In this post we will see how to model hyperelasticity in a large deformation problem. This case is taken from a publicy available example on the internet, but the original source is probably this one, for all due credit. To read this article one will need some knowledge both in Nastran and in Code_Aster. Large scale deformation of a … Continue reading Nastran to Code_Aster: hyperelasticity

# Translate to Code_Aster

# Nastran to Code_Aster: automatic translation

This is a very short post to describe a tool that can be used for automatic translation between Nastran and Code_Aster: the Vega translator. It is available as a command line program in our Download section, feel free to give it a try! Its usage is quite straightforward, you simply have to unzip the archive, enter in … Continue reading Nastran to Code_Aster: automatic translation

# Nastran to Code_Aster: slideline contact

In this post we will have a look at a slideline contact problem, including friction. This case is taken from a publicy available example on the internet, but the original source is probably this one, for all due credit. To read this article one will need some knowledge both in Nastran and in Code_Aster. The translation between Nastran and … Continue reading Nastran to Code_Aster: slideline contact

# Nastran to Code_Aster: modal frequency response

In this post we will have a look at a modal frequency response analysis. We will find the frequency response of the structure under a pressure load and a nodal force with a phase lag. A modal damping is also applied. This case is taken from a publicy available example on the internet, but the original … Continue reading Nastran to Code_Aster: modal frequency response

# Nastran to Code_Aster : normal modes

In this post we will have a look at a simple linear modal analysis. This case is taken from a publicy available example on the internet, but the original source is probably this one, for all due credit. To read this article one will need some knowledge both in Nastran and in Code_Aster. The translation between Nastran and Code_Aster … Continue reading Nastran to Code_Aster : normal modes

# Nastran to Code_Aster : elasto-plastic deformation

This time we will have a look at nonlinear material properties, in particular elasto-plastic behaviour laws. This case is taken from a publicy available example on the internet, but the original source is probably this one, for all due credit. To read this article one will need some knowledge both in Nastran and in Code_Aster. The translation between Nastran … Continue reading Nastran to Code_Aster : elasto-plastic deformation

# Abaqus to Code_Aster : plane stress

Here is a really simple comparison between Abaqus and Code_Aster syntax. This calculation can be found on this site. The case here is a shell element with a point load in its plane : Expected results from Calculix (a free FEM software compatible with the Abaqus syntax) are : After calculation, here are Code_Aster results : As … Continue reading Abaqus to Code_Aster : plane stress

# Nastran to Code_Aster: nonlinear gap elements

Code_Aster can really replace in many cases traditional solvers, let's try with a simple problem. This problem will look into a specific contact type, called CGAP in Nastran™ and unilateral contact ("LIAISON_UNIL") in Code_Aster. This case is taken from a publicy available example on the internet, but the original source is probably this one, for all due credit. … Continue reading Nastran to Code_Aster: nonlinear gap elements