Calculate the strain if initial length of rod is 104 mm and extension in rod due to tesnile load is 1.2 mm
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- A tensile test was performed on a metal specimen having a circular cross section with a diameter 0. 510 inch. For each increment of load applied, the strain was directly determined by means of a strain gage attached to the specimen. The results are, shown in Table: 1.5.1. a. Prepare a table of stress and strain. b. Plot these data to obtain a stress-strain curve. Do not connect the data points; draw a best-fit straight line through them. c. Determine the modulus of elasticity as the slope of the best-fit line.2. The manufactured wood beam carries the concentrated loads shown. What is the maximum safe value of P if the working stress in shear is 6 MPa? 20 mm 80 mm |3P 2 m 2 m 70 mm B 160 mm -- NA I = 15.52 × 106 mmª 1.0 m 1.0 m 20 mmPROBLEM 1) An aluminum bar carries the axial loads at the positions shown. If E=70GPA, compute the total deformation of the bar. Assume that the bar is suitably braced to prevent buckling. 0.4m D 10KN. 0.8m 0.4m B 5KN 0.6m Al 20KN Q2 5) What is the deformation 8, in mm? A=800 mm? A=1,200 mm?
- A small aluminum alloy [E = 73 GPa] teeshape is used as a simply supported beam as shown. For this beam, a = 150 mm. The cross- sectional dimensions of the teeshape are b = 25 mm, d= 38 mm, and t=7 mm. After loads are applied to the beam at B, C, and D, a compressive normal strain of 490cis measured from a strain gage located at c= 9 rmm below the topmost edge of the tee stem at section 1-1. What is the applied load P? 3P Strain gage d a a H Answer: P = iThe light rigid bar ABCD shown is pinned at C and connected to two vertical rods. The bar was initially horizontal, and the rods were stress-free before the loadP 20 KN is applied. 15m What is the axial deformation of stecl rod in mm?A steel tube with 3cm outside diameter, 0.25cm thick, and 4m long is covered and lined throughout with copper tubes 0.20cm thick. The three tubes are joined together at their ends. What is the maximum compressive load that can be applied to the top such that the total deformation does not exceed 0.50mm? Esteel = 200 GPa & Ecopper = 110 GPa.
- PROBLEM 1) An aluminum bar carries the axial loads at the positions shown. If E=70GPA, compute the total deformation of the bar. Assume that the bar is suitably braced to prevent buckling. 0.4m D 10KN 0.8m 0.4m B 5KN 0.6m AL 20KN What is the deformation &pE in mm? A=800 mm² A=1,200 mm²The center post B of the assembly has an original length of 124.7 mm, whereas postsA and C have a length of 125 mm. If the caps on the top and bottom can beconsidered rigid, determine the average normal stress in each post. The posts aremade of aluminum and have a cross-sectional area of 400 mm Eal = 70 GPa. Detailed solution pls. Thank you!Find the initial length of rod if strain value is 0.0003 and change in length value 0.3 mm
- According to IS 800-1962 the permissible bending stress in steel slab plate is (b) 1420 kg/cm² (d) 1890 kg/cm² (a) 1500 kg/cm² (c) 2125 kg/cm²Two steel plates each of width 150 mm and thickness 10 mm are connected with three 20 mm diameter rivets placed in zig-zag pattern. The pitch of the rivets is 75 mm and the gauge is 60 mm. If the allowable tensile stress is 150 MPa, then the maximum tensile force that the joint can withstand isA small aluminum alloy [E 65 GPa] tee shape is used as a simply supported beam as shown. For this beam, a 165 mm. The cross- sectional dimensions of the tee shape are b 19 mm, d= 29 mm, and t 7 mm, After loads are applied to the beam at B, C, and D,a compressive normal strain of 480 uɛ is measured from a strain gage located at c=5 mm below the topmost edge of the tee stem at section 1-1. What is the applied load P? 17 P. P. 3P Strain gage D a - H. a b. Answer: ! N P = i 2.