Fatigue FAILURE CRITERIA in Just Over 10 Minutes!

DE-Goodman, DE-Morrow, DE-Gerber, DE-ASME, etc.
Mean and Alternating Stresses,
Fatigue Failure,
Infinite Life,
Shaft Design Equations.
STATIC Failure Criteria:
Yield (DUCTILE) FAILURE Theories in Just Over 10 Minutes!
• Yield (DUCTILE) FAILUR...
Fracture (BRITTLE) FAILURE Theories in 10 Minutes!
• Fracture (BRITTLE) FAI...
0:00 Fluctuating Stress Cycles
1:39 Mean and Alternating Stress
2:32 Fluctuating Stress Diagram
4:54 Fatigue Failure Criteria
6:25 Fatigue Failure Example
7:22 Example Question
Previous Video: Fatigue Stress Concentrations in Just Over 10 Minutes
• Fatigue STRESS CONCENT...
Example 1: • Fatigue Failure Criter...
Example 2: • Fatigue Failure Criter...
Fatigue Failure Criteria - Von Mises Stress Equation for Given Normal and Shearing Stress
• Fatigue Failure Criter...
_____________________________________________
Other "Mechanical Engineering Design 1" Links:
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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...
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38. Bearing Axial Loads and Equivalent Combined Loads • Bearings - COMBINED Ra...

[@jaidrofire]

Your videos helped me pass the MDM PE exam recently. They cover just about the level of depth that is needed for the exams. I don't know how you did it, but reviewing topics that I covered 4 years ago in undergrad makes it a breeze. Keep this up and thanks for all the fish.

[@georgebarros6095]

Your channel is just amazing! Keep the good work, man! Best regards here from Brazil!

[@georgesbreak2941]

Just found this channel. Wat a goldmine. Keep up the great quality videos and Im sure the hardwork will pay off when the algorithm picks up other aspiring engineers like me. All love from Canada!

[@user-lw4je9hu2s]

legend has it that, aliens watched this video before building the pyramids

[@prathameshsundaram7509]

Brilliant! Your content is gold!

[@muhammadarhamkhalil2661]

Great Work!!! Keep it up.

[@gastonpalleres6994]

Epic video man! It really helped me with mi hw

[@samuelcarvalho3691]

Brilliant!! thanks so much!! KEEP THIS KINDA CONTENT COMING!!

[@LessBoringLectures]

Thanks! Will do! Share with friends!

[@alexchonor1982]

very clear! thanks

[@vivipo9716]

Thank you so much for your videos, they're so helpful Will you write a book? Can you recommend some books about fatigue please?

[@mohammadesmaeilzadeh8240]

Could you recheck the nominal stress calculation? I believe, the used graph (min 9:43, in Shigley textbook A-15-4) suggests another formula. Thanks

[@adhithasimhanraghavan7516]

At 3:32 - I have a question here. It makes sense that the decreasing the no of cycles increases the alternating stress value for zero mean stress. But how to obtain the points to plot between the curve formed between sigma a at diff N values and ultimate stress? Is that a parabola, arc of a circle or what is the equation of those curves exactly?

[@saaeedalmahady2235]

it's so nice excuse me I need to know the program the you used to do this type of videos

[@greenfoodpower6961]

Excellent! Just need to slow down. 10 minutes is not important. Understanding the material is more important. Good job!

[@SanjayDolare]

Great!...just make it a little slow.. thank you so much!

[@gabrielpillay5268]

Awesome

[@galibyasar4685]

man ur lectures are best but you should slow down a bit

[@dremr2038]

i did not understand this. Can you provide the pre requisites to understand this lecture?

[@selfstudymechanicaltechniques]

Dear sir, your videos are excellent but most of your videos are in English or ASME units and I found it really difficult to work out in metric units. Sir could you please upload the videos for everything for fatigue in metric units.

[@MEBMEESALACHANDU]

@8:32 is h=(1/4)-2(1/32) ???

[@user-bz7gg6dw9o]

Is faluire occures when we exceed the yield strength or ultimate strength !?

[@LessBoringLectures]

For fatigue, it's the fatigue strength, not yield, nor ultimate strength.

[@jgarri2rodriguez]

Can you pass this pdf ?