I believe that the software done by Angilier for computing the resolved shear stresses , the orientations and magnitudes of paleostresses is the best in this field and more widely spread than others

You can try FSA (Fault & Stress Analysis) software.

http://www.pages-perso-bernard-celerier.univ-montp2.fr/software/dcmt/fsa/fsa.html

To a first approximation of stress tensor and and to separate stresses from heterogeneous fault-slip data, you can use the y-R diagram, with the advantage to be a graphical method based in OpenOffice (free software)

http://dx.doi.org/10.1016/j.cageo.2014.02.008

https://dl.dropboxusercontent.com/u/41688281/yR_toPaper/yRdiagram.zip

Dear Abdullah Diabat

you can use the T-TECTO software for paleo stress analysis i tested and its very good

I don't know if I can obtain the T- TECTO software free and how? I know that it is a good program.....

T-Tecto is provided free of charge for academic, non-profit use.

http://www2.arnes.si/~jzaloh/download_t-tecto.htm

I thank all whom answered and directed me about the software e.g. Pablo Calvin, Haider Al- Ani and Ahmed Al- Maar

Dear Abdullah,

There are several posibilities:

1) WinTensor by Damien Delvaux http://www.damiendelvaux.be/Tensor/tensor-index.html difficult for new user;

2) T-TECTO by Jure Zalohar http://www2.arnes.si/~jzaloh/t-tecto_homepage.htm user friendly;

3) TectonicsFP by Kargl Computer & Consulting http://www.tectonicsfp.com/ used friendly but some function are propietary. Unfortunately.

4) FSA by Bernard Celerier http://www.pages-perso-bernard-celerier.univ-montp2.fr/software/dcmt/fsa/fsa.html not 100% working on Win;

5) FaultKin by Rick Allmendinger http://www.geo.cornell.edu/geology/faculty/RWA/programs/faultkin.html.

With best wishes,

Rasto

Dear Abdullah Diabat

The T - TECTO software free of charge and you can send mail to the provider, ask him about the password and in a few days he will send you the file of registration

Dear Vogtco

I am working since few years on the TENSOR programe of Delvaux, it is good. But I want to get another one like T-TECTO or FaultKin or FSA. I sent a message to some source authors but without answer till now

Look at the website 'geolsoft.com

you can use FaultKin 8 for fault slip analysis programs for Mac and Windows