Material Calibration

Case study

High Rate Foam Testing
Foam materials often exhibit high strain rate sensitivity, with large increases in stiffness as materials are loaded at higher rates. Veryst performed high-rate compression tests of a foam material, reaching impact strain rates of over 1500/s.
PEEK Temperature Dependence
PEEK materials are increasingly used in a variety of industries with elevated temperature applications. This example shows how Veryst Engineering developed a temperature-dependent, nonlinear model of PEEK behavior for use in commercial FEA codes.
Shear Jamming in Dense Suspensions
Shear thickening and jamming in dense particulate suspensions can lead to undesirable processing inefficiencies and failure modes across a variety of product applications, including inkjet printer nozzles, medical autoinjectors, and porous filtration systems.  In this case study, Veryst simulated the flow of a dense suspension through a syringe needle to evaluate the conditions that lead to shear jamming.
Strength of Additively Manufactured Parts
Veryst can predict the ultimate strength and failure modes of design concepts generated using topology optimization and produced using additive manufacturing. We use advanced finite element analysis (FEA) that accounts for the nonlinear behavior of the material being used to make the part.
Testing of Climbing Shoe Rubbers
The material properties of a climbing shoe’s outsole rubber directly affect a rock climber’s performance. Veryst performed friction and compression testing of two climbing shoe rubbers to quantify and compare their performance.

Service

Material Model Calibration
Veryst has extensive experience selecting and calibrating a material model to capture the most important aspects of material behavior for your specific material and conditions during use.
Structural Finite Element Analysis
Veryst offers leading expertise in advanced finite element modeling, particularly for complex, nonlinear problems. We can address problems that other finite element analysis consultants either cannot or are not sufficiently experienced to do well.

News item

PolyUMod and compatibility with Abaqus, ANSYS
Veryst announces important updates to our PolyUMod® software—a library of 23 accurate material models that can be used to represent the nonlinear viscoplastic behavior of many different types of materials. 
Publication co-authored with U.S. Food and Drug Administration

Dr. Jorgen Bergstrom has co-authored (in collaboration with Maureen Dreher and Srinidhi Nagaraja of the U.S.

Event

Introducing our new, free, monthly webinar series!
Veryst’s new "In the Test Lab" webinar series focuses on polymer mechanics and experimental testing and features various experimental methods, test systems, and more. The first three webinars are now open for registration.
Presentation at 41st Annual Adhesion Society Meeting
Dr. Mark Oliver spoke about “Applications of Digital Image Correlation in Adhesive Testing: Measuring High-Rate Fracture Toughness and Calibrating Cohesive Zone Models” at the 41st Annual Adhesion Society Meeting.
Presentation at LS-DYNA Users Conference
Dr. Sean Teller spoke about “High Strain Rate Testing and Material Modeling of an Anisotropic Glass Fiber Filled Polyetherimide” at the 15th LS-DYNA International Conference and Users Meeting.
Presentation at Rapid + TCT 2018
Dr. Mark Oliver spoke about “Preventing Failure of Polymeric Additively Manufactured Parts Through Testing and Simulation” at the Rapid + TCT conference.
Two presentations at ANTEC 2018
Dr. Mark Oliver participated in the “Additive Manufacturing: Design, Test, and 3D Print for Production” session at ANTEC 2018, and Dr. Sean Teller participated in the “Engineering Properties and Structure: Innovations in Polyolefins and Plastics” session.

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