Effects of temperature and strain rate on the tensile behavior of unfilled and talc-filled polypropylene. Part II: constitutive equation.(Abstract): An article from: Polymer Engineering and Science
Book Details
Author(s)Yuanxin Zhou, P.K. Mallick
PublisherSociety of Plastics Engineers, Inc.
ISBN / ASINB0008G15PU
ISBN-13978B0008G15P0
MarketplaceFrance 🇫🇷
Description
This digital document is an article from Polymer Engineering and Science, published by Society of Plastics Engineers, Inc. on December 1, 2002. The length of the article is 3232 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: Based on the experimental results presented in Part I of this research, a three-parameter nonlinear constitutive model has been proposed to describe the strain rate and temperature dependent tensile behaviors of unfilled and talc-filled polypropylene. One of the parameters is the elastic modulus. The other two parameters in this model are a strain exponent, m, and a compliance factor, [beta]. Their relationships to strain rate and temperature are obtained from the experimental results. The simulated stress-strain curves from the model are in good agreement with the test data. The analysis of the model shows that the strain exponent in, which controls the strain softening (or hardening) effect of the material, is not only strain rate independent, but also temperature independent. The compliance parameter, [beta], which controls the flow stress level of the material, on the other hand, varies with both strain rate as well as temperature. Results also show that the addition of talc filler in polypropylene reduce s the strain exponent m, and increase the compliance parameter, [beta], which reduces the flow stress level of talc-filled polypropylene to lower than that of unfilled polypropylene.
Citation Details
Title: Effects of temperature and strain rate on the tensile behavior of unfilled and talc-filled polypropylene. Part II: constitutive equation.(Abstract)
Author: Yuanxin Zhou
Publication:Polymer Engineering and Science (Refereed)
Date: December 1, 2002
Publisher: Society of Plastics Engineers, Inc.
Volume: 42 Issue: 12 Page: 2461(10)
Article Type: Abstract
Distributed by Thomson Gale
From the author: Based on the experimental results presented in Part I of this research, a three-parameter nonlinear constitutive model has been proposed to describe the strain rate and temperature dependent tensile behaviors of unfilled and talc-filled polypropylene. One of the parameters is the elastic modulus. The other two parameters in this model are a strain exponent, m, and a compliance factor, [beta]. Their relationships to strain rate and temperature are obtained from the experimental results. The simulated stress-strain curves from the model are in good agreement with the test data. The analysis of the model shows that the strain exponent in, which controls the strain softening (or hardening) effect of the material, is not only strain rate independent, but also temperature independent. The compliance parameter, [beta], which controls the flow stress level of the material, on the other hand, varies with both strain rate as well as temperature. Results also show that the addition of talc filler in polypropylene reduce s the strain exponent m, and increase the compliance parameter, [beta], which reduces the flow stress level of talc-filled polypropylene to lower than that of unfilled polypropylene.
Citation Details
Title: Effects of temperature and strain rate on the tensile behavior of unfilled and talc-filled polypropylene. Part II: constitutive equation.(Abstract)
Author: Yuanxin Zhou
Publication:Polymer Engineering and Science (Refereed)
Date: December 1, 2002
Publisher: Society of Plastics Engineers, Inc.
Volume: 42 Issue: 12 Page: 2461(10)
Article Type: Abstract
Distributed by Thomson Gale
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