Validation of Advanced Constitutive Models for Accurate FE Modeling of TPU
Robert Eberlein*,1, Lucian Pasieka2 and Dimosthenis Rizos3
1Institute of Mechanical Systems, Zurich University of Applied Sciences, Winterthur, Switzerland
2,3Eugen Seitz AG, Wetzikon, Switzerland
DOI: 10.5185/amlett.2019.0031
Publication Date (Web): Jun 24, 2019
Copyright © 2019 VBRI Press
Corresponding author: E-mail: ebei@zhaw.ch
Thermoplastic polyurethanes (TPU) have become preferred materials for demanding high strain rate applications in many industries throughout past years. Due to their comparatively high abrasion resistance and toughness, TPU materials form an excellent fit for critical components sustaining high pressures in combination with harsh ambient conditions. This presentation illustrates a comparatively new field of critical applications for TPU components. While the operational pressures remain rather moderate at maximum 50 bar, challenges arise from high-frequency, cyclic loading conditions. In order to design robust dynamic TPU components, two main tasks must be accomplished: (i) visco-elastic-plastic material modeling and parameter identification, and (ii) material validation under realistic dynamic loading conditions on system level by means of advanced finite element (FE) simulations. This article puts (i) emphasis on the material calibration process and (ii) specifically demonstrates material validation on system level for selected TPU materials. In this context strain rate dependency of various TPU grades is discussed, which illustrates deficiencies of classical material modeling techniques available in commercial finite element software versus advanced nonlinear models. Eventually, recommendations are provided for an efficient but also accurate material calibration process of solid TPU materials that can significantly enhance product innovation processes. © VBRI Press.
Cloud Medicine set to Revolutionize Doorstep Personalized Healthcare
Various surfactants for 0 – 3 dimensional nanocarbons: Separation, exfoliation and solubilization
Polypyrrole based biofunctional composite layer for bioelectrocatalytic device system
Innovative Graphene-PDMS sensors for aerospace applications
Effect of hot drawing process and carbonization temperature in electrochemical behavior of electrospun carbon nanofibers
Chemical Reactivity and Electronical Properties of Graphene and Reduced Graphene Oxide on Different Substrates
Laser Raman micro-spectroscopy as an effective non-destructive method of detection and identification of various sp2 carbon modifications in industry and in nature
Electrochemical promotion of ammonia synthesis with proton-conducting solid oxide fuel cells
Biomimetic surfaces with hierarchical structure using microsized texture and nanosized Cu particles for superhydrophobicity
Enhancement the properties of high and low-density polyethylene membranes by radiation grafting process
Synthesis of 9-Aminoacridine and its Application as an Anode Material for Aqueous Rechargeable Lithium–ion Batteries
Facile synthesis of novel tough and highly flexible biodegradable membranes for water microfiltration
Investigating the possibility of using acetic acid in place of HF in chromium-benzenedicarboxylates (MIL-53 and MIL-101) synthesis applicable for CO2 adsorption
Smart Healthcare pulls up Clouds for Virtual Medicine
Selecting the correct electromagnetic inspection technology
Influence of railway-track grinding on the track material condition and tribological behaviour
Micromechanical Fatigue Modelling of the Size Effect in Micro-Scale 316L Stainless Steel Specimens
Functionalization of Graphene and Reduced Graphene Oxide in Different Matrices
Effect of parasitic polytypes on ballistic electron transport in chemical vapor deposition grown 6H-SiC epitaxial layers
Photomemristive heterostructures based on two-dimensional crystals
Architecture - behaviour - properties relationship in Star-shaped MPA-PMMA and MPA-PS hyper-branched copolymers
Graphene and doped graphene: A comparative DFT study
Ag2CO3 / Magnetic reduced graphene oxide nanocomposite as advanced visible light photocatalytic hybrid materials for efficient degradation of azo dye
Optimization of acid hydrolysis process for the preparation cellulose nanofibrils
Alginate/k-carrageenan and alginate/gelatin composite hydrogel beads for controlled drug release of curcumin
Study of microstructure and mechanical properties of friction stir welded ferrite-martensite DP700 steel
Copyright ©2010-2019 VBRI Press
Full Article