Customized Computational Solutions

With so many of our clients at the forefront of their fields, often engaged in developing cutting-edge products, we understand that out-of-the-box approaches to analyzing product or material performance don't adequately capture all the needed information.  To address this issue, Veryst provides clients with customized computational solutions to model problems for which simulation tools are not currently available.  These solutions include:

  • developing simulation applications ("apps") that are highly customizable based on each client's needs;
  • developing and calibrating customized material subroutines for specific polymers, so that clients can use these models in their finite element simulations;
  • regularly adding new customized material models to the PolyUMod® user-material model library, developed by Veryst and now available through PolymerFEM.com;
  • developing custom optimization algorithms;
  • programming custom software in Python and Java;
  • developing system-level models of clients' products or processes;
  • implementing new features in commercial finite element programs.  This can be in the form of user material models (UMATs and VUMATs in Abaqus, UserMat Subroutines in ANSYS, and User Defined Materials in LS-DYNA) or ordinary or partial differential equations in COMSOL Multiphysics.
Simscape GUI
Simscape model to simulate a water heating system and proportional-integral-derivative (PID) control loops


In one example, Veryst developed a constitutive model of a medium density polyethylene (MDPE) in COMSOL Multiphysics.  MDPE is a thermoplastic commonly used in gas piping and fittings where performance is critical, yet it cannot be modeled accurately with either hyperelastic or elastic-plastic material models.  See how Veryst successfully developed a customized code in COMSOL for a more accurate material model that captures the complex behavior of MDPE.

Application Image with Code
Custom app developed by Veryst for simulation of a novel microfluidic pumping mechanism – insert shows part of Java code used to generate the app

 

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RF Tissue Ablation Simulation

Radio frequency tissue ablation is a commonly used and minimally invasive tissue treatment procedure. Accurately modeling this kind of coupled multiphysics problem is often challenging. Veryst developed a COMSOL Multiphysics model accounting for heat transfer, electric field, and fluid flow to study the RF tissue ablation problem where an electrode is targeting a tissue close to a blood vessel.

Wear in Automotive Disk Brakes

When would an automotive disc brake need to be replaced? The continuous frictional sliding between two deformable surfaces leads to wear accumulation and ultimately failure of the weakest component. However, wear modeling is not readily available in most finite element codes. Veryst developed a wear model in COMSOL Multiphysics using differential equations for the wear depth based on a modified version of Archard's law.

Design of Reinforced Hoses

A high-strength reinforced hose failed in service under normal operating conditions well before its intended design life. Inspections of the subject hose revealed that failure was mainly due to delamination.

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