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6th April 2018, West Jordan, UT

Update for VABS simulation software

AnalySwift, a provider of efficient high-fidelity modelling software for composites and other advanced materials based in West Jordan, Utah, is introducing a versatile new preprocessor called PreVABS for users of its VABS composite blade simulation software.

The VABS software is an engineering code for rigorous simulation of composite structures, especially helicopter and wind turbine rotor blades, and the new PreVABS greatly improves the user experience.

PreVABS helps engineers in the early stages of simulation of composite slender structures. © AnalySwift

Students in the Multiscale Structural Mechanics (MSM) group at Purdue University developed the new PreVABS under the direction of Dr Wenbin Yu, professor in the School of Aeronautics and Astronautics.

PreVABS helps engineers in the early stages of simulation of composite slender structures, commonly called composite beams. It is designed to reduce the workload of preparing input files for VABS and to make the process automatic for design and optimisation purposes.

“Cross sections with general and aerofoil shapes can be created,” said Wenbin Yu, professor at Purdue University. “This replaces an earlier programme, also called PreVABS, which has been discontinued and is no longer available. PreVABS is a completely new code, which has many improved capabilities. Unlike the previous program, PreVABS is now free and open source.”

PreVABS is available for free download through the Composites Design & Manufacturing HUB, hosted by Purdue University. © AnalySwift

Some of the features of PreVABS include:

  • The  capability to create nose mass in an aerofoil-type cross section.
  • A post-processing function for visualising the recovered strains and stresses in Gmsh (a free 3D finite element mesh generator with built-in CAD pre and post-processing facilities).
  • The capability to read stacking sequence code.
  • Design-oriented parametric input files to draw the cross section naturally.
  • An isolated material database file to enable reusability.
  • Global transformation capability to release the burden of calculating geometries by hand.

PreVABS is available for free download through the Composites Design & Manufacturing HUB (cdmHUB.org), hosted by Purdue University.

www.analyswift.com

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