A [0/30/-45] graphite/epoxy laminate is subjected to an Nx = Ny = 1000 N/mm load. Using the properties of unidirectional graphite/epoxy from Table and assuming that each lamina is 5 mm thick, determine 1. Midplane strains and curvatures 2. Global and local stresses on the top surface of 30 ply 3. Percentage of load, Nx, taken by each ply 4. Considering maximum stress theory, what would be the potential failure mode? 5. Summarize the findings by filling in the table below TABLE 2.1 Typical Mechanical Properties of a Unidirectional Lamina (SI System of Units) Glass/ Boron/ Graphite/ Property Symbol Units Fiber volume fraction VE 0.45 0.50 0.70 Longitudinal elastic modulus E GPa 38.6 204 181 Transverse elastic modulus E2 GPa 8.27 18.50 10.30 Major Poisson's ratio V12 0.26 0.23 0.28 Shear modulus G12 GPa 4.14 5.59 7.17 Ultimate longitudinal tensile (i) alt MPa 1062 1260 1500 strength Ultimate longitudinal (01) MPa 610 2500 1500 compressive strength Ultimate transverse tensile (02) wit MPa 31 159 61 40 strength Ultimate transverse (02) alt MPa 118 202 246 compressive strength Ultimate in-plane shear (T12) MPa 72 67 68 69 strength Longitudinal coefficient of m/m/C 8.6 6.1 0.02 thermal expansion Transverse coefficient of 02 m/m/C 22.1 30.3 22.5 thermal expansion Longitudinal coefficient of m/m/kg/kg 0.00 0.00 0.00 moisture expansion Transverse coefficient of B m/m/kg/kg 0.60 0.60 0.60 moisture expansion