the mid-section of the bar.
The net area of the cross-section at the root of the thread is the actual area that resists the tension. This is because the stress is maximum at this point and the material is likely to fail at this point. The thread root is also the point where the stress concentration is maximum. Hence, the net area of the cross-section at the root of the thread is used to calculate the tensile strength of the bar.
Therefore, the correct answer is option B - the net area of the round bar to resist the tension is the area of the cross-section at the root of the thread.
Explanation:
When a round bar is subjected to tension, the material experiences stress at the root of the thread. This is because the area at the root of the thread is the smallest in the cross-section of the bar. The thread root is the point where the thread groove meets the cylindrical surface of the bar. The cross-sectional area at the thread root is less than the mid-section of the bar.
The net area of the cross-section at the root of the thread is the actual area that resists the tension. This is because the stress is maximum at this point and the material is likely to fail at this point. The thread root is also the point where the stress concentration is maximum. Hence, the net area of the cross-section at the root of the thread is used to calculate the tensile strength of the bar.
Therefore, the correct answer is option B - the net area of the round bar to resist the tension is the area of the cross-section at the root of the thread.
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