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shape optimization of a pressure bulkhead

Eigenfrequency optimization of a car rear shelf

Domain decomposition for parallel computing

Welcome to the Carat++ wiki! The purpose of this resource is

• to promote collaboration between Carat++ users.
• to offer a forum for questions, discussions and suggestions about Carat++.
• to provide a basic knowledge base that can be used by both existing and new users
• to demonstrate the capabilities of Carat++ (perhaps after some time).

WHAT IS Carat++?

Carat++ is a finite element program for simulation, structural optimization and form finding. The software is the result of a complete redesign of CARAT, the research code at the Chair of Structural Analysis, Prof. Dr. K.-U. Bletzinger, TU Muenchen.

Three main features are:

Carat++ is platform independent
Carat++ is suitable for large problems (due to massively parallel programming)
Carat++ is modular and thus easy extensible (due to object-oriented programming)

Standard FE Analyses

The kernel of Carat++ is a general finite element solver. Details can be found here. It offers the following analyses:

• Static (linear/nonlinear)
• Dynamic (linear/nonlinear)
  • Explicit: central difference
  • Implicit: Newmark-β, Generalized-α
• Eigenfrequency
• Linear Buckling
• Contact (Work in Progress)

Structural Optimization

Carat++ comprises a general-purpose optimization toolbox. The main application field is FEM-based shape optimization. Detailed information about the optimization toolbox and its features can be found here.

shape optimization of a pressure bulkhead

Eigenfrequency optimization of a car rear shelf

Form Finding

Carat++ can perform numerical form finding as well as cutting pattern generation. Detailed information can be found in a separate chapter here.

Formfinding of a prestressed membrane with an eye cable.