Determine the numbers of cycles to unstable crack growth, in both materials, using the data shown...
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Determine the numbers of cycles to unstable crack growth, in both materials, using the data shown in Table Q3, for an applied cyclic load of 30 kN (R=0). Assume an initial crack of 0.5 mm in each material. Assume rectangular sections with a thickness of 1 mm for each bar and K = 1.120√√ [14] Material HAZ PM Young's modulus, E (GPa) 200 200 Table Q3. Data for HAZ and PM materials Paris coefficient (units of MPa, m) A (m²) 5 20 9.6x10-11 9.6x10-11 L Paris exponent, m (mm) 3 2.59 20 10 Kic (MPa √m) 80 123 Determine the numbers of cycles to unstable crack growth, in both materials, using the data shown in Table Q3, for an applied cyclic load of 30 kN (R=0). Assume an initial crack of 0.5 mm in each material. Assume rectangular sections with a thickness of 1 mm for each bar and K = 1.120√√ [14] Material HAZ PM Young's modulus, E (GPa) 200 200 Table Q3. Data for HAZ and PM materials Paris coefficient (units of MPa, m) A (m²) 5 20 9.6x10-11 9.6x10-11 L Paris exponent, m (mm) 3 2.59 20 10 Kic (MPa √m) 80 123
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Answer rating: 100% (QA)
Solution To determine the number of cycles to unstable crack growth we need to use the ParisErdogan equation which relates the crack growth rate to the applied load and the material properties The equ... View the full answer
Related Book For
Income Tax Fundamentals 2013
ISBN: 9781285586618
31st Edition
Authors: Gerald E. Whittenburg, Martha Altus Buller, Steven L Gill
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