Typical test matrix specifying 215 tests required for characterizing reinforced plastic materialTypical test matrix specifying 215 tests required for characterizing reinforced plastic material

Automobile and truck manufacturers and companies in other industries are increasingly taking advantage of fiber reinforced plastics because of their ability to reduce weight, improve fuel economy, lower emissions, increase design freedom and provide other advantages while offering equal or better mechanical properties. Designing new components that take advantage of these exciting new materials often requires predicting their composite response for multiple mass fractions and fiber orientations. But for each reinforced plastics material that is being considered, over 200 tests might easily be required to characterize composite response such as static, crash, fatigue, creep, NVH, thermomechanical, etc. at different fiber orientations including replicates. This Lunch & Learn will explain how our advanced material modeling platform can stretch your test budget by accurately characterizing composite response of reinforced plastic materials based on a small fraction of the number of tests required by conventional methods.

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Rani Harb

Lunch & Learn presenter
e-Xstream engineering
FEA Project Engineer

Rani Harb, FEA Project Engineer at e-Xstream engineering will present an integrated workflow that leverages Digimat-MF and Digimat-FE to predict the complete composite response of a Celanese Celstran® PP-GF40 long strand glass fiber reinforced polypropylene material based on just a handful of physical tests that were performed on another material with the same resin. The basic process is as follows:

  • Use Digimat-MF to quickly reverse engineer the resin properties from the experimental data
  • Use Digimat-FE to build a micro scale finite element model to evaluate different fiber orientations
  • Change the mass fraction and run finite element model again
  • Create a Digimat-MF model and calibrate the composite properties based on the results from the preceding step

Click here for a more detailed explanation of DIgimat-MF and Digimat-FE

About the Presenter
Rani Harb has a Master of Science in Mechanical Engineering from the Georgia Institute of Technology and Doctor of Philosophy in Mechanical Engineering from the University of California Los Angeles. He worked for three years as a Modeling & Simulation Engineer for the Goodyear Tire & Rubber Company and joined e-Xstream engineering in 2017.