Computational Structural Mechanics

Finite element analysis for seamless multiphysics

CSM++ was conceived and developed as a capable structural and thermal FEA software while embodying principles that are foundational to Metacomp – to simplify complexities and truly reimagine computational multiphysics

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OVERVIEW
APPLICATIONS
FEATURES
OVERVIEW
APPLICATIONS
FEATURES
OVERVIEW
APPLICATIONS
FEATURES
OVERVIEW

What is CSM++®?

Multidisciplinary analysis, reimagined

CSM++® introduces a new level of multidisciplinary analysis and design capability to engineers and scientists in various fields of science and technology. CSM++® is a finite element based structural mechanics simulation software suite that has been specifically designed, from the outset, to work seamlessly with CFD++®, CAA++® and MIME® to carry out multiphysics simulations involving fluid flows, acoustics, structural deformations and heat transfer. CSM++® heralds Metacomp’s vision for a flow-structure interaction capability with a high degree of interaction between all the component disciplines.

A capable structural and thermal FEA software

CSM++® can be used to solve static or dynamic structural problems including large deformations and temperature-induced stresses. Segregated input files for CSM++® and CFD++® can be easily set up for FSI using the MetaFSI® interface. CSM++® can import entire finite element models or just a mesh, which can be created by several commercial finite element codes. Alternatively, the entire workflow can be started from scratch with CSM++®, right from geometry creation through visualization of the FEA solution.

Tightly coupled FTSI with CFD++®

CSM++® enables tight coupling of the structural and thermal solvers with the CFD++® flow solvers in modeling fluid-thermal-structure interactions (FTSI). Control and flexibility in tailoring both the fluid and structural solvers and their coupling algorithms (using MetaFSI®) helps address customer needs precisely. And since CSM++® is also based upon our ICMP (Integral Computational Multi-Physics) framework, it offers a tightly coupled FTSI setup process with an easy and consistent user experience across the entire suite of Metacomp software.

APPLICATIONS

Linear statics: Stress contours on the NASA Common Research Model

Linear statics: Displacement contours on SERI-8 composite wind turbine blades

Eigenvalue analysis of the highly flexible Pazy benchmark wing

Thermal analysis of a missile configuration

Standard benchmark cases for nonlinear material models:
hyperelasticity & elastoplasticity

Dynamics of nonlinear flapping wings with prescribed motion

FEATURES

CSM++® is a capable standalone structural and thermal finite element analysis software, suitable for a wide range of applications

Import models & meshes

  • Import full models created by MSC Nastran, Abaqus or Ansys
  • Import meshes created by third-party tools
    • Nastran BDF and OP2 files
    • SDRC I-DEAS Universal file
    • ABAQUS Input and Output files
    • ANSYS Input and Results files
    • 3D Systems STL File
    • LSTC/LS-DYNA Input and State Files
  • Import CFD++® and MIME® grids

Geometry creation tools

  • Create 2-D and 3-D models
  • Sketch simple geometries
    • Point, Line, Triangle, Quadrilateral and Hexagonal patches
    • Work in Cartesian, cylindrical and spherical coordinate systems
    • Easily tile and merge parts

Element types

  • 3-D: Solids, shells, membranes, beams, trusses, rigid body and interface elements
  • 2-D: Solids and shells
  • Point masses and point/bushing springs
  • Linear or parabolic elements with user-specified element integration strategy
  • User-defined custom element formulations

Analysis options

  • Structural (with/without thermal stresses) or purely thermal analysis
  • Static, eigenvalue or transient analyses
  • Geometric nonlinearities handled with a Corotational formulation
  • Material nonlinearities handled with a large strain formulation
  • Frictionless contact
  • Direct or iterative solver
  • Serial or parallel direct solver

Material modeling – I

  • Linear material models
    • Isotropic, orthotropic and anisotropic
  • Nonlinear material models
    • Hyperelastic models – neo-Hookean, Mooney-Rivlin and Ogden
    • Elasto-plasticity – J2 plasticity with hardening law
  • User-defined material models to calculate constitutive law via dynamic/shared library

Material modeling – II

  • Structural properties with thermal effects
    • Anisotropic thermal expansion coefficients
  • Linear thermal material models
    • Isotropic, orthotropic and fully anisotropic conductors
    • Radiation modeling
    • Import SINDA format radiation conductors
  • Temperature dependent material constants

Loads

  • Mechanical loads
    • Forces and moments
    • Pressures and surface tractions
  • Thermal loads
    • Heat
    • Heat flux, convection and radiation
  • Loads on CFD boundaries in FTSI analysis handled by MetaFSI®

Restraints

  • Fixed or applied restraints
  • Multi-Point Constraints (MPCs)
    • Tie surfaces by relating their nodal degrees-of-freedom
    • Impose axial symmetry across surfaces
    • Choice of MPC enforcement – direct, penalty, Lagrange multipliers
    • Autogenerate MPCs for glued contact between faces

Output

  • •CSM++® solution visualizer
    • Displacement, stress and temperature contours
    • Visualize structural deformations and animate mode shapes
  • Spatial and temporal plotting tools
    • Extract solution variables from entire boundaries or specific regions
    • Track solution in ‘real-time’ and conveniently save as data files
    • Real-time flutter prediction using the Matrix Pencil method
  • Export solutions to formats like Tecplot and EnCase

… and several other advanced features to help solve structural problems quickly and efficiently. See the CSM++® Product Overview for additional details

See CSM++ in action

Product Overview
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