DYNAFLOW

Category  Numerical analysis (general) 
Publisher  Princeton University 
Platform  DOS, Win95/98, WinNT, UNIX, Super computers with parallel processing 
Status  Commercial 
Description  DYNAFLOW is a finite element analysis program for the static and transient response of linear and nonlinear two and threedimensional systems. In particular, it offers transient analysis capabilities for both parabolic and hyperbolic initial value problems in solid, structural and fluid mechanics. There are no restrictions on the number of elements, the number of load cases, the number of loadtime functions, and the number or bandwidth of the equations. Despite large system capacity, no loss of efficiency is encountered in solving small problems. In both static and transient analyses, an implicitexplicit predictor(multi) corrector scheme is used. The nonlinear implicit solution algorithms available include: successive substitutions, NewtonRaphson, modified Newton and quasiNewton (BFGS and Broyden updates) iterations, with selective line search options. Features include: Multifield/physics analysis capabilities via selective specification of multiple solution staggers; Multistaggered solution analysis options; Vectorized coding designed to fully exploit the architecture of vector and/or parallel machines; Coupled field equation capabilities for treatment of thermosolids, saturated porous media, multiphase flows, and piezoelectric solids; Arbitrary EulerLagrange description options for fluid and/or fluidstructure(soil) interaction problems; Generalized convective, radiative and enclosure radiative boundary condition options for heat transfer analysis; Prescribed nodal and/or surface forces options; Prescribed nodal displacement, velocity or acceleration options; Prescribed arbitrary loadtime functions; Earthquake acceleration time history generation capability, for earthquake motions compatible with prescribed acceleration response spectra; Prescribed consistent freefield motion capability; Wave transmitting boundaries; Isoparametric data generation schemes (Cartesian, Cylindrical/Polar and Spherical); Element birth/death options to model addition (birth) or removal (death) of elements (material) in the physical system; Layout optimization analysis capabilities; Capability to perform constitutive experiments along prescribed stress and/or strain paths on selected material elements within the finite element mesh; Complete restart capabilities with options to selectively change input data; Graphics postprocessing capabilities including mesh plots (2D/3D) displacement/ velocity vector plots, contour plots of selected nodal/field quantities, flownets, time history line plots of selected nodal/field quantities. Fully interactive colour postprocessors (2D/3D), with animation options; Fully integrated interface with the graphical pre and postprocessing program FEMGV; Free input format mode organized into data blocks by means of corresponding macro commands. The element library contains a onedimensional, twodimensional, and threedimensional continuum element with axisymmetric options. An interface element with Coulomb friction, a contact element, a slideline element with either perfect friction or frictionless conditions, a slideline element with Coulomb friction, a truss element, a beam element, a plate/shell element, a membrane element, a boundary element and a link element are also available for two and threedimensional analysis. The material library contains a linear isotropic elastic model, a linear orthotropic elastic model, a nonlinear hyperelastic model, a nonlinear Von Mises viscoelastic model, a diffusive transport model, a linear/nonlinear thermal model, a linear/nonlinear heat conduction model, a linear piezoelectric model, a Newtonian fluid model, a Von Mises elasto(visco)plastic model, a DruckerPrager elasto(visco)plastic model, a MohrCoulomb (Matsuoka's) elasto(visco)plastic model, an elastoplastic Cap model, a multimechanism (Ishihara's) elastoplastic model, and a family of multiyield elasto(visco)plastic models. 
Data formats supported  None stated 
Supplier in United States of America  Princeton University 
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