Input for Linear Static Analysis
To perform linear static analysis, you need the following:
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).
NOTE:
The above description applies for isotropic materials. For orthotropic
materials, you can define different Moduli of Elasticity, Shear Moduli,
Poisson Ratios, and/or Coefficients of Thermal Expansion in different
directions.
Compressive, tensile, and yield strength are used by failure criteria
to assess failure. They are not used in calculating stresses.
Fixtures.
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 SolidWorks Motion, make sure that
Use inertial relief option is
checked. 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
Imported temperature and pressure from
To modify the properties of an existing study,
right-click on its icon in the Simulation study tree and select Properties.