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Accurate prediction
of contact stresses and slip
- Contact
reports with detailed surface stresses and
slip distances at each nodal location.
- Integration
of contact report results with wear equations
- Accurate
analysis for surface gap/contact problems
- Accurate
surface stresses on curved surfaces (unlike
a faceted surface solution)
Reduced Meshing Times
- Mesh
only the surfaces
- Less
elements required on the contact surfaces
- Self-adaptive
contact algorithm for optimal solution
Comprehensive Capabilities
- Analysis
of single and multiple contact surfaces
- Contact
with external rigid surfaces
Interference fits
- Friction
and frictionless contact states
Thermal, rotational, and gravity body forces
- Multiple
contact load sequences can be prescribed
Modelling Features
- Error
and convergence reports provide simple and
clear interpretation of results
- Powerful
use of problem symmetry to reduce computer
time and improve accuracy
- Simple
zoning of problems to improve accuracy, reduce
computer time and define regions of varying
properties
- Definition
of boundary conditions in global and local
co-ordinate systems
- Combined
use of discontinuous and continuous elements
makes mesh refinement and grading in areas
of interest very simple, keeping model size
to a minimum
- Body
loads including point, line sources and forces,
volume sources, rotational and acceleration
loads
Element Library
- Complete
range of elements including both discontinuous
and continuous elements
- Hierarchical
element types allow model refinement without
change of mesh
- For
three dimensional problems, quadrilaterals
and triangles
- For
two dimensional and axisymmetric problems,
lines
- Tube
elements for modelling cylindrical voids in
3D thermal problems
- All
elements have high order shape functions for
accurate model representation
Full User Control
- Free
format input data
- Stop
and restart
Contact Simulation
- Accurate
analysis of surface gap/contact problems
- Analysis
of single and multiple contact surfaces
- General
2D axisymmetric and 3D geometries
- Coupled
stress and thermal analysis
- Contact
with external rigid surfaces
Interference fit
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Comprehensive loading features are available and the user can simply
specify initial gaps or overlaps (interference fit) of the contact
surfaces. The automatic contact algorithm takes care of the rest.
Contact models can also be coupled with
thermal models to include both stress and
thermal effects.
Analysis Features
- Comprehensive
checking of data and of computer resources
required ensures that no analysis runs
are wasted
- Local
error guides to give clear indication
of solution accuracy
- Evaluation
of total force and thermal balance
Combination of thermal and stress analysis to undertake a thermal
stress analysis
- Efficient
and economical solution at as many user-specified “internal
points” as required
- Step-by-step
analysis option allows re-analysis to
be carried out after minor changes without
re-calculation of matrices
Zoning or Substructuring
A model can be split into any number of zones or substructures
to represent different components or materials or to simplify
the model.
Interface
conditions between zones include:-
- Sliding
- Interface
stiffness coefficients
- Prescribed
added traction
- Contact
or gap
- Press
fit
- Contact
thermal resistance (membrane)
- Potential
jump
- Prescribed
added heat flux
- Heat
transfer to external source or sink
Boundary Conditions and Loading
- Point
and line loads
- Traction
- Displacement
- Support
Stiffness
- Thermal
Loading
- Centrifugal
loading
- Acceleration
(including gravity) in any direction
- Temperature
- Heat
flux
- Heat
transfer coefficient
- External
(ambient temperature)
- Point,
line and volume sources of heat flux
Geometry Features
- Implicit
symmetry about any axis
- General
zoning and substructuring
Material Properties
Stress Properties
- Isotropic
for axisymmetric
- Isotropic,
orthotropic and anisotropic
- Linear
material properties
Thermal Properties
- Anisotropic,
orthotropic and isotropic
- Isotropic
for axisymmetric
- Linear
material properties
- Cartesian
or user defined material co-ordinate
system
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