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.
2001
Volume 4
Issue 2
Volume 4
Issue 2
Topic:
Agricultural Engineering
ELECTRONIC
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Copyright © Wydawnictwo Uniwersytetu Przyrodniczego we Wrocławiu, ISSN 1505-0297
Gołacki K. , Stropek Z. 2001. VISCOELASTIC PROPERTIES OF JONAGOLD APPLE FLESH, EJPAU 4(2), #02.
Available Online: http://www.ejpau.media.pl/volume4/issue2/engineering/abs-02.html
Available Online: http://www.ejpau.media.pl/volume4/issue2/engineering/abs-02.html
VISCOELASTIC PROPERTIES OF JONAGOLD APPLE FLESH
Krzysztof Gołacki, Zbigniew Stropek
ABSTRACT
Linear viscoelasticity of the studied material was assumed in the range of strain up to 0.08 mm/mm. A general Maxwell model was suggested to describe the reaction of apple sample to loading. In stress relaxation experiment two kinds of samples that had been cut from the same fruit were axially compressed. One specimen was free to expand in radial direction, while the other one was constrained in a rigid container.
Key words: relaxation test, Poisson’s ratio, bulk modulus, shear modulus, energy.