Contents Orthotropic Constitutive Models | 3.2. Equations of State | Print page 3.2.2. Polynomial Equation of StateThis is of the form(3–28)where the first term in (3-28) is equivalent to a linear equation of state with the bulk modulus, K’, derived from the orthotropic material stiffness coefficients. « 3.2.1. Shock Equation of State 3.3. Strength Models »