Beginning with Code Aster and Salome Meca

Code aster is an opensource (free) FEM analysis software targetted to structural, thermal and aucostic analysis. It is available for windows and linux. This software can be used for non-linear analysis and thus is quite useful for engineering studies epscially for academic research. But the sofware is little difficult to use for begineers. I am sharing some introductory videos to get started with this software. You can visit the forum for discussion on your specific problem.

  • Analysis of a simple beam

  • Non-linear analysis of simple steel rod

  • Modeling hardeing of steel

  • Analysis of plate and plotting stress strain diagram

Installing Fortran Compiler for Visual Studio 2017

Fortran has come a long way than we had studied in high-school in 19xx. Its now fully supported within Microsoft visual studio. To install Fortran with VS IDE support, ensure the followings:

Modify/Install the installation file of VS 2017 Community edition (its free!) and install support for Desktop development with C++ .  This step will ensure that the Fortran compiler is available from within the VS2017. (Ref: https://software.intel.com/en-us/articles/installing-microsoft-visual-studio-2017-for-use-with-intel-compilers).

  1. During installation/modification under the Workloads view (shown below), select the checkbox to install the Desktop development with C++ component.
  2. To build applications to run on Windows XP*, check the Windows XP support for C++ component in Summary window
  3. Continue with the installation

Download Fortran compiler- Intel® Parallel Studio XE (its free too!) from https://software.intel.com/en-us/qualify-for-free-software/student. You need to register with academic email address. Install it after downloading.

For offline installation you can download licence file from your profile page after logging in. (Ref: https://software.intel.com/en-us/articles/resend-license-file)

 

  • Click on any active serial number to go to the corresponding Manage License page.
  • There are two icons on the License File header ‘Download license file’ and ‘Resend license file to my email’.

 

interFortranVisualStudio

 

 

Catchment area calculation in QGIS

The method is similar to any other GIS method. The steps are as follows; the main step is highlighted in bold fonts. It is up to you to beautify the map.

  1. Get the DEM files (for eg. from https://earthexplorer.usgs.gov/)
  2. Clip it if necessary. This can reduce the computation time.
  3. Reproject the lat/long DEM file to metric base e.g. UTM (this is essential for any area based analysis).
    Raster>Projection> Wrap
  4. Make sure the projection coordinate used in DEM and your data frame matches.
  5. Fill the projected DEM for any inconsistent data.
    Processing toolbox>SAGA>Terrain analysis(hydrology)>Fill sinks (wang & liu)
  6. Calculate Strahaler order for the filled raster. This is necessary to know the river lines. The intake location should lie exactly on the river line shown by Strahaler .
    Processing toolbox>SAGA>Terrain analysis(channels)>Strahaler order
  7. Delineate the catchment using upslope command. Choose the X,Y coordinate lying on the line calculated by Strahaler .
    Processing toolbox>SAGA>Terraine analysis>Terrain analysis(hydrology)>Upslope area
  8. Using Raster to vector convert the delineated raster to vector.
    Raster>Conversion>Raster to vector
  9. Go to attribute table, add new field with formula “area”. The area is calculated in square meters.

 

Katakana and Hiragana Worksheet

Download Katakana worksheet to practice

PDF format:kanaworksheet

Excel format: kanaworksheet

Changing company name in staad.pro

To change the name of company for which Staad.pro is licensed, use following steps:

  • Open registry by running Regedit
  • expand HKEY_CLASSES_ROOT
  • Scroll down through the displayed lists and expand STAADPro
  • Select 2007 (20.07.10 for STAAD.Pro SS5 or 20.07.11 for STAAD.Pro SS6)
  • Double Click on Username
  • Enter your desired Company name as shown in attached screen capture.