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Answers to Chapter 7 7.17) (a) x 0 y 0 = & 0 : 30 MPa, (b) ± x 0 = 2 : 92 MPa 7.18) (a) x 0 y 0 = 520 psi, (b) ± x 0 = 300 psi 7.22) (a) = 399 kPa, (b) ± = 186 kPa 7.8) (a) ² p = 30 : 96 ; 59 : 04 , (b) ± max = 52 MPa, ± min = 84 MPa 7.24) (a) ² p = 17 : 0 ; 73 : 0 from z -axis (Text), ± 1 = 205 psi ( ² p = 17 : 0 from z -axis) and ± 2 = 2187 psi ( ² p = 73 : 0 from z -axis), (b) max = 1196 psi 7.25) ± max = 35 : 4 MPa, ± min = 35 : 4 MPa, max = 35 : 4 MPa 7.46) see Problem 7.24 7.47) see Problem 7.25 7.48) ± max = 12 : 18 MPa, ± min = 48 : 74 MPa, max = 30 : 46 MPa 7.66) (a) max = 100 MPa, (b) max = 110 MPa 7.68) (a) max = 55 MPa, (b)
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Unformatted text preview: max = 50 MPa 7.71) (a) ± max = 39 ksi, ± min = 0 , & max = 19 : 5 ksi (b) ± max = 39 ksi, ± min = 5 ksi, & max = 17 ksi (c) ± max = 39 ksi, ± min = & 9 ksi, & max = 24 ksi 7.106) ± max = 11 : 82 ksi, & max = 6 : 01 ksi 7.110) p = 3 : 29 MPa 7.122) ± max = 68 : 64 MPa, & max = 34 : 32 MPa 1...
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