Mechanical Engineering Exam > Mechanical Engineering Questions > The neutral axis of a beam is subjected to __...
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The neutral axis of a beam is subjected to _________ stress.
- a)Zero
- b)Maximum tensile
- c)Minimum tensile
- d)Maximum compressive
Correct answer is option 'A'. Can you explain this answer?
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The neutral axis of a beam is subjected to _________ stress.a)Zerob)Ma...
The neutral axis is an axis in the cross-section of a beam (a member resisting bending) or shaft along which there are no longitudinal stresses or strains. If the section is symmetric, isotropic and is not curved before a bend occurs, then the neutral axis is at the geometric centroid. All fibers on one side of the neutral axis are in a state of tension, while those on the opposite side are in compression.
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The neutral axis of a beam is subjected to _________ stress.a)Zerob)Ma...
Neutral Axis Stress in a Beam
The neutral axis of a beam is a specific axis within the beam where the stress is zero. This means that at the neutral axis, the material is not experiencing any tensile or compressive stress.
Explanation
- When a beam is subjected to bending, the top fibers of the beam experience tensile stress while the bottom fibers experience compressive stress.
- The neutral axis is the line within the beam where the stress transitions from tensile to compressive, and at this point, the stress is zero.
- This is because the neutral axis is at a distance from the centroid of the beam where the bending moment is zero, resulting in no stress being developed at that point.
- Therefore, the correct answer to the question is option 'A', which states that the neutral axis of a beam is subjected to zero stress.
In conclusion, understanding the concept of the neutral axis in a beam is essential in analyzing the distribution of stress within the beam under bending loads.
The neutral axis of a beam is a specific axis within the beam where the stress is zero. This means that at the neutral axis, the material is not experiencing any tensile or compressive stress.
Explanation
- When a beam is subjected to bending, the top fibers of the beam experience tensile stress while the bottom fibers experience compressive stress.
- The neutral axis is the line within the beam where the stress transitions from tensile to compressive, and at this point, the stress is zero.
- This is because the neutral axis is at a distance from the centroid of the beam where the bending moment is zero, resulting in no stress being developed at that point.
- Therefore, the correct answer to the question is option 'A', which states that the neutral axis of a beam is subjected to zero stress.
In conclusion, understanding the concept of the neutral axis in a beam is essential in analyzing the distribution of stress within the beam under bending loads.
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The neutral axis of a beam is subjected to _________ stress.a)Zerob)Maximum tensilec)Minimum tensiled)Maximum compressiveCorrect answer is option 'A'. Can you explain this answer?
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