ไม่สามารถเล่นวิดีโอนี้
ขออภัยในความไม่สะดวก
Fatigue STRESS CONCENTRATIONS in Just Over 10 Minutes!
ฝัง
- เผยแพร่เมื่อ 1 ส.ค. 2024
- Fatigue Stress Concentration Factors, Kf and Kfs.
Notch Sensitivity q and qs.
0:00 Stress Concentrations
0:51 Fatigue Stress Concentration
1:41 Notch Sensitivity, q
2:28 Notch Sensitivity Charts
3:16 Example of Use
STATIC Stress Concentration Factors - How to Use Charts:
Axial Loading:
• Stress CONCENTRATION F...
Torsion & Bending:
• Stress CONCENTRATIONS ...
Previous Video: Marin Factors for Endurance Limits in Just Over 10 Minutes
• Marin Factors for ENDU...
Example 1: • Fatigue Stress Concent...
Example 2: • Fatigue Stress Concent...
Example 3: • Fatigue Stress Concent...
Next Video: Fatigue Failure Criteria in Just Over 10 Minutes
• Fatigue FAILURE CRITER...
_____________________________________________
Other "Mechanical Engineering Design 1" Links:
1. Axial Loading Review • Axial Loading Review f...
2. Torsion Review • Torsion Review for Mec...
3. Pure Bending and Deflection Review • Bending Review for Mec...
4. Pure Bending and Deflection Combined Example • Deflection of Beams Re...
5. Shear and First Moment About Neutral Axis Review • Transverse Shear Revie...
6. Mohr's Circle Review • COMPLETE Mohr's Circle...
7. Brittle Failure Theories - Fracture Criteria • Brittle Failure Theori...
8. Ductile Failure Theories - Yield Criteria • Ductile Failure Theori...
9. Design Factor and Uncertainty vs. Factor of Safety • DESIGN FACTOR and Unce...
10. Tolerance Stack Ups and Tolerance Loops • Uncertainty for Design...
11. Castigliano's Theorem • Castigliano's Theorem ...
12. Fracture Toughness • FRACTURE TOUGHNESS and...
13. Crack Propagation • CRACK PROPAGATION and ...
14. Fatigue SN Diagrams • Fatigue (Strength-Numb...
15. Marin Factors and Corrected Endurance Limit • Marin Factors for ENDU...
16. Fatigue Stress Concentration and Notch Sensitivity Factors • Fatigue STRESS CONCENT...
17. Fatigue Failure Criteria • Fatigue FAILURE CRITER...
18. Shaft Design and Iterative Process • Shaft Design for INFIN...
19. Power Screws - Torque to Force Relationship • Power Screws - Torque ...
20. Screw Thread Stress • Stresses at Screw Thre...
21. Fastener and Member Stiffness • Bolt (Fasteners) and M...
22. Bolt Tension • BOLT TENSION and Tensi...
23. Proof Strength and Factors of Safety • PROOF STRENGTH - Facto...
24. Spring Stress and Spring Constant • Mechanical Springs - S...
25. Shearing Yield Strength and Presetting • Springs - PRESETTING a...
26. Springs Fatigue - Zimmerli Data • Springs Fatigue and ZI...
27. Spring Design Restrictions • Mechanical SPRING DESI...
28. Extension Springs • EXTENSION SPRING Desig...
29. Gear Relations and Nomenclature • GEARS BASICS - Nomencl...
30. Gear Trains and Planetary Gears - Mechanical Advantage • Gear Trains and PLANET...
31. Spur Gear Forces and Force Components • Gear Forces and Power ...
32. Helical and Bevel Gear Forces • Gear Forces of HELICAL...
33. Worm Gear Forces • WORM GEARS - Forces an...
34. Bending Stress at the Teeth - Lewis Form Factor • LEWIS BENDING STRESS a...
35. Pitting - Surface Compressive Stress • Gear PITTING - Surface...
36. Bearing Radial Loads • BEARINGS BASICS and Be...
37. Bearing Reliability • Bearings RELIABILITY a...
38. Bearing Axial Loads and Equivalent Combined Loads • Bearings - COMBINED Ra...
Clear. Efficient. Quick. Wonderful video!
Thank you so much🙏
Thank you for these concise summaries and examples! Sharing with my students.
Wonderful!
Your videos are amazing. Thank you. There is a question for the ka table. Values are different than most of the other tables why?
Perfecto, estoy suscrito
not just less boring, brilliant engineering
thanks for this excellent explanation
tq sir
Can u explain how u found point of loading P = 500, 300mm from the left? did u assume the assembly was loaded in its center?
How do you acquire notch sensitivity factor (q) not using the charts? In my design, I have notches with radius 5, and 7.2 mm which are both out of scope of the chart.
Where did you source the graphs at 3:00?
You showed the wrong formula for kf, it's upside down, by your formula kf will be between 0-1
Can you point to the time in which this happens? I already checked the entire video, and I found nothing wrong with any of the Kf expressions.
@@LessBoringLectures check on 1:01 in time! That one (Notched/ Notch-free) should be correct! Make it upside down!
@@neutroviolet2918 How though? Surely if there is a notch then the fatigue life will be less than the notch-free fatigue life, so the Kf value has to be greater than 1
Formula for Kt is wrong
Can you point to the time in which this happens? I already checked the entire video, and I found nothing wrong with the Kt expressions.