ALGORITHM DEVELOPMENT AND PROGRAMMING
AMS -
ALGORITHMS
AMS has formulated two inverse algorithms to determine material curves
from experimental data. The result are material function that
accurately reproduce the experimental tests. A complete description
of these algorithm can be found in
AMS-publications.
Our algorithms are able to determine material functions, such
as plastic stress strain curve or the the softening curve, by means of
an iterative calculation that successively transforms the material
function reducing the differences between the numerical results and
experimental data. The degree of approximation obtained with the AMS algorithm is greater than other equivalent techniques. A
briefly description of the two algorithms:
- AMS inverse algorithm to determine the plastic stress strain curve
of a material. The result is a material curve that accurately
reproducing the experimental test. Our technicians, in
collaboration with universities in the Community of Madrid, have
developed and validated this inverse algorithm that has been
successfully applied to different geometries as: ring tension
test, ring compression test, notched specimens under tension and
nanoidentation.
- AMS inverse algorithm to determine the concrete softening
curve. Fracture in concrete can be explained using the cohesive zone
model which formulation is based on a material curve called softening curve. The
algorithm determines this curve that predicts the real behaviour in
fracture.
PROGRAMMING
Programming and scripting are important auxiliar tasks in numerical
simulations. AMS develops his own scripts and programmes in MATLAB and
PYTHON that permits the automation and optimization of finite element
analysis. We have recently extended these tasks to the following issues:
- AMS algorithm implementation
- ABAQUS – Plug-in
- ANSYS scripts
- OpenMDAO calculation
- Automatic reporting
- Automatic image processing
