Finite element method model of the mechanical behaviour of Jatropha curcas L. bulk seeds under compression loading: Study and 2D modelling of the damage to seeds

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dc.contributor.authorPetrů, Michal
dc.contributor.authorNovák, Ondřej
dc.contributor.authorHerák, David
dc.contributor.authorMašín, Ivan
dc.contributor.authorLepšík, Petr
dc.contributor.authorHrabě, Petr
dc.date.accessioned2015-10-29
dc.date.available2015-10-29
dc.date.issued2014
dc.description.abstractThis article is focused on comprehensive research of a pressing process ofJatropha curcas L. bulk seeds during linear compression. Compression experiments were performed and the strain and brittle fracturing of the seeds visualised. The mechanical behaviour and stress distribution at the volumetric strain of bulk seeds in pressing cylinders and semi-cylinders with diameters of 60, 80 and 100 mm were described by 2D FEM models. It has been determined that the study of nonlinear visco-elastic and plastic strain seed interactions and the damage and crack growth in such seeds can be significantly improved through computer simulations using an explicit FEM algorithm. In this study, the compressibility of ripe J. curcas L. bulk seeds was analysed and compared depending on the volume strain and energy performance of the linear pressing process. Empirical equations and differential deformation theory describing the seeds interacting beyond the oil point were reported. In addition, the issue of contact theory in numerical modelling of the point contact of interacting seeds was also described. Statistical results showed that the 2D FEM model can be used to study the volumetric strain, stress and damage of J. curcas L. bulk seeds. These studies suggest that FEM models may be considered an important tool to assess the energy performance of the pressing process of J. curcas bulk seeds and can provide valuable information for the design and optimisation of pressing equipment. (C) 2014 IAgrE. Published by Elsevier Ltd. All rights reserved.en
dc.description.sponsorshipMinistry of Education, Youth and Sports, Czech Republic [L01201]; "National Programme for Sustainability I"; OPR&DI project Centre for Nanomaterials, Advanced Technologies and Innovation [CZ.1.05/2.1.00/01.0005]; project "Development of Research Teams of R&D Projects at the Technical University of Liberec" [CZ.1.07/2.3.00/30.0024]; CREATex project [CZ.1.07/2.2.00/28.0321]; European Social Fund; Ministry of Education, Youth and Sports, Czech Republic; ESF operational programme "Education for Competitiveness" in the Czech Republic [CZ.1.07/2.3.00/30.0065]
dc.formattext
dc.identifier.doi10.1016/j.biosystemseng.2014.08.011
dc.identifier.issn1537-5110
dc.identifier.scopus2-s2.0-84907235897
dc.identifier.urihttps://dspace.tul.cz/handle/15240/13401
dc.language.isoen
dc.publisherAcademic Press Inc Elsevier Science
dc.publisherTechnická Univerzita v Libercics
dc.publisherTechnical university of Liberec, Czech Republicen
dc.relation.ispartofBiosystems Engineeringen
dc.sourcej-wok
dc.sourced-scopus
dc.subjectLinear compression loadingen
dc.subjectVisualisationen
dc.subjectFEMen
dc.subjectVolumetric strainen
dc.subjectSuperstructureen
dc.subjectBiodieselen
dc.titleFinite element method model of the mechanical behaviour of Jatropha curcas L. bulk seeds under compression loading: Study and 2D modelling of the damage to seedsen
dc.typeArticle
local.citation.epage66
local.citation.spage50
local.facultyFaculty of Textile Engineering
local.fulltextyes
local.identifier.wok344431200005
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