Conference proceeding
Predicting the Creep Behavior of High Density Polyethylene Geogrid Using Stepped Isothermal Method
SERVICE LIFE PREDICTION OF POLYMERIC MATERIALS: GLOBAL PERSPECTIVES, pp 205-218
01 Jan 2009
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
The creep behavior of a high density; polyethylene (I-IDPE) geogrid used for soil reinforcement applications was evaluated using two accelerated creep tests: Tine-Temperature Superposition (TTS) and the Stepped Isothermal method (SIM). TTS has become a well-accepted method to evaluate viscoelastic behavior of polymeric materials, while SIM is a relatively new accelerated creep test that was initially, (developed to evaluate polyethylene-terephthalate (PET) gerogrids. However; the applicability of SIM has not been extensively studied for HDPE geogrids.
In this chapter; variations in the three test parameters of SIM (i.e., temperature increment, dwell time, and applied load) were investigated, As recommended in ASTM D 6992, a temperature increment of 7 degrees C and a dwell time of 10(4) seconds were found to he suitable for the testing of HDPE geogrids. On the other hand, a new analytical procedure was implemented to generate the creep master curve. The creep properties obtained from SIM and TTS were similar at 20 and 30% ultimate tensile strength (UTS). The geogrid exhibited primary creep at 10 (aid 20% of UTS, while secondary creep was defected at 30 and 40% UTS. Furthermore, the activation energies at different applied loads from both accelerated creep methods were determined and their values ranged from 140 to 200 kJ/mol.
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Details
- Title
- Predicting the Creep Behavior of High Density Polyethylene Geogrid Using Stepped Isothermal Method
- Creators
- S. -S. Yeo - Drexel UniversityY. G. Hsuan - Drexel University
- Contributors
- J W Martin (Editor)R A Ryntz (Editor)J Chin (Editor)R A Dickie (Editor)
- Publication Details
- SERVICE LIFE PREDICTION OF POLYMERIC MATERIALS: GLOBAL PERSPECTIVES, pp 205-218
- Publisher
- Springer Nature
- Number of pages
- 14
- Resource Type
- Conference proceeding
- Language
- English
- Academic Unit
- Civil, Architectural, and Environmental Engineering
- Web of Science ID
- WOS:000264098900013
- Scopus ID
- 2-s2.0-84896476917
- Other Identifier
- 991019167669604721
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InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Materials Science, Multidisciplinary
- Polymer Science