MIL-HDBK-17-3F Volume 3,Chapter 1 General Information Lamina Laminate 3.Thickness ◆z,Thickness 2,Transverse y,Transverse 1.Longitudinal x,Longitudinal Notation=Hik Where, o,t:Applied Normal,Shear Stress F:Allowable Stress Note:vMajor Poisson's Ratio- e H= e,Y:Extensional,Shear Strain v=Minor Poisson's Ratio- e E.G:Young's,Shear Modulus v;Poisson's Ratio e 1;Longitudinal c;Compression 2;Transverse -Lamina t:Tension 3;Thickness s;Shear 12,13.32:Shear,Poisson's- i= x;Longitudinal [y:Yield y;Transverse Laminate k✉ u:Ultimate,Not Used z:Thickness for Stiffness xy.xz,zy:Shear,Poisson's Examples, -Lamina Ultimate Transverse Tensile Allowable Stress Laminate Compressive Young's Modulus,Thickness Direction FIGURE 1.3.1 Mechanical property notation. 1-3MIL-HDBK-17-3F Volume 3, Chapter 1 General Information 1-3 FIGURE 1.3.1 Mechanical property notation