A simple constitutive model for cyclic compressive ratchetting deformation of polyteterafluoroethylene (PTFE) with stress rate effects.(Technical ... article from: Polymer Engineering and Science
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Book Details
Author(s)
Zhe Zhang, Xu Chen, Tao Wang
Publisher
Thomson Gale
ISBN / ASIN
B0012YVKBG
ISBN-13
978B0012YVKB5
Marketplace
United Kingdom 🇬🇧
Description
This digital document is an article from Polymer Engineering and Science, published by Thomson Gale on January 1, 2008. The length of the article is 3550 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.
From the author: Pure polyteterafluoroethylene (PTFE) were prepared by using the process of cold pressure and sintering. A series of unaxial cyclic compression tests were carried out on solid cylindrical specimens of pure PTFE. The focus of study was to investigate time-dependent ratchetting behavior of PTFE under cyclic loading. It is shown that the stress-strain hysteresis loops exhibit pronounced nonlinearity with high stress range. The cyclic hardening is rate and stress range dependent. However, mean stresses have less effect on cyclic hardening than stress ranges. It is shown that viscoelasticity is obvious in the beginning cycles. The same stress range produces almost the same viscoelastic delay at the beginning of the compression cycles. A modified universal ratchetting model (URM), which is rate dependent is employed to predict the ratchetting strain under compressive cyclic loading condition at room temperature. POLYM. ENG. SCI., 48:29-36, 2008. [c] 2007 Society of Plastics Engineers
Citation Details
Title: A simple constitutive model for cyclic compressive ratchetting deformation of polyteterafluoroethylene (PTFE) with stress rate effects.(Technical report)
Author: Zhe Zhang
Publication:Polymer Engineering and Science (Magazine/Journal)
Date: January 1, 2008
Publisher: Thomson Gale
Volume: 48 Issue: 1 Page: 29(8)
Article Type: Technical report
Distributed by Thomson Gale
From the author: Pure polyteterafluoroethylene (PTFE) were prepared by using the process of cold pressure and sintering. A series of unaxial cyclic compression tests were carried out on solid cylindrical specimens of pure PTFE. The focus of study was to investigate time-dependent ratchetting behavior of PTFE under cyclic loading. It is shown that the stress-strain hysteresis loops exhibit pronounced nonlinearity with high stress range. The cyclic hardening is rate and stress range dependent. However, mean stresses have less effect on cyclic hardening than stress ranges. It is shown that viscoelasticity is obvious in the beginning cycles. The same stress range produces almost the same viscoelastic delay at the beginning of the compression cycles. A modified universal ratchetting model (URM), which is rate dependent is employed to predict the ratchetting strain under compressive cyclic loading condition at room temperature. POLYM. ENG. SCI., 48:29-36, 2008. [c] 2007 Society of Plastics Engineers
Citation Details
Title: A simple constitutive model for cyclic compressive ratchetting deformation of polyteterafluoroethylene (PTFE) with stress rate effects.(Technical report)
Author: Zhe Zhang
Publication:Polymer Engineering and Science (Magazine/Journal)
Date: January 1, 2008
Publisher: Thomson Gale
Volume: 48 Issue: 1 Page: 29(8)
Article Type: Technical report
Distributed by Thomson Gale
