The resultant axial tension acting on a bolt is determined by_______________?
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Answer: E. A, B. and C. above
Explanation
Resultant axial tension in a tightened bolt depends on the initial tightening torque or tension applied. External working loads add directly to the bolt tension depending on joint geometry and elastic compliance. The relative elastic stiffness of both the bolt and the clamped members determines the final load distribution. Bolted joints act as elastic spring systems where preloads stretch bolts and compress clamped plates. Initial tension establishes the baseline clamping force holding the mechanical assembly together securely. Elastic yielding or springiness governs how external forces partition between the fastener and the joint.
Engineers analyze joint elasticity to ensure bolts maintain adequate clamping force under operating conditions. Critical machinery design requires comprehensive bolt tension calculations to prevent joint separation and fatigue. Proper fastener engineering accounts for material elasticity, initial torque, and external working loads. Initial tension alone determines preload, but external loads also alter the final resultant bolt tension. External load alone ignores the crucial influence of initial bolt tightening and joint elastic stiffness. Listing elasticity without initial tension and external loads provides an incomplete picture of total bolt tension.
- Subject
- Engineering
- Category
- Mechanical Engineering
- Topic
- —
- Difficulty
- medium
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