Bolt Load
Preload - Pretension
Torque to Bolt Preload Relationship
0:00 Bolt Failure
1:09 Preload Deformations
1:59 External Load Deformations
2:46 External Load Fractions
4:06 Graphic Representation of Loads
5:50 Fastening Torque vs. Preload
6:47 Collar Diameter for Torque Calc
7:37 Simplified Version of T vs. F
8:09 Preload and Load Example
Number of Nut Turns to Preload Relationship Video:
https://youtu.be/fXIgZ8RiHSI
Previous Video: Bolt (Fasteners) and Member Stiffness in Just Over 10 Minutes
https://youtu.be/CDmvSRMwCyQ
Example 1: https://youtu.be/j0n2GutMec</a>
Example 2: https://youtu.be/Zuc6joLjwII
Next Video: Factors of Safety for Tension Joints with Preload in 13 Minutes
https://youtu.be/j6B433Xdtb0
Proof Strength and Proof Load Video:
Factors of Safety for Tension Joints with Preload in 13 Minutes
https://youtu.be/j6B433Xdtb0
________________
Other "Mechanical Engineering Design 1" Links:
1. Axial Loading Review https://youtu.be/d-ZriY-TWKI
2. Torsion Review https://youtu.be/Nem1IabOLsk
3. Pure Bending and Deflection Review https://youtu.be/KgpxCEKHKmY
4. Pure Bending and Deflection Combined Example https://youtu.be/SS0lXhKz1M0
5. Shear and First Moment About Neutral Axis Review https://youtu.be/ynSo2bXbIX0
6. Mohr’s Circle Review https://youtu.be/Xc3VzDy5Ik4
7. Brittle Failure Theories - Fracture Criteria https://youtu.be/D7aoVr7qzGc
8. Ductile Failure Theories - Yield Criteria https://youtu.be/YlRwO56r2UU
9. Design Factor and Uncertainty vs. Factor of Safety https://youtu.be/HZZWWpF45pw
10. Tolerance Stack Ups and Tolerance Loops https://youtu.be/_pHt_g0oLYs
11. Castigliano’s Theorem https://youtu.be/oJU94i-O19U
12. Fracture Toughness https://youtu.be/3CPRRov7DRk
13. Crack Propagation https://youtu.be/wLm_IjFcltA
14. Fatigue SN Diagrams https://youtu.be/bKisZhBzQsU
15. Marin Factors and Corrected Endurance Limit https://youtu.be/kZwl9Jysk64
16. Fatigue Stress Concentration and Notch Sensitivity Factors https://youtu.be/nCEn924X2aI
17. Fatigue Failure Criteria https://youtu.be/mAJsN1_IY2U
18. Shaft Design and Iterative Process https://youtu.be/Fp5-jjmaksM
19. Power Screws – Torque to Force Relationship https://youtu.be/BstZUC4tcOA
20. Screw Thread Stress https://youtu.be/46lcuQYQ14g
21. Fastener and Member Stiffness https://youtu.be/CDmvSRMwCyQ
22. Bolt Tension https://youtu.be/NsJ0uS7sZxo
23. Proof Strength and Factors of Safety https://youtu.be/j6B433Xdtb0
24. Spring Stress and Spring Constant https://youtu.be/5Vv1NBvpG4Y
25. Shearing Yield Strength and Presetting https://youtu.be/iGED8XYE3PI
26. Springs Fatigue – Zimmerli Data https://youtu.be/Y29Q-Q91xlk
27. Spring Design Restrictions https://youtu.be/dsWQrzfQt3s
28. Extension Springs https://youtu.be/wKzU2s9bEA8
29. Gear Relations and Nomenclature https://youtu.be/NF8fpuczU5I
30. Gear Trains and Planetary Gears – Mechanical Advantage https://youtu.be/zE4HGKRufU0
31. Spur Gear Forces and Force Components https://youtu.be/UieUEBnO5ps
32. Helical and Bevel Gear Forces https://youtu.be/921ToiOynMA
33. Worm Gear Forces https://youtu.be/7cNR4YJ1cnI
34. Bending Stress at the Teeth – Lewis Form Factor https://youtu.be/J1i29j43trM
35. Pitting - Surface Compressive Stress https://youtu.be/g2q-S6SJ9n4
36. Bearing Radial Loads https://youtu.be/aU4CVZo3wgk
37. Bearing Reliability https://youtu.be/HxnOMUx7w3o
38. Bearing Axial Loads and Equivalent Combined Loads https://youtu.be/3b8yOMSWXXk
TENSIONTensionNon-Permanent
