LS-TaSC
LS-TaSC is a Topology and Shape Computation tool. Developed for engineering analysts who need to optimize structures, LS-TaSC works with both the implicit and explicit solvers of LS-DYNA. LS-TaSC handles topology optimization of large non-linear problems, involving dynamic loads and contact conditions.
Capabilities
General Capabilities
- Tight integration with LS-DYNA
- Large models with millions of elements
- Manufacturing constraints
- Symmetry
- Extrusion
- Casting
- Forging
- Symmetry
- Global constraints
- Generalized constraints
- Multiple load cases and disciplines
- Multiple design parts
Topology Optimization
Topology optimization of solid designs and Topometry optimization of shell designs
- Element types
- Solids: First-order hexahedrons and tetrahedral elements
- Shells: First-order quadrilateral and triangular elements
- Combination of statics, NVH and impact
- Homogenization of internal energy density
- Maximization of fundamental frequency
- Postprocessing
- Iso-surfaces
- Methodologies
- Optimality Criteria
- Projected Subgradient method
- Multi-point method for constrained optimization
Free Surface Design
The surface of a solid part can be redesigned to reduce stress concentrations.
- Objective: Uniform surface stress
- Parameters: Position of each node in the design surface
- Geometry definitions
- Edge smoothing