478 CHAPTER 15 Bending of Open and Closed, Thin-walled Beams
P.15.17ThebeamsectionshowninFig.P.15.17issubjectedtoatemperaturechangewhichvarieswithysuchthat
T=T 0 y/2a.Determinethecorrespondingchangesinthestressresultants.Young’smodulusforthematerialofthe
beamisE,whileitscoefficientoflinearexpansionisα.
Ans. NT=0,MxT= 5 Eαa^2 tT 0 /3,MyT=Eαa^2 tT 0 /6.Fig. P.15.17