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373_Mechanics Homework Mechanics of Materials Solution

373_Mechanics Homework Mechanics of Materials Solution -...

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Unformatted text preview: flmmr—jmt—j iii] h” _ ‘ i. A. 4.103 end 4:104 A bending couple is applied to the bar indicated, musing plastic PROBLEM 4.103 zones 3-m. thick to develop at the top and bottom of the bar. After the couple has been removed, determme (a) the residual stress at y = 4.5 in., (b) the points where the 9 residual stress is zero, (c) the radius of curvature eorres din to the deformation of the bar. P0“ 8 permanent . _ 4.103 Bar of Prob. 4.85 SOLUTION See SOLUTION to PROBLEM 4.85 {of bending coupie and 5+v~ess dis-in'bu‘h'om dun‘na feeding M : 26,46 kW-ih E = qui0‘ psi: 2°1¥IO$ksf I 7 188.5 in! ._ Mc. _ (2c40(4.5) s ., .. '5 ‘ T ‘ W ‘5 -‘ V“ M 4% _-;~ 21.06 ks.- 1 7 188.: M j“; €m=6'—6',.- can-42 = 2i.i7k51' 6" ‘- A+ 3 = yy 6‘"; G"-5; = 2|.os- L12 = —20.‘W 165-“ tmcs: can ks: 2L|7 ks" 4:331 ks: 2039 ksr‘ —2i.l7 "5" UNLOADING REsmUAL STEESSES M 2646 - Zofl‘t ks? 20.7% .7 173.! -H ...
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