Question

5-13. A rectangular rosette is attached to a steel plate having E 30 106 psi and v-03. The strain measurements are: (a) ε 500 μ¡n./in., ε.-300 μ¡n./in., and -100 μίη./in. (b) ε.-305 μ¡n./in., ε.-75 μ¡n./in., and ε.-150 μ¡n./in. Calculate the prin- cipal strains and stresses and the maximum shear stress. Locate the axis of the principal stress.

Answer 1

in ь = 30。.uin- 300x10 in -loo.uin 밞-loo X1。 in Normal shain in Clny dlirechon, 2 2. 2

in Pincipl Shr cin -6 e, = 516-23 lo 6, -116.23 xi。 = 1-0.32 1ーじ ( 116.23x)。' 叮= 15863°. 44 Psi 1- 0.32 1ος 1273 . 81 pse

Tua, = 叮-G = ISTs-.gf-1273-81 てmor = 78708.32 ト以 tin 28 26r= 18.43 '.、. in 150,Uin in in .15 ih が.3.5 쓰

2 305-1S 2, (-30511 1-122 '263구.sy 叮 トsd = 2 maxim um he ), -30S 305-1J 26『 =-63.oc' er --31.53 n353+9o 58-47