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You are supplying pressurised water through a copper tube (oy = 180 MPa, K1c = 18 MPa m72). The tube is subjected to a fluctuating load of 100 MPa which is opening a surface crack with an initial length of 3.5 mm ? How many cycles will cause this tube to fail in fatigue? Assume Y=1 & A = 7 x 10-13 m(MN - m3/2)-3. The number of cycles to fatigue failure is governed by the follow equation (as provided in contact session):

You are supplying pressurised water through a copper tube (oy = 180 MPa, K1c = 18 MPa m72). The tube is subjected to a fluctuating load of 100 MPa which is opening a surface crack with an initial length of 3.5 mm ? How many cycles will cause this tube to fail in fatigue? Assume Y=1 & A = 7 x 10-13 m(MN - m3/2)-3. The number of cycles to fatigue failure is governed by the follow equation (as provided in contact session):

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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You are supplying pressurised water through a copper tube (oy = 180 MPa, K1c = 18 MPam1/2). The tube is subjected to a fluctuating load of 100 MPa which is opening a surface crack with an initial length of 3.5 mm ? How many cycles will cause this tube to fail in fatigue? Assume Y=1 & A = 7 x 10-13 m(MN - m3/2)-3. The number of cycles to fatigue failure is governed by the follow equation (as provided in contact session): 1 1 N = A(YA0VT)3 Lva, 1,500,000 2,700,000 4,200,000 4,900,000 3,700,000
Transcribed Image Text:You are supplying pressurised water through a copper tube (oy = 180 MPa, K1c = 18 MPam1/2). The tube is subjected to a fluctuating load of 100 MPa which is opening a surface crack with an initial length of 3.5 mm ? How many cycles will cause this tube to fail in fatigue? Assume Y=1 & A = 7 x 10-13 m(MN - m3/2)-3. The number of cycles to fatigue failure is governed by the follow equation (as provided in contact session): 1 1 N = A(YA0VT)3 Lva, 1,500,000 2,700,000 4,200,000 4,900,000 3,700,000
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