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Articles

NON LINEAR VISCOELASTIC BEHAVIOR OF SPHERICAL FRUITS

Article number
562_21
Pages
187 – 194
Language
English
Abstract
This work presents a study of contact stress phenomena in spherical fruits which generates non-linear relations for force and deformation.
The material viscoelastic behavior is then associated with the non-linear relations due to the geometry of the body, generating a non linear viscoelastic problem.
Such a non-linearity is called geometric non linearity.
Elastic-Viscoelastic correspondence principle can not support the present case due the changes in boundary conditions.
A technique was developed to measure the contact area and by means of the Hertz Contact Stress Theory, a function gamma(t)was defined, which is strongly influenced by force and deformation rates.

Publication
III International Symposium on Sensors in Horticulture
Authors
A.W. Linares, I.M. Dal Fabbro
Keywords
Contact Stress, non linear viscoelasticity
Full text
https://doi.org/10.17660/ActaHortic.2001.562.21
Online Articles (50)
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