1. Determine the critical buckling stress (for) of a 4" x 4" column. The column is 12' high, pinned at the top and bottom, and the material has a modulus of elasticity of 1.4x10° psi.

i need the answer quickly

A rectangular steel block is 75 mm in the x-direction, 50 mm in the y-direction and 100 mm in the z direction. The block is subjected to triaxial loading consisting of three uniformly forces as follows: 24 KN tension in the x-direction, 250 KN compression in the y-direction, and 240 KN tension in the z-direction. If u = 0.3 and E = 200 GPa, Determine the total resulting strain in the z- direction. Note: CN is the last 2 non zero digits of your cellphone number

A rectangular steel block is 75 mm in the x-direction, 50 mm in the y-direction and 100 mm in the z direction. The block is subjected to triaxial loading consisting of three uniformly forces as follows: KN tension in the x-direction, 250 KN compression in the y-direction, and 240 KN tension in the z-direction. If u = 0.3 andE = 200 GPa, Determine the total resulting strain in the x- direction. %3D

Lots of thanks for the help

Solution w/FBD

A hollow cylinder with an OD of 100mm and an ID of 30mm, supports a load of 100kN. What is the compressive stress in MPa?.............I know stress=p/a , but I am not sure how to find the height in order to calculate the area or if there would be another way of doing it ?

A) Determine the lateral strain B) Determine the axial strain C) determine the poisson’ts ratio V.   COMPLETE SOLUTION. THANKS!

1. Shown is a composite plate joined together by rivets. The components consist of two tension bar plates that is % X 4 inch and riveted together by two splice plates which is 0.8 X 6 inch. Each rivet has a diameter of 25.4 mm. Considering that the allowable stress for the tension bar plates and splice plates is o=20.0 ksi, the allowable shear stress for the rivets is o=25.0 ksi and the allowable bearing stress on the rivets and splice plates is o=25.0 ksi. What will be the maximum permissible load P such that none of the allowable stresses will be exceeded? Splice Plates a-0.75 in Bar Lc =0.80 in. Bar P d = 1.0 in. b=4.0 in. Rivets 'e = 6.0 in.

Plz complete  solution.