Two A36 16mm thick steel plates are connected by four rivets shown. 50 0 Pu 50
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WHERE:
RIVET DIAMETER = 12mm
X = 100mm
Y = 100mm
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- The data in Table 1.5.3 were obtained from a tensile test of a metal specimen with a rectangular cross section of 0.2011in.2 in area and a gage length (the length over which the elongation is measured) of 2.000 inches. The specimen was not loaded to failure. a. Generate a table of stress and strain values. b. Plot these values and draw a best-fit line to obtain a stress-strain curve. c. Determine the modulus of elasticity from the slope of the linear portion of the curve. d. Estimate the value of the proportional limit. e. Use the 0.2 offset method to determine the yield stress.Nicole took a steel rod, 15.08-mm in diameter, and held snugly (but without any initial stress) between rigid walls as shown in the figures. Assuming that the steel rod has a CLTE is 12.4 ×10−6mm/mm∘C and E = 200GPa. 1) Calculate the temperature drop at which the average shear stress in the 11.78-mm diameter bolt becomes 46.387MPa.2) Calculate the normal stress on the rod3) Based on figure (a). What is the average bearing stress between the washer (21.84 mm diameter) and the wall (thickness: 19.89mm) 4) What is the average bearing stress between the bolt and clevis with a thickness of 14.34mm?Two wooden boards are joined by cutting and gluing them together along the plane shownin the illustration. The boards have cross-sectional dimensions of 3.5” by ¾” and are subjectedto an axial tension, P, of 1870 lb.a) Determine the normal and shear stresses acting on the glued joint if = 20o.b) For what joint angle, , will the shear stress on the glued joint be equal (in magnitude) totwice the normal stress on the joint?
- Refer to the given figure: Find: a) Determine the average bearing stress between the bolt head and the wood.b) What is the maximum diameter of a hole can be, if the hole is punched from a plate that has its maximum shear stress at twice its maximum crushing stress? *p = width*Engineering Mechanics (Upvote will be given. Please write the complete solutions and FBDs Legibly. No long explanation needed. Solve in 3 decimal places.) Based on the problem and solution given (see the attached solution) , determine the shear stress in the grain of the timber column shown in the figure. (See the attached image)A hollow circular column of steel (E = 30,000 ksi) is subjected to a compressive load P. The column has length L = 8.0 ft and outside diameter d = 8 in. The load P = 110 kips. (a) If the allowable compressive stress is 8.1 ksi, what is the required inside diameter (inches)? (b) If the allowable shortening of the column is 0.025 in., what is the required inside diameter (inches)?
- STRENGTH OF MATERIALS. Please show the complete solutions. Rate will be given. Answer in 3 decimal places! The plate shown is fastened to the fixed member by eight 16-mm diameter rivets. Compute the polar moment of inertia, J. Determine the value of the loads P so that the maximum shearing stress in any rivet does not exceed 80 MPa. If P = 8200 N, what is the maximum and minimum shearing stress developed in the rivet.Define the terms shear stress and shear strain, illustrating your answer by meansof a simple sketch. Two circular bars, one of brass and the other of steel, are to beloaded by a shear load of 30 kN. Determine the necessary diameter of the bars (a) insingle shear, (b) in double shear, if the shear stress in the two materials must notexceed 50 MN/m2and 100 MN/m2respectively.A rectangular reinforced concrete beam has a cross-section dimensions b=400mm andoverall depth h= 800mm. The beam as shown in the image below carries asuperimposed dead load of 12 kN/m (excluding the self-Weight of the beam) andspecified live load of 20 kN/m. The beam has a compressive strength of 30Mpa andreinforcement yield strength of 400 Mpa a) What is the self weight of the beam? b) What is the modulus of elasticy and yeild strain of reinforcement
- Determine the slenderness ratio and the Euler buckling load for round wooden dowels that are 3.00 m long and have a diameter of (a) 19 mm and (b) 29 mm. Assume E = 14 GPa. Answer:(a) Slenderness ratio = Pcr = N (b) Slenderness ratio = Pcr = NFor the wooden beam sketched in the figure, ask for the mid-span section. a) Determine the normal stresses at points 1, 2, 3 and 4. (Represent the distribution of normal stresses in the section) b) Check the structural safety in relation to normal stresses. (Adopting γt = 3.2 and γc = 2.5) ADDITIONAL DATA / INFORMATION Characteristic strengths of wood: TENSION: σr,t = 52 MPa COMPRESSION: σr,c = 40 MPa1. The following are factors considered in assigning factor of safety due to consequences of failure except a. Variation in the strength of materials purchased b. Direct cost of clearing the debris c. Replacing the structure and its contents d. None of the choices 5. Calculate the depth of neutral axis at balanced condition if the effective depth is 250 mm and fy is 415 MPa. a. 147.78 mm b. 212.50 mm c. 294.12 mm d. 223.25 mm 6. Calculate the stress at the centroid of the tension steel in single layer if the effective depth is 250 mm and the depth of neural axis is 100 mm. a. 800 MPa b. 500 MPa c. 1000 MPa d. 900 MPa 7. Calculate the strain at the centroid of the tension steel in single layer if the effective depth is 250 mm and the depth of neural axis is 100 mm. a. 0.0040 b. 0.0025 c. 0.0050 d. 0.0045