ElasticOS Isotropic Elastic Material For Open Sections Syntax Text Only1 2 3 4 5material ElasticOS (1) (2) (3) [4] # (1) int, unique tag # (2) double, elastic modulus # (3) double, poissons ratio # [4] double, density, default: 0.0 Remarks It has two DoFs. The elastic stiffness can be expressed as K=[E00E2(1+ν)]