Supplemental materials - eesd-epfl/OpenSees GitHub Wiki
The formulation of the macroelement is presented in the paper: Vanin F., Penna A., Beyer K. (2019), A three-dimensional macro-element for modelling of the in-plane and out-of-plane response of masonry walls, submitted to Earthquake Engineering and Structural Dynamics.
The derivations that are not included in the paper can be downloaded here. They include:
- the exact compatibility equations for large displacements
- the expression of the incremental equilibrium matrix for the P-Delta formulation
- the derivation of equilibrium conditions when distributed loads are applied
- the expressions defining the nonlinear elastic sectional model for flexure
- the derivation of the consistent and lumped mass matrices and a discussion on the introduced error.