Before revision: Constitutive assumptions The constitutive relations for two-dimensional orthotropic linear elastic materials are The assumptions of sandwich theory lead to the simplified relations and The equilibrium equations in two dimensions are The assumptions for a sandwich beam and the equilibrium equation imply that Therefore, for homogeneous facesheets and core, the strains also have the form Kinematics 450px |Bending of a sandwich beam.
After revision: Constitutive assumptions The constitutive relations for two-dimensional orthotropic linear elastic materials are The assumptions of sandwich theory lead to the simplified relations and The equilibrium equations in two dimensions are The assumptions for a sandwich beam and the equilibrium equation imply that Therefore, for homogeneous facesheets and core, the strains also have the form Kinematics upright=1.7 |Bending of a sandwich beam.