● Question 5 0 out of 10 points A cylindrical tube happens to experience an ingress of hydrogen at pressures residing in

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Question 5 0 Out Of 10 Points A Cylindrical Tube Happens To Experience An Ingress Of Hydrogen At Pressures Residing In 1 (204.13 KiB) Viewed 19 times

● Question 5 0 out of 10 points A cylindrical tube happens to experience an ingress of hydrogen at pressures residing in the vicinity of 0.534 MPa while outer tube walls are surrounded by hydrogen at inferior pressures that are approximately 0.0159 MPa. Consider the tubing to possess a thin wall where the inner radius amounts to 0.176 m. The material out of which the tube is fabricated experiences a departure from elastic behavior at a threshold stress value of 106 MPa that is characteristic of room temperature mechanical peformance. By virtue of thermally- induced strain relaxation of the material with rise in temperature it is anticipated that the room temperature yield strength depreciates by 4 MPa with every 21 °C increment of increase in temperature. Determine the minimum wall thickness that might be adopted for the tubing whilst still avoiding the risk of plastic deformation even up to 333 °C. Take room temperature to be 20°C. Take the circumferential stress for a thin walled tube serving under a through-thickness pressure gradient to be New Section 1 Page 1 r.Ap g= 4At where, r, is the inner ius of the tube, Ap, is the pressure gradient through thickness, At, is the wall thickness. Through collective exprience pertaining to the design of such a system it is advisable to use a factor of safety of 2.6. Provide the answer in meters and down to the 4th decimal place (DON'T use exponential form)