Design for limit stresses of orange fruits (Citrus sinensis) under axial and radial compression as related to transportation and storage design
| Autor: | Chika Edith Mgbemena, Christopher Chukwutoo Ihueze |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Orange (colour) Elastic constants 0404 agricultural biotechnology Shear stress von Mises yield criterion Composite material lcsh:Agriculture (General) Elastic modulus von Mises stress business.industry 04 agricultural and veterinary sciences Structural engineering 040401 food science lcsh:S1-972 Finite element method Hertzian stresses Sphericity Contact mechanics 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Principal stresses General Agricultural and Biological Sciences business Contact area Citrus × sinensis |
| Zdroj: | Journal of the Saudi Society of Agricultural Sciences, Vol 16, Iss 1, Pp 72-81 (2017) |
| Popis: | This article employed the Hertz contact stress theory and the finite element method to evaluate the maximum contact pressure and the limit stresses of orange fruit under transportation and storage. The elastic properties of orange fruits subjected to axial and axial contact were measured such that elastic limit force, elastic modulus, Poisson’s ratio and bioyield stress were obtained as 18 N, 0.691 MPa, 0.367, 0.009 MPa for axial compression and for radial loading were 15.69 N, 0.645 MPa, 0.123, 0.010 MPa. The Hertz maximum contact pressure was estimated for axial and radial contacts as 0.036 MPa. The estimated limiting yield stress estimated as von Mises stresses for the induced surface stresses of the orange topologies varied from 0.005 MPa–0.03 MPa. Based on the distortion energy theory (DET) the yield strength of orange fruit is recommended as 0.03 MPa while based on the maximum shear stress theory (MSST) is 0.01 MPa for the design of orange transportation and storage system. |
| Databáze: | OpenAIRE |
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