An elastoplastic material with strain hardening has an elasto-plastic stressstrain relation. The modulus of elasticity (E)...
An elastoplastic material with strain hardening has an elasto-plastic stressstrain relation. The modulus of elasticity (E) is 25x106 psi, yield strength is 70 ksi, and the slope of the strain hardening portion of stress-strain diagram is 3x106 psi Problem # 4 Calculate: A) the strain that corresponds to a stress of 80 ksi B) If the 80-ksi stress is removed, calculate the permanent strain
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An elastoplastic material with strain hardening has an
elasto-plastic stressstrain relation. The modulus of elasticity (E)...
Problem 2. A concrete beam is reinforced by three steel rebars placed as shown. The modulus...
Problem 2. A concrete beam is reinforced by three steel rebars placed as shown. The modulus of elasticity is 3x106 psi for concrete and 29x106 psi for steel. Find the tensile stress in rebars and maximum compressive stress in concrete under an external bending moment of (a) 80 kip.in and (b) 240 kip.in. Given the compressive strength of concrete fe' = 3 ksi and yield stress of rebars fy = 60 ksi, discuss the state of crack in concrete and...
Calculate the modulus of resilience for the material having the stress-strain behavior shown in the Animated...
Calculate the modulus of resilience for the material having the
stress-strain behavior shown in the Animated Figure 6.12.
Tensile strength 450 MPa (65,000 psi) Strain 0 Stress 0 MPA Stress 0 psi 500 70 Strain0 Stress 0 MPA Stress 0 psi 60 400 103 ps 50 MPa 40 Yield strength 250 MPa (36,000 psi) 300 40 0 200 30 200 30 20 100 20 10 100 10 0.10 0.20 0.30 0.40 Strain
Stress-Strain Curve 39· Material Type (l ot J) 40 Modulus of Elasticity 41. Stress Axis 42....
Stress-Strain Curve 39· Material Type (l ot J) 40 Modulus of Elasticity 41. Stress Axis 42. Strain Axis G K l-ductile J-brittle 43.Yield Point 4Fracture Point 45. Ultimate Strength Bonus 2: If the force is removed when the material is at point F, what will happen to the material?
1. A state of strain (Ex) on a surface of material with modulus of elasticity E-30x10* psi is giv...
1. A state of strain (Ex) on a surface of material with modulus of elasticity E-30x10* psi is given as if the possion's ratio for material is given by s 0.3, and shear stress at the same section is given as 20 Kpsi, find normal stress, and Lateral Stress σ , and from these values and shear stress find principal stresses and maximum shear stress at the section and their directiohal angles. {knowing σ «E ε and ơy--μο, )
1....
The material for the tension specimen has the stress-strain diagram shown. Determine approximately the modulus of...
The material for the tension specimen has the stress-strain diagram shown. Determine approximately the modulus of elasticity E2. Р 0.5 in o (ksi) 45 36 E2 E1 0.0012 0.003 € (in/in) 3000 ksi 4000 ksi 4500 ksi C 5000 ksi
5. A metal has a modulus of elasticity of 70 GPa, yield strength of 210 MPa,...
5. A metal has a modulus of elasticity of 70 GPa, yield strength of 210 MPa, Poisson's ratio 0.33 and an area of cross section of 9 mm? A. Calculate the area of cross section when a tensile stress of 140 MPa is applied on this metal (6 points) B. In a new experiment, a stress of 280 MPa is applied on this metal. Then the stress is completely removed. Again a stress of 350 MPa is applied. Then this...
Mechanics of Materials Problem 4. (20 points) σ(ksi) material A 100 material B 90 60 material...
Mechanics of Materials Problem
4. (20 points) σ(ksi) material A 100 material B 90 60 material C 40 01 .015 .02 05 06 what is the value of the modulus of elasticity for material B? What is the value of the yield stress for material A? What is the value of the ultimate tensile strength for material C? What is the value of the fracture strength of material A? Calculate the strain energy density required to yield material B: ....
Problem 1 The elastic portion of the stress-strain diagram of the tested material is given below....
Problem 1 The elastic portion of the stress-strain diagram of the tested material is given below. The specimen from which it was obtained had an original diameter of 0.5 in and a gauge length of 2 inches. When the applied load on the specimen is 4573 lb, the diameter is 0.49985 in. Determine the specimen length in inches when the load of 4573 lb is applied and calculate the material's Poisson ratio. Calculate also the rigidity modulus G in ksi....
Material Modulus of Maximum Axial Maximum Shear Stress (o) Elasticity (E) Stress (t) Brass Steel Wood...
Material Modulus of Maximum Axial Maximum Shear Stress (o) Elasticity (E) Stress (t) Brass Steel Wood inum 10,500 ksi16 ksi 22 ksi 30 ksi 15,000 ksi 29,000 ksi 1,600 ksi 10 ksi 13 ksi 20 ksi 90 psi 1000 psi 2) A rectangular cantilever bearm is loaded by a moment Mo = 4500 ft-lbs at its end as shown below. The length of the beam is L 4 ft and the height of the beam is h 3 in. If...
References Tensile strength 450 MPa (65,000 psi) Strain = 0 Stress = 0 MPA Stress =...
References Tensile strength 450 MPa (65,000 psi) Strain = 0 Stress = 0 MPA Stress = 0 psi 500 1 Strain = 0 Stress = 0 MPA Stress = 0 psi 103 psi 40 MPa 300 Yield strength 250 MPa (36,000 psi) 200 - 30 Stress (MPa) 2001 Stress (10 psi) 100% okuloobs 0.10 0.20 0.30 Strain References Brinell hardness number = 0 BHN Rockwell hardness = ... Rockwell hardness Tensile strength = 0 MPA Tensile strength = 0 ksi...
Problem 2. A concrete beam is reinforced by three steel rebars placed as shown. The modulus of elasticity is 3x106 psi for concrete and 29x106 psi for steel. Find the tensile stress in rebars and maximum compressive stress in concrete under an external bending moment of (a) 80 kip.in and (b) 240 kip.in. Given the compressive strength of concrete fe' = 3 ksi and yield stress of rebars fy = 60 ksi, discuss the state of crack in concrete and...
Calculate the modulus of resilience for the material having the
stress-strain behavior shown in the Animated Figure 6.12.
Tensile strength 450 MPa (65,000 psi) Strain 0 Stress 0 MPA Stress 0 psi 500 70 Strain0 Stress 0 MPA Stress 0 psi 60 400 103 ps 50 MPa 40 Yield strength 250 MPa (36,000 psi) 300 40 0 200 30 200 30 20 100 20 10 100 10 0.10 0.20 0.30 0.40 Strain
Stress-Strain Curve 39· Material Type (l ot J) 40 Modulus of Elasticity 41. Stress Axis 42. Strain Axis G K l-ductile J-brittle 43.Yield Point 4Fracture Point 45. Ultimate Strength Bonus 2: If the force is removed when the material is at point F, what will happen to the material?
1. A state of strain (Ex) on a surface of material with modulus of elasticity E-30x10* psi is given as if the possion's ratio for material is given by s 0.3, and shear stress at the same section is given as 20 Kpsi, find normal stress, and Lateral Stress σ , and from these values and shear stress find principal stresses and maximum shear stress at the section and their directiohal angles. {knowing σ «E ε and ơy--μο, )
1....
The material for the tension specimen has the stress-strain diagram shown. Determine approximately the modulus of elasticity E2. Р 0.5 in o (ksi) 45 36 E2 E1 0.0012 0.003 € (in/in) 3000 ksi 4000 ksi 4500 ksi C 5000 ksi
5. A metal has a modulus of elasticity of 70 GPa, yield strength of 210 MPa, Poisson's ratio 0.33 and an area of cross section of 9 mm? A. Calculate the area of cross section when a tensile stress of 140 MPa is applied on this metal (6 points) B. In a new experiment, a stress of 280 MPa is applied on this metal. Then the stress is completely removed. Again a stress of 350 MPa is applied. Then this...
Mechanics of Materials Problem
4. (20 points) σ(ksi) material A 100 material B 90 60 material C 40 01 .015 .02 05 06 what is the value of the modulus of elasticity for material B? What is the value of the yield stress for material A? What is the value of the ultimate tensile strength for material C? What is the value of the fracture strength of material A? Calculate the strain energy density required to yield material B: ....
Problem 1 The elastic portion of the stress-strain diagram of the tested material is given below. The specimen from which it was obtained had an original diameter of 0.5 in and a gauge length of 2 inches. When the applied load on the specimen is 4573 lb, the diameter is 0.49985 in. Determine the specimen length in inches when the load of 4573 lb is applied and calculate the material's Poisson ratio. Calculate also the rigidity modulus G in ksi....
Material Modulus of Maximum Axial Maximum Shear Stress (o) Elasticity (E) Stress (t) Brass Steel Wood inum 10,500 ksi16 ksi 22 ksi 30 ksi 15,000 ksi 29,000 ksi 1,600 ksi 10 ksi 13 ksi 20 ksi 90 psi 1000 psi 2) A rectangular cantilever bearm is loaded by a moment Mo = 4500 ft-lbs at its end as shown below. The length of the beam is L 4 ft and the height of the beam is h 3 in. If...
References Tensile strength 450 MPa (65,000 psi) Strain = 0 Stress = 0 MPA Stress = 0 psi 500 1 Strain = 0 Stress = 0 MPA Stress = 0 psi 103 psi 40 MPa 300 Yield strength 250 MPa (36,000 psi) 200 - 30 Stress (MPa) 2001 Stress (10 psi) 100% okuloobs 0.10 0.20 0.30 Strain References Brinell hardness number = 0 BHN Rockwell hardness = ... Rockwell hardness Tensile strength = 0 MPA Tensile strength = 0 ksi...
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