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software of interest to mechanicians

Javascript frontend for simulations?

I've been exploring the possibility of frontend development for engineering simulations in Javascript.  Following on from the previous post on generating VTK XML particle data output files from our simulation, her's a new post on reading in those files in Javascript.  See my article at http://www.parresianz.com/javascript/typescript/vue/vuex/xml/reading-vtk-particles/.

-- Biswajit

Particles and VTK

The find out how data from your particle simulations can be written out in VTK XML format, examine http://www.parresianz.com/c++/xml/vtk/vtk-particle-output/

-- Biswajit

Simpleware Cambridgeshire Workshops, March 2017

We're running a series of free software workshops in the Cambridgeshire, UK area from March 7th to 9th on using Simpleware software for 3D image data visualisation, analysis and model generation.

March 7th: Cranfield

March 8th: Cambridge

Writing VTK output files in C++

If you're interested in visualizing your data with Visit or Paraview, it's convenient to write out VTK files.  If you are a C++ person you will find my post at http://www.parresianz.com/c++/xml/vtk/vtk-output/ of interest.

-- Biswajit

JSON or XML for your input files?

Either, depending on your taste and use-case.  I prefer XML for aesthetic reasons, but that format can get verbose.  Check out my new post on how to read JSON files in your C++ code at http://www.parresianz.com/c++/json/json-input/.

-- Biswajit

Webinar - Tips & Tricks for Simpleware ScanIP, Mar 1-2 2017

Date: Wednesday, March 1, 2017

Time: 9:00 am PST (West Coast) / 12:00 pm EST (East Coast) / 5:00 pm GMT (UK) / 6:00 pm CET (Europe)

Attend this webinar focused on the ScanIP module of the Simpleware software suite. Learn how to improve the image processing and segmentation aspects of your Simpleware workflows.

Reading input files in your C++ research code

Mechanics research codes are typically written by graduate students who aim to get their work done as quickly as possible. These codes are not meant to last beyond the publication of a few related papers. These files have the advantage that they can be read in quickly using an input file stream and the code for doing that can be written in minutes. 

Regression testing with the Command design pattern

Computational mechanics practitioners are not typically known for practising well-established software engineering techniques. That makes code developed by various research groups next to impossible to understand and modify.  I still see requests on iMechanica on how to implement Drucker-Prager models when every freshman student probably has their own implementation.  It is likely that the person who developed a particular code cannot themselves understand the code a few years after the relevant paper has been published.  

Modernizing your old c++ code

Continuing yesterday's thread on new C++ productivity tools, here's another one on using clang-tidy to modernize your code automatically to C++11/14. Life becomes markedly easier after the code has been updated.  Check out my post at http://www.parresianz.com/c++/clang-tidy/ to see how I've integrated clang-tidy into my toolchain.

-- Biswajit

Formatting your C++ code

Some of you may be involved in computational work where your students develop C++ codes.  If the code is formatted well it's easier to read and understand.  With the creation of clang-format, the job of formatting (and not just indentation) can now be automated to a great extent.  For a few pointers on how-to, check out my post at http://www.parresianz.com/c++/clang-format/.

-- Biswajit

Emilio Martínez Pañeda's picture

Abaqus2Matlab: A suitable tool for finite element post-processing

A new piece of software has been presented that connects the well-known FE code Abaqus with Matlab. The source code, detailed documentation and a large number of tutorials can be freely downloaded from www.abaqus2matlab.com 

Some interesting applications are addressed in the associated journal article:

http://www.sciencedirect.com/science/article/pii/S0965997816306512 (a pre-print is available at www.empaneda.com)

Free Simpleware workshop in Chicago - Wednesday February 15th 2017

Date / Time: Wednesday, February 15, 2017 / 9:30 am - 12:30 pm

Location: Chicago, IL, USA

Fee: Free-to-attend. Pre-registration is required as places are limited

Register

Who should attend

Webinar - Scripting: Automating Workflows in Simpleware ScanIP, Feb 8 & 9 2017

Simpleware Webinar

 Date: Wednesday, February 8 & Thursday, February 9, 2017 

Time: Wednesday - 9:00 am PST (West Coast) / 12:00 pm EST (East Coast) / 5:00 pm GMT (UK) / 6:00 pm CET (Europe)
          Thursday -     8:00 am GMT (UK) / 9:00 am CET (Europe) / 1:30 pm IST (India) / 7:00 pm AEDT (East Australia)

Free Lunch & Learn Seminar with Simpleware and SIMULIA, Jan 17th, CA

Date / Time: Tuesday, January 17, 2017 / 10:00 am - 3:00 pm

Venue: Dassault Systemes | 3979 Freedom Circle, Suite 750 | Santa Clara, CA 95054-1249

Fee: The workshop is free, but pre-registration is required as seats are limited.

Language: English

Register here: http://simpleware.com/news-and-events/events/workshops/ll-santa-clara.html

What's the procedure to get the original written data from a figure in published paper?

Choose a channel featured in the header of iMechanica: 

I'm wondering if there is a way to get the original data for some figures in published research papers? I've tried to contact the authors, but no responses come back, could I get this data from the journal where is this paper published?

 

Please give information if you have experienced with this case.

 

how to run a python script after each increment in abaqus.

Choose a channel featured in the header of iMechanica: 

hi,

I am doing static stress analysis. in my problem, I have to update my input file after each increment. so for updating the input file, I have to do some calculation depend on the output of the previous increment result. for these calculations, I have to call the odb file after each increment, do some calculations, update the input file and the process will go on. I have written a python script for the calculations from the odb file but don't know how to use this script after each increment.

 

thank you

Webinar: Biological Modeling for Noninvasive Brain Stimulation, Dec 7th 2016

Presented by Dennis Truong (City College of New York, USA) 

Wednesday, December 7, 2016: 9 AM PST (West Coast) / 12 PM EST (East Coast) / 5 PM GMT (UK) / 6 PM CET (Europe)

Join this webinar to discover how the City College of New York and Soterix Medical Inc. use Simpleware to create robust models for investigating transcranial direct current stimulation.

Webinar: Digital Petrophysics Workflows for Cost Effective Reservoir Analysis - November 30th

Rock physics

Presented by Carlos A. Santos M. (Repsol Technology Center, Spain) 

Wednesday, November 30, 2016: 8 AM EST (East Coast) / 1 PM GMT (UK) / 2 PM CET (Europe) / 6.30 PM IST (India)

Join this webinar to discover how Repsol’s digital petrophysics workflow is producing meaningful inputs for rock typing and reservoir characterisation with the highest value solution available.

How to use non-dimensional form in open source codes instead of Units

I am using an open source FEM platform, which requires you to convert your equation system to non-dimensional form. So, there are no units specified for the parameters in the problem. If you use compatible input units, you should expect the output in matching unit - just like one would do in a normal python or C++ code for solving physical problems. I have an elasto-plastic dynamic problem to solve, and these are the parameters for the Drucker-Prager Soil Model for soft clay.

E = 5000000;                 // Young's Modulus in N/m^2 or Pa

Workshop: Advanced Biomedical Modeling, Oct 20th 2016, Reading, UK

Advanced Biomedical Modeling Workshop

Date: Thursday, October 20, 2016

Venue: Synopsys, 100 Brook Drive, Green Park, Reading, RG2 6UJ

Fee: Free to attend

Oct 26 Webinar: Reducing the Risk of Concussion Through Personalized Helmet Design

Presented by Ross Cotton (Synopsys Simpleware); Bence Gerber and Chris Quan (ANSYS) 

Wednesday, October 26, 2016: 11 AM EDT / 3 PM GMT

Simpleware and ANSYS Head Modelling

Simpleware Workshops in Guildford & Farnborough, Oct 19th and 21st

Simpleware ScanIP

We are running free workshops on using Simpleware for 3D image visualisation, analyis and model generation. Join us in Guildford and Farnborough, UK to learn about getting the most out of our software for 3D image-based modelling.

The workshops are free but pre-registration is required as places are limited.

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