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Shear stress distribution on the cross-section of the coil wire in a helical compression spring is shown in the figure. This shear stress distribution represents  
  • a)
    direct shear stress in coil wire cross-section
  • b)
    combined direct shear and torsional shear stress in the coil wire cross-section
  • c)
    combined direct shear and torsional shear stress along with the effect of stress concentration at inside edge of the coil wire cross-section
  • d)
    torsional shear stress in the coil wire cross-section 
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
Shear stress distribution on the cross-section of the coil wire in a h...
Shear Stress Distribution in a Helical Compression Spring

Introduction:
A helical compression spring is a mechanical device used to store energy and provide resistance when compressed. It is commonly used in various applications such as suspension systems, shock absorbers, and mechanical devices requiring elasticity. In a helical compression spring, the cross-section of the coil wire experiences shear stress due to the compression forces acting on it.

Shear Stress Distribution:
The shear stress distribution on the cross-section of the coil wire in a helical compression spring is shown in the figure. This distribution represents the combined direct shear and torsional shear stress in the coil wire cross-section.

Explanation:
When a helical compression spring is subjected to a compressive load, the individual coils of the spring deform and experience both direct shear and torsional shear stress. The direct shear stress is caused by the shearing forces acting perpendicular to the coil wire cross-section, while the torsional shear stress is caused by the twisting or torsion of the coil wire.

The shear stress distribution in the figure shows that the maximum shear stress occurs at the inside edge of the coil wire cross-section. This is due to the stress concentration effect caused by the curvature of the coil wire. The inside edge experiences higher stress compared to the outer edges of the coil wire.

The shear stress distribution represents the combined effect of both direct shear and torsional shear stress, taking into account the stress concentration at the inside edge of the coil wire cross-section. Therefore, option 'B' is the correct answer.

Conclusion:
In a helical compression spring, the shear stress distribution on the cross-section of the coil wire represents the combined direct shear and torsional shear stress. This distribution takes into account the effect of stress concentration at the inside edge of the coil wire cross-section. Understanding the shear stress distribution is important for designing and analyzing helical compression springs to ensure their structural integrity and performance.
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Community Answer
Shear stress distribution on the cross-section of the coil wire in a h...
Spring is subjected to : 
1. Direct shear stress due to load.  
2. Torsional shear stress due to load.  
3. Shear stress due to curvature at inside edge of coil.
Hence, the correct option is (B). 
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Shear stress distribution on the cross-section of the coil wire in a helical compression spring is shown in the figure. This shear stress distribution represents a)direct shear stress in coil wire cross-sectionb)combined direct shear and torsional shear stress in the coil wire cross-sectionc)combined direct shear and torsional shear stress along with the effect of stress concentration at inside edge of the coil wire cross-sectiond)torsional shear stress in the coil wire cross-sectionCorrect answer is option 'B'. Can you explain this answer?
Question Description
Shear stress distribution on the cross-section of the coil wire in a helical compression spring is shown in the figure. This shear stress distribution represents a)direct shear stress in coil wire cross-sectionb)combined direct shear and torsional shear stress in the coil wire cross-sectionc)combined direct shear and torsional shear stress along with the effect of stress concentration at inside edge of the coil wire cross-sectiond)torsional shear stress in the coil wire cross-sectionCorrect answer is option 'B'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Shear stress distribution on the cross-section of the coil wire in a helical compression spring is shown in the figure. This shear stress distribution represents a)direct shear stress in coil wire cross-sectionb)combined direct shear and torsional shear stress in the coil wire cross-sectionc)combined direct shear and torsional shear stress along with the effect of stress concentration at inside edge of the coil wire cross-sectiond)torsional shear stress in the coil wire cross-sectionCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Shear stress distribution on the cross-section of the coil wire in a helical compression spring is shown in the figure. This shear stress distribution represents a)direct shear stress in coil wire cross-sectionb)combined direct shear and torsional shear stress in the coil wire cross-sectionc)combined direct shear and torsional shear stress along with the effect of stress concentration at inside edge of the coil wire cross-sectiond)torsional shear stress in the coil wire cross-sectionCorrect answer is option 'B'. Can you explain this answer?.
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