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Confusedbiomedeng
Homework Statement
A rectangular Cross-section beam, 20cm deep by 10cm wide, is subjected to a maximum bending moment of 360kNm
A) Calculate the second moment of area of the beam cross-section
B) what is the maximum stress in the beam under this load
C) if the value of E for the beam of material is 208x109 n\M2 , determine the radius of curvature for that portion of the where the bending moment is 360kNm
Homework Equations
Ina=bh3/12 σ/y=m/Ina=E/R
The Attempt at a Solution
A)Ina=(0.1)(0.23)/12 =0.00006M3
B)σ/20/2=360x103/0.00006 σ=6x1010
C) 360x103/0.00006=208x109/R R=0.028mjust wondering if this is correct?