Determination of changeable in time shear and bulk modulus of apple flesh on the basis of stress relaxation tests
Zbigniew Stropek
Akademia Rolnicza w LublinieKrzysztof Gołacki
Akademia Rolnicza w LublinieAbstract
The paper presents results of stress relaxation tests under uniaxial stress and strain conditions. Tests were carried out on cylindrical samples of Rubin apple flesh. On that basis changeable in time bulk modulus and shear modulus were determined. Application of quasi-static and impact loading enabled to compare apple flesh behaviour at different initial deformation rates.
References
Chen P., Chen S., 1984. Critical strain failure criterion: pros and cons. Transactions of the ASAE 27(1), 278–281. DOI: https://doi.org/10.13031/2013.32776
Chen P., Fridley R.B., 1972. Analytical method of determining viscoelastic constants of agricultural materials. Transactions of the ASAE 15(6), 1103–1106. DOI: https://doi.org/10.13031/2013.38080
DeBaerdemaeker J.G., Segerlind L.J., 1976. Determination of the viscoelastic properties of apple flesh. Transaction of the ASAE 19(2), 346–348, 353. DOI: https://doi.org/10.13031/2013.36025
Gołacki K., Stropek Z., Graboś A., 1999. Test relaksacji naprężeń w materiale biologicznym w warunkach obciążenia dynamicznego – realizacja techniczna. Inż. Roln. 2, 55–61.
Hung Y. C., Prussia S. E., 1989. Effect of maturity and storage time on the bruise susceptibility of peaches (cv. Red Globe). Transactions of the ASAE 32(4), 1377–1382. DOI: https://doi.org/10.13031/2013.31159
Pang W., Studman C. J., Ward G. T., 1992. Bruising damage in apple-to-apple impact. J Agric. Engin. Res. 52, 229–240. DOI: https://doi.org/10.1016/0021-8634(92)80063-X
Stankiewicz A., Gołacki K., 2004. Algorytm identyfikacji zmiennych w czasie modułów odkształcenia postaciowego i objętościowego roślinnych materiałów lepkosprężystych. Acta Sci. Pol., Technica Agraria 3(1–2), 79–95.
Akademia Rolnicza w Lublinie
Akademia Rolnicza w Lublinie
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