Journal article
Behavior of waves in high density polyethylene geomembranes: a laboratory study
Geotextiles and geomembranes, v 17(2)
1999
Abstract
In this laboratory study, the behavior of waves of the type seen in field deployed high density polyethylene (HDPE) geomembranes was studied. Four experimental variables were evaluated: normal stress, original wave height, thickness of geomembrane and temperature. Twenty-five separate tests were conducted, each for 1000 hours duration. Each of the tests utilized HDPE geomembranes with strain gages attached in a number of critical locations. The results of the 1000-hour strain measurements were modeled and extrapolated to 10,000 hours using the Kelvin-chain model. The measured and extrapolated strains were then converted to stresses via the Maxwell–Weichert model and stress relaxation master curves. With the completion of the experiments and their extrapolation into a near steady state condition, it was found that tensile strains up to 4.9% remained in the geomembranes. The equivalent residual stresses were as high as 22% of the yield stress. Full contacts between the geomembrane and the underlying subgrade soil was not achieved in any of the tests performed.
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14 citations in Scopus
Details
- Title
- Behavior of waves in high density polyethylene geomembranes: a laboratory study
- Creators
- Te-Yang Soong - Drexel UniversityRobert M. Koerner
- Publication Details
- Geotextiles and geomembranes, v 17(2)
- Publisher
- Elsevier
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- [Retired Faculty]
- Scopus ID
- 2-s2.0-0033118858
- Other Identifier
- 991019173689504721