LARSA 4D includes all of the standard elastic analysis types found in finite element structural analysis software.
Linear Elastic Static
Linear/Nonlinear Time History
Response Spectrum Analysis
Moving Load (Marched Pattern)
Nonlinear Static with Geometric and Material Nonlinearity
The following solver types are available for all analyses:
Intel LAPACK Solver: Used for small-to-medium sized models and for checking instability, optimized for Intel CPUs.
Intel Parallel Sparse Solver: An advanced sparse solver by Intel which takes advantage of multi-core/multi-CPU computers and is designed for large models.
Beam and Truss
Cable with rebirth
Thin or Thick Plate Behavior
Quadratic or Bilinear Membrane Behavior
Drilling Degrees of Freedom
Grounded Spring (translational/rotational)
2-Node Spring (translational/rotational)
Coupled 6x6 Foundation Spring
Hook and Gap Element
8-Node Brick Element
Joint loads in global or user-coordinate-system directions.
Beam Loads: point, trapezoidal, uniform, partial, and distributed, in local, global, and projected directions.
Point and uniform loads on plate/shell and brick elements
Automatic self-weight for all elements.
Thermal loading for all elements.
Pre-stressing for cable, truss, and beam.
Post-tensioning cable elements with option to lock the cable tension.
User coordinate systems can be rectangular, cylindrical, spherical.
Displacement coordinate systems for joints using user coordinate systems.
Supports, springs, and loads specified in global or user coordinate systems.
Member rigid end zones, semi-rigid connections, end-offsets.
Slaved degrees of freedom
Nonprismatic tapered sections.
Member reference axis and centroid offsets allow nonprismatic sections to be placed in a model easily.