Contents Chapter 3: Theory Documentation | 3.2. Finite Element Based Homogenization | 3.2.1. Modeling Assumptions | Print page 3.2.1.1. Lattice StructuresLattice structures are made of one isotropic linear-elastic material.Lattice structures are periodic.Lattice structures consist of trusses that are cylindric. « 3.2.1. Modeling Assumptions 3.2.1.2. Unidirectional (UD) Composites »