Finite Design for Critical Stresses of Compressed Biomaterials under Transportation

Proceedings of the World Congress on Engineering (WCE) 2013, Vol III, July 3 - 5, 2013, London, U.K

6 Pages Posted: 6 Mar 2017 Last revised: 3 Aug 2018

See all articles by Christopher Ihueze

Christopher Ihueze

Nnamdi Azikiwe University

Christian Emeka Okafor

Nnamdi Azikiwe University

Peter Ogbobe

Independent

Date Written: 2013

Abstract

This paper focuses on the evaluation of critical stresses of biomaterials of spherical shape under radial and axial compression employing Hertz contact theory and finite element method. The mechanical properties of UTC tomatoes were determined with a compression test rig for radial and axial compression contacts with metal plate. The maximum contact pressure Pmax was evaluated as 0.063MPa while the maximum shear stress was 0.022MPa. The finite element analysis gave the von mises stresses for axial and radial contacts as 0.001699MPa and 0.012271MPa. The design yield stress was predicted for UTC tomatoes and specified as 0.0012MPa for UTC containers design for transportation. The results of this study will therefore be relevant in the design of transportation for fruits of spherical shape.

Keywords: Contact Stress, Hertzian Stresses, Principal Stresses, Shear Stress, Sphericity

Suggested Citation

Ihueze, Christopher and Okafor, Christian Emeka and Ogbobe, Peter, Finite Design for Critical Stresses of Compressed Biomaterials under Transportation (2013). Proceedings of the World Congress on Engineering (WCE) 2013, Vol III, July 3 - 5, 2013, London, U.K. Available at SSRN: https://ssrn.com/abstract=2927436 or http://dx.doi.org/10.2139/ssrn.2927436

Christopher Ihueze

Nnamdi Azikiwe University ( email )

Enugu-Onitsha Expressway
PMB 5025
Awka, DE Anambra State 234
Nigeria

Christian Emeka Okafor (Contact Author)

Nnamdi Azikiwe University ( email )

PMB 5025
DE Anambra State
Nigeria

Peter Ogbobe

Independent ( email )

No Address Available

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