Question

Consider the metal specimen with KIC =64 MPa-sqrt(m); edge crack measures 15.398 mm; Y = 1.05; Paris’ m = 3.1 and Paris’ A = 3.2E-12 meters / (cycle-MPa-sqrt(m)) ^3.1). Use Excel and Goal Seek to estimate the cyclic tensile stress amplitude that results in fatigue life of 0.534E6 cycles.

Answer 1

fwer PAGE 1 GIVEN CONJIDERANO Metal specines with kic . cumpa szotim) 1539 mm Edge Croct measure Paris m Saarempio cycle apa Paris A 3.26 - 12 mt - 160 MPa a 15.398 mm To cternine the critical crant length COLE) al e uar Тас bu 1.05 x 160 x tac Stac 64 0-38095 Tac (003 8095)² (6.38095k a 2 77 0.046laue ac -0.046194n Now Paris law : No ( ) [amine - of ACUA a)" 7 [ 01539) 3.1/2-1 3.2 110 (L-05X160X VTT)37 CE

آهن - ) [4451 S0432 دی۔ 3. a۸۱۵ (30 (143ه 2) 95.8*8 (1.818 ) ۹۹ su118 •0c + Ng - معلن 144 143.S = please upoote CS Sched with me