hw15sol

# hw15sol - 'P L-E 2 Co • ~ A =-£'5 t=e(O.7>t/O f(O_OI...

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Unformatted text preview: 'P L _-E..- _ 2.- Co • ~ A =-£'5- t=e..- (O .7'>t' /O f.) (O_OI\) = :<59.7'-1'><!IO "". d ~ J 4A =j ( Lf) (~ 5e.r . 7 "' ~ / D-' )- .0/& 1'1 ;1'1. 11 , It . 2 '= 7.7ox/O'!o f~: 7.70ks; :<S"f.7t.t x I D- ~ ; " ;Problem 2.5 0.01' L L 'PL = AI:, A= ~ J~ 6": ..E. .-:: A . = 2.5 A nylon thread is subjected to a 2-1btension force: Knowing that E = 0.7 . x ' 10 6 psi. and that the length of the thread increases by 1.1 %, determine (a) the diameter ofthe thread, (b) the stress in the thread. ' o. Oil 7... ~111 \'1'1 2.13 The 4-mm-diameter cable Be is made ofa steel with E= 200 GPa. Knowing that the maximum stress in the cable must not exceed 190 MPa and that the, elongation ofthe cable must not exceed 6 mm, find the maximum load P that can be .applied as shown. L8C =~b4+lf2.. = ~L MA = 3.\$ P - (G )('~1I1 ~o)= 'P:: o . ~SOCf ~t. o.jjo..,; a.-~ 1, s+r-ess 0= I eto '.,( 10 E> 'P~ = .{f(O.OO'f)L '= u..s,~ "'/0·' y,,4 :. ~c;::- 6A ~ 090>tIOt.')(I:?;;'~6xlo-6)::: ~.g88)(lO~ N 1-- 4.0 m~ Cor, sl J...
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hw15sol - 'P L-E 2 Co • ~ A =-£'5 t=e(O.7>t/O f(O_OI...

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