Electronic Journal of Polish Agricultural Universities (EJPAU) founded by all Polish Agriculture Universities presents original papers and review articles relevant to all aspects of agricultural sciences. It is target for persons working both in science and industry,regulatory agencies or teaching in agricultural sector. Covered by IFIS Publishing (Food Science and Technology Abstracts), ELSEVIER Science - Food Science and Technology Program, CAS USA (Chemical Abstracts), CABI Publishing UK and ALPSP (Association of Learned and Professional Society Publisher - full membership). Presented in the Master List of Thomson ISI.

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Zdunek A. , Konstankiewicz K. , Gancarz M. 2001. FAILURE AND ACOUSTIC EMISSION OF POTATO TUBER TISSUE OF SELECTED VARIETIES IN COMPRESSION TESTS AT VARIOUS STRAIN RATES, EJPAU 4/issue2/volume4(2), #07.
Available Online: http://www.ejpau.media.pl/volume4/issue2/volume4/issue2/engineering/abs-07.html

ABSTRACT

Results of compression tests of various strain rates with measurements of the total counts sum of the acoustic emission for the samples of six selected potato varieties with various appropriations have been presented. It was shown that an increase in the strain rate cause a decrease in failure strain and an exponential increase in the total counts sum. No influence of the strain rate on the failure stress was observed. It was found that the total counts sums were higher in the case of edible medium-late varieties as compared to the medium-early starch varieties within the range of the strain rates studied. No such relation was found for the failure stress and failure strain.

Key words: potato, failure, cracking, acoustic emission.

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