Compute the stresses (laminate coordinates) at z = −1.27 mm using the results of Exercise…


Compute the stresses (laminate coordinates) at z = −1.27 mm using the results of Exercise 6.18. Note that θ = 30°.

Exercise 6.18

Given  =  = , = 0 and κx = 1.0 m−1 , κy = 0.5 m−1 , κxy = 0.25 m−1 , scold the strains (in laminate coordinates) at z = −1.27 mm in the laminate of Exercise 6.7.

Exercise 6.7

Find σ1, σ2, and σ6 at z = 0, on twain laminae of a laminate [±30]T topic to N= = 1 N/m (all cherishing forces and moments correspondent to naught), delay t1 = t2 = 1.27 mm, E1 = 137.8 GP a, E= = 9.6 GP a, G= = 5.2 GP a, ν12 = 0.3.