The geometric configuration of a typical Centre Cracked Tension (CCT) specimen is shown in Figure3(a). The...
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The geometric configuration of a typical Centre Cracked Tension (CCT) specimen is shown in Figure3(a). The specimen has a width (W) of 100 mm, a length of L= 100 mm. The specimen thickness (B) is 2 mm. Consider three crack lengths a/W = 0.1, 0.15 and 0.2. The Young's modulus E, yield strength, and ultimate tensile stress UTS of CCT specimen are 207 GPa, 250 MPa, and 350 MPa, respectively. The fracture toughness of is 15.8 MPaym (or 500 MPamm and Paris' law coefficients for this material are |C=9x 10-13 and m = 3.6. W 2a where O (b) Figure 3. (a) Schematic of the centre cracked Tension (CCT) specimen, (b) FEA model of half of CCT specimen. 3.1(a) Calculate mode I stress intensity factor (SIF) for the CCT specimen for a/W = 0.1, 0.15 and 0.2 using the following equation when P = 30 kN. Summarise the results in a Table. K = Yona Y = 1 +0.256 ()-1.152 (+ 122 ( The geometric configuration of a typical Centre Cracked Tension (CCT) specimen is shown in Figure3(a). The specimen has a width (W) of 100 mm, a length of L= 100 mm. The specimen thickness (B) is 2 mm. Consider three crack lengths a/W = 0.1, 0.15 and 0.2. The Young's modulus E, yield strength, and ultimate tensile stress UTS of CCT specimen are 207 GPa, 250 MPa, and 350 MPa, respectively. The fracture toughness of is 15.8 MPaym (or 500 MPamm and Paris' law coefficients for this material are |C=9x 10-13 and m = 3.6. W 2a where O (b) Figure 3. (a) Schematic of the centre cracked Tension (CCT) specimen, (b) FEA model of half of CCT specimen. 3.1(a) Calculate mode I stress intensity factor (SIF) for the CCT specimen for a/W = 0.1, 0.15 and 0.2 using the following equation when P = 30 kN. Summarise the results in a Table. K = Yona Y = 1 +0.256 ()-1.152 (+ 122 (
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