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364_Mechanics Homework Mechanics of Materials Solution

# 364_Mechanics Homework Mechanics of Materials Solution -...

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Unformatted text preview: 4.91 and 4.92 Determine the plastic moment M, of a steel beam of the cross section PROBLEM 4-92 shown, assuming the steel to be elastoplastic with a yield strength of 240 MPa. TOT mm SOLUTION J L—J-25 mm—Je-‘l 10mm 10mm = ———~ = 23.75 m» = 0.02375 m 2. To'i’o.) area A = (25 KID) 4- (2)00X35) "' 7.50 MM EVA. 2 (anxIO‘)(0.025‘)(o.oxo\= sovxo‘ N 30-2.3.7.5 =‘ («3.25 m : 0.0052; m = EVA, = flzwono‘MMzoXO.01:25)= scrum" N 32 -' ﬁaouzs) 0.005625 M Q3 = 6M2. : C240ud)(o.o.to\(0.02375) = My lo’ N .9 3", = Jaw = 0.01'1875 In .- (eortosx 0.00625} + {Junoa )(0.005g25)+ (Hd :1 lo“)(o.ot)875) = 2.03:5me NW, 2 2.03 km.” ...
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