Experimental study on the dynamic stress-strain behavior of expanded polystyrene geofoam using cyclic triaxial tests

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Title Experimental study on the dynamic stress-strain behavior of expanded polystyrene geofoam using cyclic triaxial tests
Publication Type thesis
School or College College of Mines & Earth Sciences
Department Geology & Geophysics
Author Erickson, Benjamin A.
Date 2011-11
Description Dynamic testing of expanded polystyrene (EPS) results in behavior alterations when certain testing criteria are modified. Triaxial testing affirms the behavior of EPS geofoam under axial compression tests related to a seismic compressible inclusion application. An evaluation of initial static deviator stress, load frequency of deviator stress amplitudes, and the effect of static confining stress of EPS geofoam dynamic response are performed. The behavior of viscoelastic and visco-elasto-plastic are compared through the use of cyclic compression tests. Comparative measurements used in supporting behavior change were: Young's modulus, damping ratio, cyclic deviator stress, and plastic axial strains. The resulting data is interpreted through data charts and data trends. Comparative conclusions show significant behavior changes to EPS geofoam when frequency and confining stress influential effects are observed.
Type Text
Publisher University of Utah
Subject Cyclic triaxial tests; EPS; Geofoam; Stress-strain; Expanded polystyrene geofoam; Axial compression
Dissertation Institution University of Utah
Dissertation Name Master of Science in Geological Engineering
Language eng
Rights Management Copyright © Benjamin A. Erickson 2011
Format application/pdf
Format Medium application/pdf
Format Extent 2,108,297 bytes
Identifier us-etd3,78202
Source Original housed in Marriott Library Special Collections, TA7.5 2011 .E75
ARK ark:/87278/s6k93p9b
Setname ir_etd
ID 194723
Reference URL https://collections.lib.utah.edu/ark:/87278/s6k93p9b