Sinh1D Uniaxial Elastic Material Using \(\sinh\) Syntax Text Only1 2 3 4material Elastic1D (1) (2) [3] # (1) int, unique material tag # (2) double, elastic modulus # [3] double, density, default: 0.0 Theory The constitutive equation is defined as \[ \sigma=E\sinh(\epsilon), \] where \(E\) is the elastic modulus and \(\epsilon\) is the strain.