Cubical triaxial tester specimen size effect on mechanical behavior of powders

Hojae Yi, Anuranjan Pandeya, Virendra Puri

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

A cubical triaxial tester (CTT) was developed and has been used successfully for determining fundamental mechanical properties of powder materials by the Pennsylvania State University's Powder Mechanics group. The CTT uses a cubical test specimen with the dimension of 50.8 × 50.8 × 50.8 mm to allow the measurement of large deformation. An adapter for the CTT to use a smaller cubical sample with the dimension of 31.8 × 31.8 × 31.8 mm was developed to accommodate needs for the smaller sample volume. To examine the ability of mechanical properties determination with the new small sample, a set of hydrostatic triaxial compression tests and conventional triaxial compression tests were performed. Most elastic and elastoplastic properties are not significantly different (P > 0.05) while plastic parameters measured using large and small size samples had lower P values. Failure stress differences of large and small size sample showed even lower P values. Only failure stress differences with 5 kPa of confining pressure showed significant difference (P < 0.05) between large vs. small test sample.

Original languageEnglish (US)
Title of host publicationAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2008, ASABE 2008
PublisherAmerican Society of Agricultural and Biological Engineers
Pages1460-1469
Number of pages10
ISBN (Print)9781605605364
StatePublished - Jan 1 2008
EventAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2008 - Providence, RI, United States
Duration: Jun 29 2008Jul 2 2008

Publication series

NameAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2008, ASABE 2008
Volume3

Other

OtherAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2008
Country/TerritoryUnited States
CityProvidence, RI
Period6/29/087/2/08

All Science Journal Classification (ASJC) codes

  • Agricultural and Biological Sciences(all)

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