CraFT

Nouvel article

Herve Moulinec — 2011-09-09T15:36:49Z

Download CraFT

CraFT is freely available under the terms of the Cecill B license agreement (english version of Cecill B licence agreement is available here)

Attention: version 1.0.12g is a beta version. Some features may be changed in a future update.

If you are interested in downloading CraFT, contact us

Users are kindly requested to acknowledge the use of CraFT in published work and to cite one or several CraFT references.

Documentation (version 1.0.12g) is available here:

Download2

Herve Moulinec — 2011-05-09T13:51:58Z

Download CraFT CraFT version 1.0.12b will be soon available for download. - Installation

INSTALL

Herve Moulinec — 2011-04-29T11:44:38Z

CraFT installation

version 1.0.12g
Tuesday October 04 2011

CraFT is written mostly in C (C99) and some features are written in Fortran 90 (in an almost Fortran 77 manner). Its installation has been tested on Linux Debian Squeeze but it should be able to be compiled on any Unix system.

The following text gives some details on how to install it.

Prerequisites:

To compile craft, you need:

FFTW3
You can download it from www.fftw.org or as a package of your gnu/linux distibution (if it is your os and if such a package exists).
[ Remark: CraFT uses fast Fourier transforms. It could be implemented with different FFT packages (previous versions of the algorithm used many other FFT packages) but this version has been implemented with FFTW3 package. If you prefer to use another FFT package, I'm afraid you will have to modify craft_fft_image.c file. ]
Gnu make
a C compiler with C99 features + a Fortran 90 compiler
Typically:
- either gnu compilers: gcc + gfortran
- or Intel compilers : icc + ifort

Downloading CraFT:

You can download CraFT distribution from here:

Put craft-1.0.12g.tgz where you want on your disk and extract the distribution by the following command:

tar xvfz craft-1.0.12g.tgz

Compiling CraFT:

get into craft root directory:

cd ./craft-1.0.12g

If necessary edit and modify what you need in file options.in present in the craft root directory.

In this file, you should just have:

to choose the compilers you want to use, set COMPILERS variable:
- COMPILERS=intel if you want to use icc and ifort
- COMPILERS=gnu if you want to use gcc and gfortran
to choose to use OpenMP parallelization option or not by setting OPENMP variable to yes or no
to choose to get a static or a dynamic executable by setting STATIC_LIBRARIES to yes or no
to set the directories where fftw3 libraries and include files have been installed.

Of course, you can change other things in options.in (typically CFLAGS, FFLAGS variables) but it is not necessary.

options.in has been initially set to compile with gcc anf gfortran compiler without OpenMP options, and to build an executable using dynamic libraries.

Type make in the current directory (the one containing this INSTALL file)

This should build the executables:

bin/craft (CraFT program)

and some tools:

bin/i3dtovtk : converts an image file in "i3d" CraFT image format into simple legacy VTK file format
bin/vtktoi3d : converts an image file in simple legacy VTK file format into "i3d" CraFT image file format
bin/i3stat : displays some infos about images in "i3d" or VTK format
bin/general_i3d : creates a descriptor file for use of a i3d file in 3D scientific visualization program OpenDX
bin/teq : creates an image of equivalent stress or strain + an image of the hydrostatic component from the image files of the 6 components of a stress or strain tensor field

Readme

Herve Moulinec — 2011-04-28T14:21:43Z

The new CraFT website is available and can be accessed at this address: lma-software-craft.cnrs.fr

The new CraFT version (version 1.2) can be downloaded there.

CraFT

version 1.0.12g
December 12 2014

contributors:
Guylaine Boittin, Daniela Garajeu, Alice Labé, Hervé Moulinec, Fabrice Silva, Pierre Suquet

CraFT ("Composite response and Fourier Transforms" or "Crystals and Fourier Transform") is a program to compute the mechanical response of heteregeneous materials.

CraFT is a free software under Cecill-B licence. The text of the licence is available here: http://www.cecill.info/licences/Lic... (english version), http://www.cecill.info/licences/Lic... (french version).

It is based on an original idea by Pierre Suquet (1990) and it has been developed in Moulinec Suquet (1994). The algorithm has been described in Moulinec Suquet (1998) and in Michel, Moulinec, Suquet (2001) where some details are given on the convergence of the iterative algorithm. In Michel, Moulinec, Suquet (2000) an alternative algorithm has been proposed for high contrast materials [not yet implemented in CraFT].

Its development has been partly supported by ANR (Agence Nationale de la Recherche) grant ANR-08-BLAN-0138 for project: "Micromechanical approach of nonlinear ELasto-VIScoplasticity in polycrystalline materials : theory, modeling, and experimental comparison"

CraFT (v 1.0) has been developed by:

Alice Labé
Hervé Moulinec
Pierre Suquet

in the french laboratory "Laboratoire de Mécanique et d'Acoustique", CNRS (Centre National de la Recherche Scientifique) in Marseille France.

Nouvel article

2009-01-29T21:41:42Z

Short bibliography:

P. SUQUET. A simplified method for the prediction of homogeneized elastici properties of composites with a periodic structure. C. R. Acad. Sc. Paris, II, 311, 1990, 769-774.

H. MOULINEC and P. SUQUET. A fast numerical method for computing the linear and nonlinear properties of composites. C. R. Acad. Sc. Paris, II, 318, 1994, 1417-1423.

H. MOULINEC and P. SUQUET. A numerical method for computing the overall response of nonlinear composites with complex microstructure. Comp. Meth. Appl. Mech. Engng., 157 (1998) 69-94.

J.C. MICHEL, H. MOULINEC, P. SUQUET. Effective properties of composite ma- terials with periodic microstructure : a computational approach Comp. Meth. Appl. Mech. Engng., 172 (1999) 109-143

J.C. MICHEL, H. MOULINEC, P. SUQUET. A computational method based on augmented lagrangians and fast Fourier transforms for composites with high contrast, Computer Modeling in Engineering & Science, volume 1, no 2 (2000) 79-88.

J.C. MICHEL, H. MOULINEC, P. SUQUET. A computational scheme for linear and non-linear composites with arbitrary phase contrast, Int. J. Numer. Meth. Engng , 52 (2001) 139-160

Moulinec, H. and Silva, F. (2014), Comparison of three accelerated FFT-based schemes for computing the mechanical response of composite materials. Int. J. Numer. Meth. Engng.. doi: 10.1002/nme.4614

Contacts CraFT

2009-01-29T20:04:46Z

CraFT is developped and maintained by:

Hervé Moulinec
Laboratoire de Mécanique et d'Acoustique
CNRS
31, chemin Joseph Aiguier
13402 Marseille cedex 20
FRANCE

E-mail: moulinec@lma.cnrs-mrs.fr
Tel: (33)/(0) 491 164 232
Fax: (33)/(0) 491 220 875

Screen shot

2009-01-29T09:29:02Z

Screenshots

Elasto-visco-plastic matrix reinforced by elastic short fibers (left). Equivalent strain during traction along x1 axis (right).

Elastic plastic matrix reinforced by elastic fibers. Equivalent strain and stress/strain curve during traction along x axis

: a

: b

: c

Elastic plastic material with 3 populations of spherical voids. a: microstructure. Equivalent strain-rate field for axisymmetric loading (b) and pure shear loading(c).

For more details, see: "Effective flow surface of porous materials with two populations of voids under internal pressure: II. Full-field simulations" Vincent P-G, Suquet P, Monerie Y, Moulinec H, doi:10.1016/j.ijplas.2013.11.012