## { Category Archives } Abaqus

### Calculating changes in principal stress directions

We recently had a requirement to determine the change in direction of the principal stress between two load cases. Specifically, we were modeling the grout between a pile and pile sleeve in a removal operation. The sequence of removal was: Remove structure above waterline. This reduces the stress but probably doesn't change the principal stress [...]

### Elastic modulus of grout from compressive strength

A recent project involved the estimation of the elastic modulus of grout from the compressive strength. When performing an analysis on a to-be-built offshore structure with grouted pile-in-sleeves, the compressive and tensile strength, elastic modulus, and Poisson ratio can be looked up on the datasheet or supplied by the grout vendor. But this project involves [...]

### Installing Abaqus CAE on Ubuntu 12.04

$sudo aptitude install csh alien$sudo mkdir /opt/abaqus $sudo /media/Abaqus6111/setup -nosystemchecks # Fix compiz bug$alias abaqus='XLIB_SKIP_ARGB_VISUALS=1 abaqus' # Install some dependencies $sudo apt-get install libjpeg62$sudo aptitude install libstdc++5 The compiz bug fix was found here Update: Although there is always a graphical artifact on my screen, CAE crashes less often than on Windows.

### Parametric Abaqus model generation with CAE

Building parametric models in Abaqus CAE may seem trivial at first blush, simply set CAE to output ids instead of masks and insert a little python code where needed. After spending many hours developing the application, you deploy and all the engineers are happy. Until you upgrade Abaqus to the next release. I have found [...]