Mechanics of Materials: Lesson 11 - Modulus of Elasticity Example Problem

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Күн бұрын

Пікірлер: 38

@ozlemd.7714 18 күн бұрын

Dr. Hanson, you are an amazing teacher especially-especially for those who wants to know why instead of just the formulas. Thank you!

@bradjohnson9088 3 жыл бұрын

Freedom units gets me every time

@philipcardines1493 4 жыл бұрын

You are now my master!

@manuboker1 Жыл бұрын

Wonderful Lectures ! Thanks.

@Adam_mohammed_ 3 жыл бұрын

Great examples!

@ryanisaacson118 3 жыл бұрын

i really enjoyed this

@oussama_lb Жыл бұрын

Thank you a lot sir!

@coohjay 3 жыл бұрын

i see you with that 4k camera

@mohammadabdulrahman8291 Жыл бұрын

“Freedom units” 😂😂😂😂

@angeloumagboo8848 3 жыл бұрын

thank youu!!!!

@ishajak9452 3 жыл бұрын

Thank you for your videos professor! Are you using the Mechanics of Materials book by Goodno and Gere?

@1234jhanson 3 жыл бұрын

No...Hibbeler

@CaptainMoroni9 4 жыл бұрын

Legendary

@harirusamiru2836 6 ай бұрын

thanks very much you are us sensei

@snorreleretpettersen8311 3 жыл бұрын

When finding strain in DE, arent you supposed to divide the displacement .0417 by the full length of 60"? Not by length AB as shown. Please correct me if I'm wrong!

@jackbaer6401 3 жыл бұрын

He was dividing it by the original length of DE which was 36", I know it was weird because AB is also 36"

@multipleorganfailure3449 2 жыл бұрын

Great

@zachrosedahl2813 10 ай бұрын

Jeff is my hero

@user-cn3zt6zd3i 5 ай бұрын

Thankyou very much for the video professor it really helped a lot, however I have a doubt: at 2:24 how did you know that rod AD rather than bending in a parabolic shape at point B, point D also had a displacement and whole rod AD went down?

@pabloarmijo9974 2 жыл бұрын

When I divide the force 112 kips over area 0.002 in^2 I get 56000 ksi and the ksi goes away with modulus 29000 ksi to get unitless strain to be 1.93… I don’t understand how Jeff cuts it down to 56 for the stress BC, can someone explain pls 🙏

@deannam1981 Жыл бұрын

it's 112 pounds divided by .002 inches. not 112 kips. 112 pounds/.002=56,000 pounds/in^2 which is 56 kips.

@quangduongminh8698 2 жыл бұрын

can we just find the strain of BC by using delta (.025) over original length (48'')

@aidtheneedy4640 2 жыл бұрын

Am having the same question, please if you have an answer to the above question, reply here, thanks :)

@jaguirre9176 2 жыл бұрын

@@aidtheneedy4640 The (0.025) is the deflection of the beam. not cable.

@enggurux3986 Ай бұрын

@@aidtheneedy4640 no becouse all bar moved down including bc cable if the bar didn't move and cable alone stretched we can use delta 0.25

@rrg.r2456 5 ай бұрын

Why would BC develop strain?

@aungyeoo2753 Жыл бұрын

Sir, May I know what is the book name that you were showing to us?

@wsnekk3290 Жыл бұрын

Mechanics of Materials by Hibbler

@jaguirre9176 2 жыл бұрын

What if you assume the beam is sagging. Then, the change in D won't be 0.0417.

@deannam1981 Жыл бұрын

sagging goes away with the force of W. you could make the problem longer and calculate the sag before a weight gets put on.

@abdullahal-asmari5847 3 жыл бұрын

is it ok to not convert to inches?

@rabahalishah5124 Жыл бұрын

yup its totally fine.

@likjjj584 9 ай бұрын

When solving for the strain in BC why cant u just do 0.025/48 to find the strain?

@DrChaos-wr2my 9 ай бұрын

Because. 0.025 was because bc was lowered because of the weight. Not because it stretched.

@chrisgarcia1713 3 жыл бұрын

Freedom units haha

@Peter_1986 2 жыл бұрын

lol, freedom units.

@danielstarkey3767 2 жыл бұрын

Freedom units hahah

@markcorpuz1017 3 жыл бұрын

LODI