1. For an isotropic material with E = 70 GPa ? = 0.3 ca

1. For an isotropic material with E = 70 GPa ? = 0.3 calculate the stresses resulting from the following applied strains: ? ? ? ? ? ? ??? ? ? ?? ? ? ? ? ??? ? ? ??? ? 0 100 0 .001 .001 .002 ?
?S? and ?S ? for a material with E1 = 190 GPa E2 = 9.9 GPa G12 = 7.8 GPa ?12 = 0.35. Show your work. 2. Calculate
x is applied at 30? from the fiber axis. a) Calculate the strains (transformed coordinate system) resulting from the following applied stresses: ? ? MPa x ?? ?? ? ?? ?? ? ? 50 50 100 ? b) Calculate ? ? 1 ? . 3. For the material in problem 1 assume that ?
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