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Multi-scale Multiphysics Analysis on Responses of Structures

Many of the unique capabilities available in the MARS software requires an understanding of the specific MARS mathematical algorithms used. This knowledge is crucial for developing valid analytical models and obtaining good numerical simulations.​ New users may need help to use MARS effectively. Wansus is available to assist your analysts in developing valid and efficient models with MARS for those problems of interest to you. For more information, please contact us at


MARS is a special purpose computational software for simulating the mechanical response of structures under various loading conditions. It is based on dynamic explicit algorithms and it includes all the capabilities and versatility of a general finite element code. MARS features some unique techniques, such as the Lattice Discrete Particle Method (LDPM) and adaptive re-meshing algorithms for shell and solid meshes, which facilitate the solution of problems involving structural break-ups, fragmentation, and post-failure response under extreme loading conditions. MARS, thanks to its object-oriented architecture, makes it possible to add new capabilities in an efficient and systematic fashion. All entities in MARS are organized in a hierarchical framework.

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Lattice Discrete Particle Model

State of the Art Virtual Concrete Testing with Aging Effects

LDPM is a novel analytical approach for modeling the response of heterogeneous and granular materials, such as composite laminates, ceramics, concrete, gravels, and soils. The premise of the LDPM formulation is that most materials are not homogenous when considered at a sufficiently small dimensional scale (micro- and meso-scale). This heterogeneous character has a paramount relevance for the description of strain localization, crack initiation, and crack propagation, which, in turn, strongly influence the ultimate failure mode of a structural system. Continuum-based models, which homogenize material behavior, are inherently incapable of capturing the mesoscale interactions and as such become complex and inadequate in the failure range.

Multiphysics Computation

  • Temperature

  • Humidity

  • Maturity

  • Aging


Compression Test

  • Uniaxial unconfined compression 

  • Hydrostatic compression 

  • Triaxial compression

  • Cyclic compression

  • Compression/torsion


Tensile Test

  • Dogbone direct tension

  • Brazillian splitting

  • Wedge splitting

  • Size effect

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Bending Test

  • Three-point bending

  • Four-point bending

  • Notched/unnotched

  • Size effect


Shear Test

  • Structural scale testing

  • Reinforcement and prestressing

  • Creep and shrinkage

  • Prestress loss

  • Decades prediction

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Anchor Test

  • Single pullout

  • Group pullout

  • Anchor/concrete failure

  • Cone failure 


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