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
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
