A steel bar is held by two fixed supports as shown in the figure and is subjected to an increase of temperature AT = 100°C. If the coefficient of thermal expansion and Young's modulus of elasticity of steel are 11x10-6°C and 200 GPa, respectively, the magnitude of thermal stress (in MPa) induced in the

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Solve it correctly please. I

The composite bar shown is firmly attached to unyielding supports. An axial load P=200 KN is applied at C towards A at 20°C. (a) Find the stress of segment 1 at 60°C in MPa. (b) Find the stress of segment 2 at 60°C in MPa. (c) Determine the temperature in °C corresponding to equal stresses in segments 1 and 2. The properties of materials are, segment 1: B-11.7x10-6/°C, E=200 GPa, and A=1200 mm², segment 2: B=23x10-6/°C, E=70 GPa, A=900 mm². R+200,000 A P=200 KN zegment 1 300 man R ST₂ Des Final level Legment 2 C 200 man Initial level ST₁ B R R+200000

A metal cylinder hangs from the ceiling through three cables attached as shown. If the tension in cable AD is 4.3 kN, what would be the (a) tension on cables AB and AC (b) weight of the cylinder Answer: T_AB=4.1667kN ; T_AC= 3.8250kN; W=9.71kN   Kindky answer it with complete solution and with this format: Given  Equation Solution

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A steel plate (E = 31000 ksi, G= 12000 ksi, alpha (a) = 6 * 10 ^ -6 1/F ) with dimensions a = 20 in and b = 13 in and thickness t = 7.5 in. The plate is between to rigid, smooth surfaces as depicted in the diagram below. A compressive normal stress of 50 ksi is applied in the x direction with a Temperature increase of 100 F, determine the normal stress acting on the plate in the y direction assuming the plate CANNOT change shape in the y-direction as a result of the applied constraint. (ASSUME PLANE STRESS CONDITION)

(1) A steel cylinder (Øyp = 260 MPa) of inner radius a and outer radius 3a is subjected to an internal fluid pressure pi (Note: ratio of wall thickness (t) to inner radius indicates that this is a thick-walled cylinder). (a) Determine (i) the maximum radial stress (ơmax); (ii) the maximum tangential stress (o0max). (b) Determine the limiting values of p, using: (i) the maximum distortion energy theory of failure; and (ii) the maximum shear stress theory of failure. (Hint: Maximum radial and tangential stresses occur at the same radial distance, see slide 8 of Lecture 9 notes); use these maximum stresses as your principal stresses). (c) A steel gun barrel of inner radius 0.6 m is subjected to an internal explosive pressure of 80 MPa. The tensile and compressive elastic strengths of the material are 320 MPa. Assuming a factor of safety of 2, design the wall thickness of the gun barrel.

Use the principle of Strain energy due to direct stresses strength of materials 2

only HANDWRITTEN answer needed ( NOT TYPED)