29
IRUS TotalDownloads
Altmetric
A novel essential work of fracture experimental methodology for highly dissipative materials
File | Description | Size | Format | |
---|---|---|---|---|
MANUSCRIPT.docx | Accepted version | 8.72 MB | Microsoft Word | View/Open |
Title: | A novel essential work of fracture experimental methodology for highly dissipative materials |
Authors: | Skamniotis, C Kamaludin, MA Elliott, M Charalambides, M |
Item Type: | Journal Article |
Abstract: | Determining fracture toughness for soft, highly dissipative, solids has been a challenge for several decades. Amongst the limited experimental options for such materials is the essential work of fracture (EWF) method. However, EWF data are known to be strongly influenced by specimen size and test speed. In contrast to time-consuming imaging techniques that have been suggested to address such issues, a simple and reproducible method is proposed. The method accounts for diffuse dissipation in the specimen while ensuring consistent strain rates by scaling both the sample size and testing speed with ligament length. We compare this new method to current practice for two polymers: a starch based food and a polyethylene (PE) tape. Our new method gives a size independent and more conservative fracture toughness. It provides key-data, essential in numerical models of the evolution of structure breakdown in soft solids as seen for example during oral processing of foods. |
Issue Date: | 19-May-2017 |
Date of Acceptance: | 20-Mar-2017 |
URI: | http://hdl.handle.net/10044/1/45740 |
DOI: | 10.1016/j.polymer.2017.03.057 |
ISSN: | 0032-3861 |
Publisher: | Elsevier |
Start Page: | 167 |
End Page: | 182 |
Journal / Book Title: | Polymer |
Volume: | 117 |
Issue: | 1 |
Copyright Statement: | © 2017 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ |
Sponsor/Funder: | Mars Care and Treats |
Funder's Grant Number: | 2003625024 |
Keywords: | Science & Technology Physical Sciences Polymer Science EWF Polymer Strain rate Remote dissipation Crack speed Crack tip blunting PRESSURE-SENSITIVE ADHESIVES STRESS DUCTILE FRACTURE STRAIN ESSENTIAL WORK NONESSENTIAL WORK EWF METHOD TOUGHNESS FILMS POLYMERS THERMOPLASTICS PARAMETERS 03 Chemical Sciences 09 Engineering Polymers |
Publication Status: | Published |
Online Publication Date: | 2017-03-23 |
Appears in Collections: | Mechanical Engineering Faculty of Engineering |