Homework Answers
Request Answer!
We need at least 10 more requests to produce the answer.
0 / 10 have requested this problem solution
The more requests, the faster the answer.
Add Answer to:
(e) An aluminium alloy is to be used as a structural member and the Architect has...
(e) An aluminium alloy is to be used as a structural member and the Architect has...
(e) An aluminium alloy is to be used as a structural member and the Architect has specified a maximum applied stress of 200 MPa. The fracture toughness of the alloy is 47 MPa m2. Determine the maximum external crack length which can be permitted during the manufacturing process. Assume Y = 1 (3 marks)
Question 2. (Total 18 marks) 350 350 300 300 Same plot, but with expanded x axis...
Question 2. (Total 18 marks) 350 350 300 300 Same plot, but with expanded x axis 250 250 200 Stress (MPa) Stress (MPa) 150 $150 100 100 0 0 0 0.02 0.04 0.06 0.12 0.14 0.16 0.18 0 0.08 0.1 Strain 0.001 0.002 0.003 0.004 0.005 0.006 0.007 0.008 0.009 0.01 Strain (a) Determine the % elongation, yield stress and ultimate tensile strength of the material tested above (3 marks) (b) Calculate the elastic modulus of the material tested above...
1-Determine the % elongation, yield stress and ultimate tensile strength of the material tested above 2-Calculate...
1-Determine the % elongation, yield stress and ultimate tensile
strength of the material tested above
2-Calculate the elastic modulus of the material tested above
3-If a 200mm cylindrical rod of the material tested above, with
radius 20mm, was subjected to a tensile load of 200kN, what would
the length be?
4-An underground wastewater steel pipe with 2mm walls carries an
ammonia solution of 40 g/m3. The pipe is in contact with
groundwater (assume 0 g/m3 ammonia). Determine the
diffusion rate...
3. A structural component is fabricated from an alloy that has a plane-strain fracture toughness of...
3. A structural component is fabricated from an alloy that has a plane-strain fracture toughness of 69 MPa, m (69 MPa square root of "m"). It has been determined that this component fails at a stress of 250 MPa when the maximum length of a surface crack is 1.6 mm. What is the maximum allowable surface crack length (in mm) without fracture for this same component exposed to a stress of 250 MPa and made from another alloy that has...
1. A large plate is fabricated from a steel alloy that has a plane strain fracture toughness of 8...
1. A large plate is fabricated from a steel alloy that has a plane strain fracture toughness of 82.4 MPavm. If the plate is exposed to a tensile stress of 345 MPa during service use, determine the minimum length of a surface crack that will lead to fracture. Assume a value of 1.0 for Y. Maximum stress at tip of elliptically shaped crack Pt 2Ery, 1/2 critical stress required for crack propagation in a brittle material πα KIe YoeVra Fracture...
An aircraft component is fabricated from an Al alloy that has a plane strain fracture toughness...
An aircraft component is fabricated from an Al alloy that has a plane strain fracture toughness of 32 MPa·m1/2. It has been determined that fracture results at a stress of 235 MPa when the maximum internal crack length is 1.8 mm. For the same component and alloy, will fracture occur at a stress level of 310 MPa when the maximum internal crack length is 0.9 mm?
2. An aircraft component is fabricated from an aluminum alloy that has a plane strain fracture...
2. An aircraft component is fabricated from an aluminum alloy that has a plane strain fracture toughness of 35 MPa m. It has been determined that fracture results at a stress of 250 MPa when the maximum (or critical) internal crack length is 2.0 mm. For this same component and alloy, will fracture occur at a stress level of 325 MPa when the maximum internal crack length is 1.0 mm? (10 points)
Question 10 (7 marks) Suppose that a BMW car component fabricated from 4340 steel alloy having...
Question 10 (7 marks) Suppose that a BMW car component fabricated from 4340 steel alloy having a plane strain fracture toughness of 50 MPavm is exposed to a stress of 950 MPa. NDT results show there are two cracks. One is a surface crack of 0.60 mm long, and the other is an internal crack of 2 mm long. Will this component experience fracture? Why or why not? Assume that the parameter Y has a value of 1.0. Kjc: Plane...
In a plate of aluminium alloy 7075 a central defect is present with a total length...
In a plate of aluminium alloy 7075 a central defect is present with a total length of 3 mm. a) Calculate the critical stress for fracture using the Griffith criterion and using Kic. b) Explain possible differences. Given: surface tension y,-1.14 10 mm Young's modulus E 7x 104 N/mm2 fracture toughness Kic 1040 N/mm32 Answer a) Griffith ơ,-5.8 MPa. Kki Ơ,-479 MPa
Chapter 9 1. What is the magnitude of the maximum stress that exists at the tip of an internal cr...
Chapter 9 1. What is the magnitude of the maximum stress that exists at the tip of an internal crack having a radius of curvature of 2.5 x 10-4 mm (10-5 in.) and a crack length of 2.5 x 10-2 mm (10-3 in.) when a tensile stress of 170 MPa (25,000 psi) is applied? 2. A large plate is fabricated from a steel alloy that has a plane strain fracture toughness of 55 MPa m (50 ksi in.). If the plate is...
(e) An aluminium alloy is to be used as a structural member and the Architect has specified a maximum applied stress of 200 MPa. The fracture toughness of the alloy is 47 MPa m2. Determine the maximum external crack length which can be permitted during the manufacturing process. Assume Y = 1 (3 marks)
Question 2. (Total 18 marks) 350 350 300 300 Same plot, but with expanded x axis 250 250 200 Stress (MPa) Stress (MPa) 150 $150 100 100 0 0 0 0.02 0.04 0.06 0.12 0.14 0.16 0.18 0 0.08 0.1 Strain 0.001 0.002 0.003 0.004 0.005 0.006 0.007 0.008 0.009 0.01 Strain (a) Determine the % elongation, yield stress and ultimate tensile strength of the material tested above (3 marks) (b) Calculate the elastic modulus of the material tested above...
1-Determine the % elongation, yield stress and ultimate tensile
strength of the material tested above
2-Calculate the elastic modulus of the material tested above
3-If a 200mm cylindrical rod of the material tested above, with
radius 20mm, was subjected to a tensile load of 200kN, what would
the length be?
4-An underground wastewater steel pipe with 2mm walls carries an
ammonia solution of 40 g/m3. The pipe is in contact with
groundwater (assume 0 g/m3 ammonia). Determine the
diffusion rate...
3. A structural component is fabricated from an alloy that has a plane-strain fracture toughness of 69 MPa, m (69 MPa square root of "m"). It has been determined that this component fails at a stress of 250 MPa when the maximum length of a surface crack is 1.6 mm. What is the maximum allowable surface crack length (in mm) without fracture for this same component exposed to a stress of 250 MPa and made from another alloy that has...
1. A large plate is fabricated from a steel alloy that has a plane strain fracture toughness of 82.4 MPavm. If the plate is exposed to a tensile stress of 345 MPa during service use, determine the minimum length of a surface crack that will lead to fracture. Assume a value of 1.0 for Y. Maximum stress at tip of elliptically shaped crack Pt 2Ery, 1/2 critical stress required for crack propagation in a brittle material πα KIe YoeVra Fracture...
2. An aircraft component is fabricated from an aluminum alloy that has a plane strain fracture toughness of 35 MPa m. It has been determined that fracture results at a stress of 250 MPa when the maximum (or critical) internal crack length is 2.0 mm. For this same component and alloy, will fracture occur at a stress level of 325 MPa when the maximum internal crack length is 1.0 mm? (10 points)
Question 10 (7 marks) Suppose that a BMW car component fabricated from 4340 steel alloy having a plane strain fracture toughness of 50 MPavm is exposed to a stress of 950 MPa. NDT results show there are two cracks. One is a surface crack of 0.60 mm long, and the other is an internal crack of 2 mm long. Will this component experience fracture? Why or why not? Assume that the parameter Y has a value of 1.0. Kjc: Plane...
In a plate of aluminium alloy 7075 a central defect is present with a total length of 3 mm. a) Calculate the critical stress for fracture using the Griffith criterion and using Kic. b) Explain possible differences. Given: surface tension y,-1.14 10 mm Young's modulus E 7x 104 N/mm2 fracture toughness Kic 1040 N/mm32 Answer a) Griffith ơ,-5.8 MPa. Kki Ơ,-479 MPa
Chapter 9 1. What is the magnitude of the maximum stress that exists at the tip of an internal crack having a radius of curvature of 2.5 x 10-4 mm (10-5 in.) and a crack length of 2.5 x 10-2 mm (10-3 in.) when a tensile stress of 170 MPa (25,000 psi) is applied? 2. A large plate is fabricated from a steel alloy that has a plane strain fracture toughness of 55 MPa m (50 ksi in.). If the plate is...
Most questions answered within 3 hours.
-
When an object moves through a fluid, the fluid exerts a viscous
force F on the...
asked 11 minutes ago -
Why did the observed chemistry of thallium mislead Mendelev to
place the group 13 element (Tl)...
asked 1 hour ago -
A sine wave signal is displayed on the screen of an
oscilloscope. 6 peak-to-peak divisions are...
asked 3 hours ago -
a
1500 kg car accelerates from 0 to 25 m / s in 21.0s. How much...
asked 5 hours ago -
Calculate the molarity of each of the following solutions:
(a) 30.5 g of ethanol (C2H5OH) in...
asked 4 hours ago -
1 Refer to the build-borrow-or-buy framework as a decision tree
for the Adidas company. Identify a...
asked 5 hours ago -
Problem 2: The Problem of Social Cost. A Rancher and Farmer live
side-by-side to each other....
asked 6 hours ago -
a uniform bar of weight 40N is 4 meter long. weights
on 60N and 100N are...
asked 6 hours ago -
Define Diet counceling? What are the
responsibilities of a counselor?
asked 8 hours ago -
Hey im just confused about how to put the ' A angle n' and ' S...
asked 8 hours ago -
A short essay about the WSJ article on Oreo versus Hydrox.
asked 8 hours ago -
##8. A program contains the following function definition:
##def cube(num):
##return num * num * num...
asked 8 hours ago