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!
Fracture (BRITTLE) FAILURE Theories in 10 Minutes!

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 Failure Criteria - Von Mises Stress Equation for Given Normal and Shearing Stress

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Other "Mechanical Engineering Design 1" Links:

[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.

[georgesbreak]

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!

[georgebarros]

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

[samuelcarvalho]

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

[vivipo]

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

[SanjayDolare]

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

[GasPa-so]

Epic video man! It really helped me with mi hw

[galibyasar]

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

[saaeedalmahady]

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

[greenfoodpower]

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

[ArashSheikholeslami]

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

[mohammadesmaeilzadeh]

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

[adhithasimhanraghavan]

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?

[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.

[dremr]

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

[التميمي-ضت]

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