Mohr's Circle (1/2 - explanation and how to draw) - Mechanics of Materials

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  • เผยแพร่เมื่อ 24 ธ.ค. 2024

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  • @reinistrasuns4953
    @reinistrasuns4953 6 ปีที่แล้ว +164

    1:19 "... problem starts by giving you a state of stress."

    • @syd3011
      @syd3011 5 ปีที่แล้ว +5

      Reinis Trasūns accurate

  • @structurefree
    @structurefree  11 ปีที่แล้ว +46

    I created another Mohr's circle explanation video, since the the volume of the first video was so low. The new version is better, faster, stronger? Well, definitely louder.

    • @salwan6153
      @salwan6153 11 ปีที่แล้ว +1

      thank you so much..... you have been so helpful ...

    • @structurefree
      @structurefree  11 ปีที่แล้ว +1

      Salwa N no problem. I'm glad they are useful.

    • @salwan6153
      @salwan6153 11 ปีที่แล้ว +1

      I wish that you do more videos on buildings structural design ...and by the way it is so energetic being loud ..

    • @structurefree
      @structurefree  11 ปีที่แล้ว +7

      do you mean steel design and reinforced concrete design?

    • @Specularrrr
      @Specularrrr 10 ปีที่แล้ว

      what software do you use to make these videos?

  • @CrimsonVoid
    @CrimsonVoid 9 ปีที่แล้ว +50

    I really wish we had videos like this when I was in college. Having these concepts explained in different ways by different people would have made it a lot easier to understand.

    • @Catloverss95
      @Catloverss95 3 ปีที่แล้ว

      Mohr circle examples
      th-cam.com/video/eDCcN1Yievk/w-d-xo.html

    • @Structural_analysis
      @Structural_analysis 3 ปีที่แล้ว

      th-cam.com/video/eDCcN1Yievk/w-d-xo.html

  • @Diegofreelite
    @Diegofreelite 7 ปีที่แล้ว +4

    Please Please keep the work. I do not know if you're a college teacher but you have a talent. I wish this channel was here for forever.

  • @TimothyMoananu
    @TimothyMoananu 9 ปีที่แล้ว +1

    I can't thank you enough structurefree. You've made this video for the sake of simplicity. God bless you!!!

  • @ljcalderon90
    @ljcalderon90 9 ปีที่แล้ว +6

    dude...dude...thank you so much! for some reason, Mohr's Circle seemed so abstract to me but you were able to demystify it and clarify so many things for me.

  • @dotingathlete424
    @dotingathlete424 ปีที่แล้ว +2

    dude i freaking love youuuu ! thank you

  • @RyanMcQueen1985
    @RyanMcQueen1985 9 ปีที่แล้ว +11

    The convention you show (up/right is positive, down/left is negative), is contrary to the method I learned. The method I was taught is to isolate the shear stress and consider it as if it was the only one acting on the square. If it would move the square clockwise, it is positive, if it would move the square counter-clockwise, it is negative.
    I believe you account for this discrepancy by flipping the direction of the tau-axis so that positive is down. If you use the method I described, you can keep positive tau oriented upwards, which is more intuitive. I also think it is just a simpler way to determine the sign of the stress.
    If people are having trouble with the method you show in the video, hopefully this can help.

    • @Viscoplasticbeing
      @Viscoplasticbeing 5 ปีที่แล้ว

      Thank you very much... I encountered the same problem. Thank you for your information.

  • @munzirmahsud5567
    @munzirmahsud5567 8 ปีที่แล้ว +3

    You are incredible and would give you 5 stars for your teaching method.

  • @aiknowledge-n2s
    @aiknowledge-n2s 5 ปีที่แล้ว +2

    Excellent Stuff on this Channel.

  • @likkilikhith634
    @likkilikhith634 4 ปีที่แล้ว +1

    i can't understand, why that shear Stress is taken as positive in downwards direction can you explain it please with an example

  • @Toby_Gomez
    @Toby_Gomez 5 ปีที่แล้ว +6

    Jesus this video is amazing

    • @structurefree
      @structurefree  5 ปีที่แล้ว

      Yes!!! Can I get a witness!?!

  • @yahyasayid2066
    @yahyasayid2066 5 ปีที่แล้ว +1

    best youtube channel ever

  • @googleuser7349
    @googleuser7349 ปีที่แล้ว +1

    Your explanation is amazing!! Thank you so much!!!

  • @r3dk2
    @r3dk2 7 ปีที่แล้ว +1

    I know this is an old video but around 3:00 minutes:
    To know "Shear Stress" sign, you'd have to count
    Shear is positive if it's CCW.
    Shear is negative if it's CW.

  • @NdeshiWay
    @NdeshiWay 5 ปีที่แล้ว +6

    Oh my days! How can someone explain this to me in less than 7mins when my lecturer took a whole 2hrs🧐 thank Goodness for you

    • @structurefree
      @structurefree  5 ปีที่แล้ว

      Editing

    • @NdeshiWay
      @NdeshiWay 5 ปีที่แล้ว +1

      structurefree ohh yeahhh😂😂😂 I almost forgot I was in a digital class and not a physical one. Thanks for your help. I’m a Mining & Process Engineering student and I have to ace my Rock Mechanics module and you’ve been of great help 🙌🏽❤️

    • @structurefree
      @structurefree  5 ปีที่แล้ว +1

      Good luck with your final! Mechanics works everywhere...some might say it rocks! 😬

    • @NdeshiWay
      @NdeshiWay 5 ปีที่แล้ว

      structurefree 😂😂😂 good one!!

  • @jaitiswami2317
    @jaitiswami2317 5 ปีที่แล้ว +2

    Your videos are so clear and easy to understand. Thank you!!

  • @egarismana8964
    @egarismana8964 7 ปีที่แล้ว +1

    sangat membantu. Terimakasih banyak.. good job!!..

  • @ephraemarmycaballes3503
    @ephraemarmycaballes3503 7 ปีที่แล้ว +1

    Thank you Sir. You are better than my college teacher. I understand a lot more from you.

  • @lesibamoja1901
    @lesibamoja1901 8 ปีที่แล้ว +3

    YOIU ARE REALLY HELPFULL YOUR VIDEOS ARE THE REASON IM GETTING MY DEGREE

  • @AleHand_
    @AleHand_ 3 ปีที่แล้ว +1

    Finally understood shear tensile convention! Thanks!

  • @splitsman
    @splitsman 6 ปีที่แล้ว +6

    This is soo Good! Video presentation, explanation and clarity. Thanks, for getting straight to the points!

  • @ventin75
    @ventin75 9 ปีที่แล้ว +3

    from how you explain the sign of tau xy and tau yx at around 2:30 , i feel you will have a problem representing face-y on Mohr's circle as tau xy = -tau yx. Correct me if i am wrong.

    • @arthurcovatii9644
      @arthurcovatii9644 9 ปีที่แล้ว

      +fooser, yes. You are correct

    • @akarshrastogi3682
      @akarshrastogi3682 7 ปีที่แล้ว +1

      +fooser No, tau xy = tau yx. This is a basic concept in principals of plane stress. You can derive it easily. If you wanna look at it with some logic, both should be equal since the cube shouldn't rotate in equilibrium. Look at the positive directions of tau xy and yx. They are counter-rotational.

  • @chersw2210
    @chersw2210 10 ปีที่แล้ว +1

    I always learn ALOT from your videos. Thank you soooo much!!

  • @NirjhorKabir
    @NirjhorKabir 7 ปีที่แล้ว +2

    Thank you. for this video i was able to answer my semester finals.

  • @eduardfourie6537
    @eduardfourie6537 6 ปีที่แล้ว +3

    dude your voice just made me so amped for strengths XD thanks for the video

  • @christopherwilson431
    @christopherwilson431 11 ปีที่แล้ว

    does that mean if trow was positive upwards, a clockwise rotation to the principle axis on the mohrs circle would be an anticlockwise rotation on the element to the principle axis?
    n thanks for the videos

  • @parthivchandrak
    @parthivchandrak 5 ปีที่แล้ว +9

    *POSITIVE!* 😂 I loved the way he pronounced it. Great video! Helped a lot.

  • @subhajitpaul8185
    @subhajitpaul8185 6 ปีที่แล้ว +1

    sir, we use Mohr circle for measure the normal and shear stress,is it true?

  • @akarshrastogi3682
    @akarshrastogi3682 7 ปีที่แล้ว +28

    .... 2:34 and beyond : A fest of "Pphaaaaaaazitive"s

  • @AliHassan-dp5sf
    @AliHassan-dp5sf 8 ปีที่แล้ว +2

    what program do you use to draw

  • @IceyJunior
    @IceyJunior 8 ปีที่แล้ว

    Do you have derivation for stress transformation equations ? There is one book by James and Barry, they relate the angle of principal stresses and angle of maxium shear stress as theta_s=theta_p - 45 degree . I however tried derived myself and get theta_s=theta_p + 45 degree

  • @lacatracha22
    @lacatracha22 10 ปีที่แล้ว +1

    Wow you are amazing! I should have watched these videos long time ago! !

  • @the12345a1
    @the12345a1 10 ปีที่แล้ว +1

    URGENT! why is the tau xy is below of the x axis ,isnt that makes it negative ?

    • @MO0OHAMMED
      @MO0OHAMMED 9 ปีที่แล้ว +1

      For people who are still wondering, it is just a sign convection. Just remember that.

  • @ezalcinoryahoocom
    @ezalcinoryahoocom 10 ปีที่แล้ว +8

    much love structurefree, god knows I hate reading my textbook. Thank you so much!!

  • @123mus123
    @123mus123 11 ปีที่แล้ว +1

    Where were you when I needed you last year

  • @valentinadandan4513
    @valentinadandan4513 10 ปีที่แล้ว +1

    hello, i am still confused about the sign of the shear stress. My final is in two days, Thank you in advance.

  • @حيدرالهنداوي
    @حيدرالهنداوي 4 ปีที่แล้ว +1

    brother, I want your help

    • @structurefree
      @structurefree  4 ปีที่แล้ว +1

      I want a lot of things....brother! But mostly I just wanna be a baller.

    • @حيدرالهنداوي
      @حيدرالهنداوي 4 ปีที่แล้ว

      @@structurefree I was waiting for your response, my question about engineering plasticity. So could you please give me your email. Thanks

  • @retroSTAAR
    @retroSTAAR 8 ปีที่แล้ว +7

    I dont know how i can repay you..... YOU HAVE SAVED MY LIFE and im not even exaggerating

  • @ayousuf34
    @ayousuf34 7 ปีที่แล้ว

    in the video you said that the radius = (ox +oy)^2 +(Txy)^2 ......is it not supposed to be [(ox +oy)/2]^2?

  • @Sara-yr4kk
    @Sara-yr4kk 6 ปีที่แล้ว +2

    Thank you for this video it was a big help for my mechanics midterm :)

    • @Catloverss95
      @Catloverss95 3 ปีที่แล้ว

      Mohr circle examples
      th-cam.com/video/eDCcN1Yievk/w-d-xo.html

  • @thelegendofsheboo7048
    @thelegendofsheboo7048 4 ปีที่แล้ว

    How to derive the transformation equation

  • @fahimahmedbhuiyan2252
    @fahimahmedbhuiyan2252 6 ปีที่แล้ว +3

    this video's great and I hit the like button "BAM"!

  • @alfalfa202
    @alfalfa202 4 ปีที่แล้ว +1

    great video! Thanks

  • @abokaled94
    @abokaled94 10 ปีที่แล้ว +2

    you deserve this love from people. I will say it in arabic language أحبك

  • @sanamedjaldi2792
    @sanamedjaldi2792 5 ปีที่แล้ว

    What is the phisical paln

  • @FlorianRKlein
    @FlorianRKlein 10 ปีที่แล้ว +1

    I would be good to learn more about the stress element before using it in further explanations.

    • @structurefree
      @structurefree  10 ปีที่แล้ว

      Florian R. Klein ok. thanks for your comment.

  • @xiomaraashworth9139
    @xiomaraashworth9139 4 ปีที่แล้ว

    can you explain me about signals T++ T+ please?

  • @jordanmichael801
    @jordanmichael801 8 ปีที่แล้ว

    can soils experience tension?

  • @anandraitiscto5
    @anandraitiscto5 9 ปีที่แล้ว +2

    phasitive and phasitive makes it another phasitive.
    BTW great video.

  • @davidgalvao5312
    @davidgalvao5312 9 ปีที่แล้ว +6

    Could u make a video showing how to derive the Stress Transformation EQUATIONS? Thanks in Advance
    ''ur videos are awesome''

    • @structurefree
      @structurefree  9 ปีที่แล้ว +2

      +David Galvao these are definitely on my to do list. hopefully later this year.

  • @palashdas1280
    @palashdas1280 9 ปีที่แล้ว +1

    excellent teaching

  • @mikegovorushkin
    @mikegovorushkin 8 ปีที่แล้ว

    why does no one have and example of a 3d Mohr's Circle :/

  • @robthebank12
    @robthebank12 4 ปีที่แล้ว +3

    "Now's the time to find something round" - Beer can works haha

  • @SuperAquib786
    @SuperAquib786 10 ปีที่แล้ว

    This is still so much sophisticated..... I wish u could make this a Lil more demonstrating

    • @structurefree
      @structurefree  10 ปีที่แล้ว +1

      Aquib Ateeque it might help to watch the example problem video.

    • @SuperAquib786
      @SuperAquib786 10 ปีที่แล้ว +1

      thnx fa ur advice sir.........i certainly will

  • @stray_bullet_1
    @stray_bullet_1 11 ปีที่แล้ว +4

    You are the guy! I learned a lot! Thank you!! STRUCTURE FREE LEARNING!!!

    • @structurefree
      @structurefree  11 ปีที่แล้ว +10

      ball so hard, mofo's wanna find me.

  • @nathanielhernandez3584
    @nathanielhernandez3584 ปีที่แล้ว +1

    Most People are watching this because they need to complete college work. I'm just watching this because it's fun I've taken an interest in engineering and biology And i'm only eighteen

  • @rm10theocean31
    @rm10theocean31 ปีที่แล้ว

    Why you drew positive axis downward . why cant u use it as upward 😊

  • @jadhavprajyot9578
    @jadhavprajyot9578 5 ปีที่แล้ว

    Dude what about shear stress on y axis,according to ur convention the sign of that would be negative but by ur assumption of positive and negative shear stress it must be positive..

  • @Strettger
    @Strettger 11 ปีที่แล้ว +1

    And it makes sense.
    Thankyou!

  • @ranjann1443
    @ranjann1443 4 ปีที่แล้ว +1

    In other videos, tension sigma is negative. I'm confused right now. -.-

    • @structurefree
      @structurefree  4 ปีที่แล้ว

      Hmmm, where? Maybe in soils?

  • @shaikhsohail2063
    @shaikhsohail2063 8 ปีที่แล้ว +1

    thaknk you sir,i really appreciate this explain

  • @nitamesimarsita9980
    @nitamesimarsita9980 5 ปีที่แล้ว

    thank you sir, but can you make a variety of languages?

  • @sashamuller9743
    @sashamuller9743 4 ปีที่แล้ว +2

    told me to buy a compass in 2nd grade, finally using it 12 years later...

    • @structurefree
      @structurefree  4 ปีที่แล้ว

      It's like finding money in your pockets.

  • @madelineherrling8683
    @madelineherrling8683 3 ปีที่แล้ว +1

    Why couldn’t my professors make it this simple

  • @nubsmacker
    @nubsmacker 11 ปีที่แล้ว +1

    THANK YOU!!!!!!!!!!!! SO MUCH

  • @pepijn6713
    @pepijn6713 4 ปีที่แล้ว

    Thank you very much

  • @zhengyangsong
    @zhengyangsong 6 ปีที่แล้ว +1

    Many thanks!!!!!!!!!!!!!!!!!!!!

  • @maartenmtr3022
    @maartenmtr3022 8 ปีที่แล้ว +1

    you are awesome thx for the vid :)

  • @fck179
    @fck179 5 ปีที่แล้ว

    After watching this video, you can understand how it works in 3D using this app: play.google.com/store/apps/details?id=mechanics3d.app

  • @alikrgz3885
    @alikrgz3885 6 ปีที่แล้ว +1

    Thanks

  • @noppiichi
    @noppiichi 10 ปีที่แล้ว +1

    thanks, this helps :)

  • @omarhashem2238
    @omarhashem2238 6 ปีที่แล้ว +1

    Thanks bro 💙

  • @ricardflo1628
    @ricardflo1628 5 ปีที่แล้ว

    ★★★★★ excelente sevicio

  • @MD-dz2bk
    @MD-dz2bk 6 ปีที่แล้ว +1

    cool!

  • @chriscollins1097
    @chriscollins1097 6 ปีที่แล้ว

    Thank you

  • @sofi632
    @sofi632 10 ปีที่แล้ว +1

    i love you!

  • @geezerlb4066
    @geezerlb4066 7 ปีที่แล้ว

    youre not consistent with sigma(x') and sigma(x). Its super confusing

  • @taiki1994
    @taiki1994 10 ปีที่แล้ว +1

    Thanks yo

  • @concordioclomajr6976
    @concordioclomajr6976 9 ปีที่แล้ว +1

    I love you

  • @WonderingNobody
    @WonderingNobody 5 ปีที่แล้ว

    If you are not a genius then you live in Pluto ...

  • @NicoleYacoubian
    @NicoleYacoubian 4 ปีที่แล้ว

    I need values bruh

  • @lamborghinifan13
    @lamborghinifan13 8 ปีที่แล้ว

    Play at x2 speed :DD

  • @lovemerchant1
    @lovemerchant1 5 ปีที่แล้ว +1

    paaasitive

  • @entropyz5242
    @entropyz5242 5 ปีที่แล้ว

    I’m stressing out about this topic.

  • @thyapotheosis
    @thyapotheosis 10 ปีที่แล้ว +1

    You sound like Chris from family guy

  • @dogukanklc2472
    @dogukanklc2472 4 ปีที่แล้ว +1

    PEĞĞĞĞASİTİVV

  • @willlis13
    @willlis13 7 ปีที่แล้ว +12

    My lecturer is Indian so no one can understand a word he is saying. I should be paying you $1000 a semester!!!

  • @HHHPedigrees
    @HHHPedigrees 8 ปีที่แล้ว

    Fix your audio

  • @leoying859
    @leoying859 6 ปีที่แล้ว +2

    PPAAAWWWWsitive
    AAAvvVVVrage

  • @يونسقاطه
    @يونسقاطه 2 ปีที่แล้ว

    ترجمه الى اللغه العربيه

  • @sglenon4305
    @sglenon4305 6 ปีที่แล้ว

    you sound drunk..sorry✌🏻

  • @flop1272
    @flop1272 5 ปีที่แล้ว +2

    Thanks

  • @lacatracha22
    @lacatracha22 10 ปีที่แล้ว +1

    Wow you are amazing! I should have watched these videos long time ago! !