Computational Mechanics

Contact Information

Christopher J. Freitas, Ph.D., P.E.
Senior Program Manager
Computational Mechanics
(210) 522-2137

image: Hydrocode graph

Hydrocode graph


image: Simulation of penetration of a yawed long rod into a target (hydrocode simulation)

Simulation of penetration of a yawed long rod into a target (hydrocode simulation)


image: Hydrocode graph

Hydrocode graph

Hydrocodes are used to simulate large deformation material response and dynamic processes and to solve the continuum equations for the nonlinear response of materials and structures.

Hydrocodes routinely used are based on methods such as:

  • One-dimensional Lagrangian to fully three-dimensional Lagrangian
  • Eulerian methods to Arbitrary Lagrangian Eulerian (ALE)
  • Smooth particle hydrodynamics (SPH)

Expertise in constitutive modeling, fracture mechanics, algorithms, and parallel computing are employed to enhance problem solving. Southwest Research Institute (SwRI) Engineering Dynamics staff enhance and apply hydrocodes to a broad range of problems such as:

  • Penetration mechanics
  • Fracture mechanics
  • Fluid-structure interaction
  • Armor system design
  • Detonation analysis
  • Blast analysis

A suite of codes for these applications is maintained.

Computational Mechanics Hydrocodes

  • CTH
  • ALE3D
  • CALE
  • DYNA3D
  • EPIC 99
  • HEMP

Computational Mechanics Applications

  • Penetration
  • Detonation/blast
  • Fluid-structure interaction
  • Large deformation response
  • Hydrodynamic ram
  • Armor systems
  • Agent defeat
  • Failure response
  • Impact

Related Terminology

computational mechanics  •  computational  •  tools  •  computational simulation • hydrocodes • engineering codes computational fluid dynamics • CFD • numerical simulation  •  finite volume methods  •  eulerian methods  •  lagrangian methods  •  arbitrary  •  lagrangian/eulerian methods  •  ALE methods  •  fluid flow  •  material response  •  deformation  •  penetration  •  fracture

Benefiting government, industry and the public through innovative science and technology
Southwest Research Institute® (SwRI®), headquartered in San Antonio, Texas, is a multidisciplinary, independent, nonprofit, applied engineering and physical sciences research and development organization with 10 technical divisions.