Problem 4-44/4-45/4-46/ Engineering Mechanics Materials.

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4–44. The assembly consists of two red brass C83400 copper rods AB and CD having a diameter of 30 mm, a 304 stainless steel rod EF having a diameter of 40 mm, and a rigid member G . If the supports at A , C and F each have a stiffness of k = 200 MN/m, determine the average normal stress developed in the rods when the load is applied.

4–45. The bolt has a diameter of 20 mm and passes through a tube that has an inner diameter of 50 mm and an outer diameter of 60 mm. If the bolt and tube are made of
A-36 steel, determine the normal stress in the tube and bolt when a force of 40 kN is applied to the bolt. Assume the end caps are rigid.

4–46. If the gap between C and the rigid wall at D is initially 0.15 mm, determine the support reactions at A and D when the force P = 200 kN is applied. The assembly is made of A-36 steel.
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Комментарии
Автор

What the hell is going on there? What's k? How can a deflection be found by dividing a force by a random constant k???

consaidercordo
Автор

Hey there, on 1:10 you incorrectly replaced the formula (writting the value of Eab where Eef should be).

Great videos btw

Edit: the result shown is right, just the error on the substitution.

juanschleske