A three-dimensional (3-D) meshfree-based computational model to investigate stress strain-time relationships of plant cells during drying

Rathnayaka, C. M. and Karunasena, H. C. P. and Wijerathne, W. D. C. C. and Senadeera, W. and Gu, Y. T. (2020) A three-dimensional (3-D) meshfree-based computational model to investigate stress strain-time relationships of plant cells during drying. PLoS One, 15 (7):e0235712. pp. 1-28.

[img]
Preview
Text (Published Version)
journal.pone.0235712.pdf
Available under License Creative Commons Attribution 4.0.

Download (5MB) | Preview

Abstract

A better understanding of plant cell micromechanics would enhance the current opinion on “how things are happening” inside a plant cell, enabling more detailed insights into plant physiology as well as processing plant biomaterials. However, with the contemporary laboratory equipment, the experimental investigation of cell micromechanics has been a challenging task due to diminutive spatial and time scales involved. In this investigation, a three-dimensional (3-D) coupled Smoothed Particle Hydrodynamics (SPH) and Coarse-Grained (CG) computational approach has been employed to model micromechanics of single plant cells going through drying or dehydration. This meshfree-based computational model has conclusively demonstrated that it can effectively simulate the behaviour of stress and strain in a plant cell being compressed at different levels of dryness: ranging from a fresh state to an extremely dried state. In addition, different biological and physical circumstances have been approximated through the proposed novel computational framework in the form of different turgor pressures, strain rates, mechanical properties and cell sizes. The proposed computational framework has potential not only to study the micromechanical characteristics of plant cellular structure during drying, but also other equivalent, biological structures and processes with relevant modifications. There are no underlying difficulties in adopting the model to replicate other types of cells and more sophisticated micromechanical phenomena of the cells under different external loading conditions.


Statistics for USQ ePrint 39063
Statistics for this ePrint Item
Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering (1 July 2013 -)
Faculty/School / Institute/Centre: Current - Faculty of Health, Engineering and Sciences - School of Mechanical and Electrical Engineering (1 July 2013 -)
Date Deposited: 16 Jul 2020 00:45
Last Modified: 29 Jul 2020 04:43
Uncontrolled Keywords: stress-strain; mesh free; drying
Fields of Research (2008): 09 Engineering > 0908 Food Sciences > 090802 Food Engineering
Socio-Economic Objectives (2008): E Expanding Knowledge > 97 Expanding Knowledge > 970109 Expanding Knowledge in Engineering
Identification Number or DOI: 10.1371/journal.pone.0235712
URI: http://eprints.usq.edu.au/id/eprint/39063

Actions (login required)

View Item Archive Repository Staff Only