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Problem 1 (35pts) A solid 45.0mm diameter shaft is made out of cold rolled steel with...
The bar is made of mild steel (Sy =245 MPa) and is loaded by the forces...
The bar is made of mild steel (Sy =245 MPa) and is loaded by the forces Fx = 300 N, F, = 450 N, F2 = 300 N, and Mx = 55 N m. - 100 mm (A) Find the principal stresses and the max shear stress at A of the member. (B) Compute the von Mises stress at A. TINTI (C) Compute the factors of safety of the member using the distortion-energy (DE) and maximum-shear-stress (MSS) theories. 15-mm D....
A low carbon steel shaft is designed to have a diameter of 30 mm. It is...
A low carbon steel shaft is designed to have a diameter of 30 mm. It is to be subjected to an axial load (P-30 kN), a moment (M-200 N-m), and a torque (T-300 N-m). Assume the yield stress for the steel is (280 MPa), the Poisson's ratio is (v= 0.29), and the safety factor is (1-1). Calculate the margin of safety using the following failure theories. a.) Rankine Criteria (Maximum Principal Stress) b.) Tresca Criteria (Maximum Shear Stress) c.) Saint...
Problem 3 (17 points) The two static forces are applied to a circular 1-in diameter shaft as shown. The shaft is ma...
Problem 3 (17 points) The two static forces are applied to a circular 1-in diameter shaft as shown. The shaft is made from 1045 CD Steel with a yield strength of 77 ksi. 8 in 1000 lbf 1 in dia. Cross section at the wall 800 lbf (2) a) Identify the location of the most critical stress element. (A. E, F or D?) (10) b) Determine the stresses and draw the stresses on the critical element identified in part a)....
Problems 1. (Subtotal: 21 points) A steady torque of 1500 Ibf in is transmitted by a...
Problems 1. (Subtotal: 21 points) A steady torque of 1500 Ibf in is transmitted by a machined shaft made of steel with an ultimate tensile strength of 100 kpsi. The transverse cross section at the location of a shoulder against which a gear sits is subjected to a bending moment which is a sinusoidal function of time with a maximum of 800 lbf-in. Furthermore, this cross section is the location for the maximum von Mises stress. The smaller diameter at...
Design of Machine Elements PROBLEM 1: A stationary shaft of 1-in-diameter and pulley subjected to a...
Design of Machine Elements
PROBLEM 1: A stationary shaft of 1-in-diameter and pulley subjected to a 2000-lb static load. Determine the following: (70 pts) 1) 2) 3) 4) 5) 6) 7) Bending Stress of Point A Transverse Shear of Point A Torsion Shear of Point A Principal stresses of Point A (o, ?2, and What is the safety factor using the Maximum Normal Stress Theory? What is the safety factor using the Maximum Shear Stress Theory? What is the safety...
For the shaft shown in figure 1, made of AISI steel 1030 CD with Sut =...
For the shaft shown in figure 1, made of AISI steel 1030 CD with Sut = 520 MPa and Sy = 440 MPa., determine the factor of safety based on failure theories for ductile of Maximum Shear Stress and Distortion Energy (Von Misses). The point selected for analysis is determined form the following table. The loads are F= 2.13 kN, P= 5.13 kN, and T = 31.3 N. m. 100 mm B 15-mm D. Р T
Problem 1 (25 Points) Two solid steel (6-80 GPa) shafts are connected by the gears shown. Shaft (1) has a diameter of 45 mm, and shaft (2) has an outside diameter of 55 mm and wall thickness 4 mm...
Problem 1 (25 Points) Two solid steel (6-80 GPa) shafts are connected by the gears shown. Shaft (1) has a diameter of 45 mm, and shaft (2) has an outside diameter of 55 mm and wall thickness 4 mm. Assume that the bearings shown allow free rotation of the shafts. If a 400 N-m torque is applied at gear D, determine (a) the maximum shear stress magnitudes in each shaft. (b) the angles of twist ф, and ф (c) the...
The bar is made of mild steel (Sy =245 MPa) and is loaded by the forces Fx = 300 N, F, = 450 N, F2 = 300 N, and Mx = 55 N m. - 100 mm (A) Find the principal stresses and the max shear stress at A of the member. (B) Compute the von Mises stress at A. TINTI (C) Compute the factors of safety of the member using the distortion-energy (DE) and maximum-shear-stress (MSS) theories. 15-mm D....
A low carbon steel shaft is designed to have a diameter of 30 mm. It is to be subjected to an axial load (P-30 kN), a moment (M-200 N-m), and a torque (T-300 N-m). Assume the yield stress for the steel is (280 MPa), the Poisson's ratio is (v= 0.29), and the safety factor is (1-1). Calculate the margin of safety using the following failure theories. a.) Rankine Criteria (Maximum Principal Stress) b.) Tresca Criteria (Maximum Shear Stress) c.) Saint...
Problem 3 (17 points) The two static forces are applied to a circular 1-in diameter shaft as shown. The shaft is made from 1045 CD Steel with a yield strength of 77 ksi. 8 in 1000 lbf 1 in dia. Cross section at the wall 800 lbf (2) a) Identify the location of the most critical stress element. (A. E, F or D?) (10) b) Determine the stresses and draw the stresses on the critical element identified in part a)....
Problems 1. (Subtotal: 21 points) A steady torque of 1500 Ibf in is transmitted by a machined shaft made of steel with an ultimate tensile strength of 100 kpsi. The transverse cross section at the location of a shoulder against which a gear sits is subjected to a bending moment which is a sinusoidal function of time with a maximum of 800 lbf-in. Furthermore, this cross section is the location for the maximum von Mises stress. The smaller diameter at...
Design of Machine Elements
PROBLEM 1: A stationary shaft of 1-in-diameter and pulley subjected to a 2000-lb static load. Determine the following: (70 pts) 1) 2) 3) 4) 5) 6) 7) Bending Stress of Point A Transverse Shear of Point A Torsion Shear of Point A Principal stresses of Point A (o, ?2, and What is the safety factor using the Maximum Normal Stress Theory? What is the safety factor using the Maximum Shear Stress Theory? What is the safety...
For the shaft shown in figure 1, made of AISI steel 1030 CD with Sut = 520 MPa and Sy = 440 MPa., determine the factor of safety based on failure theories for ductile of Maximum Shear Stress and Distortion Energy (Von Misses). The point selected for analysis is determined form the following table. The loads are F= 2.13 kN, P= 5.13 kN, and T = 31.3 N. m. 100 mm B 15-mm D. Р T
Problem 1 (25 Points) Two solid steel (6-80 GPa) shafts are connected by the gears shown. Shaft (1) has a diameter of 45 mm, and shaft (2) has an outside diameter of 55 mm and wall thickness 4 mm. Assume that the bearings shown allow free rotation of the shafts. If a 400 N-m torque is applied at gear D, determine (a) the maximum shear stress magnitudes in each shaft. (b) the angles of twist ф, and ф (c) the...
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