optpack

A collection of Fortran 2003, 90 and 77 routines, modules and programs for automatic simulation based global constrained optimisation. The initial application is for FE simulation of elasto-plastic buckling of steel rods aimed at tuning the hardening model. Unix shell scripts are used extensively. High concurrency is achieved with parallel multi-start global search and with parallel MPI FE. Powell's BOBYQA or LINCOA are used (not included in this package). Automatic mesh generation of 3D cylinders is provided + automatic boundary conditions, all via Fortran and shell scripting.

Features

Fortran
the Abaqus
Unix shell
hierarchical parallelisation
MPI

Project Samples

Circle mesh obtained by conformal mapping of a square

Bucking of 20mm diameter rod in 1st mode

Bucking of 20mm diameter rod in higher mode

Initial mesh for buckling of a short rod with small inital perturbation based on the 1st eigenvector

Deformed mesh for a short rod after buckling. Note high plastic strains near constrains

single starting point optimisation workflow

Project Activity

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License

BSD License

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Additional Project Details

Operating Systems

Linux

Intended Audience

Advanced End Users, Aerospace, Automotive, End Users/Desktop, Engineering, Science/Research

User Interface

Command-line, Console/Terminal

Programming Language

Fortran, Unix Shell

Related Categories

Unix Shell UML Tool, Unix Shell Simulation Software, Unix Shell Mechanical and Civil Engineering Software, Fortran UML Tool, Fortran Simulation Software, Fortran Mechanical and Civil Engineering Software

Registered

2015-12-23

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