3 نقطة (نقاط) السؤال 1 A bar of 20 mm diameter is made of a material...
A bar of 20 mm diameter is made of a material having a modulus of elasticity of E = 82 GPa and a modulus of rigidity of G = 68 GPa. If it is loaded axially with a compressive force of 100 kN, determine the absolute change in its diameter.
A bar of 20 mm diameter is made of a material having a modulus of elasticity of E = 84 GPa and a modulus of rigidity of G = 66 GPa. If it is loaded axially with a compressive force of 90 kN, determine the absolute change in its diameter.
5 نقطة (نقاط) السؤال 2 A steel 80 KN pipe (E = 205 GPa) of 85 mm outer 500 mm diameter is filled with concrete (E = 25 GPa) and subjected to a compressive force of 80 kN. If the force is equally shared between the steel and the concrete, determine the inner diameter of the pipe (mm) ااال
A bar of metal (length L =200 mm, diameter d=10 mm) is loaded axially by a tensile force P = 12 kN. If the bar elongates by 0.3 mm, what is the decrease in diameter d? What is the value of modulus of elasticity? Consider, v=0.30.
Task 3-A brass tie bar of length 500 mm and diameter 20 mm undergoes a change in temperature from 25°C to 135° C. The linear expansivity of copper is 19 10"C" and its modulus of elasticity is 84 Gpa. i) Determine the change of length that takes place. ii) Determine the compressive force induced in the bar if it is rigidly held and expansion is prevented
1. A tensile force of 100 kN is applied on a 0.02 m diameter 2 m length rod. After applying the load, the diameter of the rod decreases to 0.01998 m and the length increases to 2.01 m. What is the Poisson's Ratio of this material? 2. A tensile force of 100 kN is applied on a 0.02 m diameter 2 m length rod. After applying the load, the diameter of the rod decreases to 0.01998 m and the length...
100 KN 150 mm 450 mm ΑΙ B G С The three cylinder rods made of A-36 steel and have equal cross-sectional areas support a vertical load of 100kN as shown. The bar ABC is fully rigid. Determine: a) The force at A, B and C. b) The diameter of the rods consider safety factor of 1.5, rounded to the nearest even number. c) The displacement of point A, B, C. A 36 steel, Modulus of elasticity E = 200...
1. A closely coiled helical spring made of 15 mm diameter steel
wire has 15 coils of 110 mm mean diameter. The spring is subjected
to an axial load of 180 N. Calculate the maximum shear stress
induced in the spring. Assume modulus of rigidity is 78 GPa.
2. A solid circular bar ABC consists of two segments, as shown
in the figure. One segment has diameter d1= 65 mm and
length L1 = 1.54 m; the other segment has...
A test bar 12.8 mm in diameter and 50 mm initial length is loaded elastically with 16000 kgf and is elongated 0.36 mm. Its diameter is 12.78 mm under load. Calculate, the modulus of elasticity and Poisson’s ratio of the material.
Dimensions in mm 180- --120---100 100 Problem 1: Two cylindrical rods, one of steel (Ex = 200 GPa) and the other of brass (Eb = 105 GPa), are joined at C and restrained by rigid supports at A and E. For the loading shown, determine: (a) the reactions at A and E, (b) the deflection of point C. cl DE Brass Steel B. 760 KN 40KN 40-mm diam. 30-mm diam. Problem 2: A 15-mm-diameter rod made of an experimental plastic...