# Technical Reports¶

The following PARMES technical reports are currently available:

 Co-rotated and reduced order finite element time integrators for multibody contact dynamics TR1 This report describes the finite element formulations and time integrators, implemented in Solfec, and available as “DEF_LIM” integrator choice, and “TL”, “BC”, “BC–RO” and “BC–MODAL” formulation choice, for the Solfec’s input BODY command. These formulations allow to vary the amount of deformation expressed by a finite element mesh and facilitate saving computational time and storage. They may be helpful in the context of multibody modeling.