When you create a study, click Properties
in the Study dialog box to set
the desired options. To modify the properties of an existing study, right-click
on it in the COSMOS AnalysisManager tree and click Properties.To perform linear static analysis, you need the following:
Meshed model. You must mesh the model before running the analysis. Contact conditions must be defined before meshing. Any change in geometry, contact conditions, or mesh options requires remeshing.
Material properties. You must define the Young’s Modulus EX (also called the Modulus of Elasticity). Poisson’s Ratio (NUXY) is assumed to be zero if not defined. In addition, you need to define the density (DENS) when considering the effect of gravity and/or centrifugal loading and the coefficient of thermal expansion (ALPX) when considering thermal loading. When you select a material from a default material library, these properties are assigned automatically. The default value for the Shear modulus (GXY) is calculated from: GXY = EX/2(1+NUXY).
Compressive, tensile, and yield strength are used by failure criteria to assess failure. They are not used in calculating stresses. For orthotropic materials, you can define different Moduli of Elasticity, Shear Moduli, Poisson Ratios, and/or Coefficients of Thermal Expansion in different directions.
Restraints. Adequate restraints to prevent the body from rigid body motion. If your model is not adequately constrained, check the Use soft springs to stabilize the model option in the Static dialog box. When importing loads from COSMOSMotion, check the Use inertial relief option. These options are available for the Direct Sparse and FFEPlus solvers.
Loads. At least one of the following types of loading:
Concentrated forces
Pressure
Prescribed nonzero displacements
Body forces (gravitational and/or centrifugal)
Thermal (define temperatures or get the temperature profile from thermal analysis)
Imported loads from COSMOSMotion
Imported temperature and pressure from COSMOSFloWorks
When you create a study, click Properties
in the Study dialog box to set
the desired options. To modify the properties of an existing study, right-click
on it in the COSMOS AnalysisManager tree and click Properties.