A Method to Represent Heterogeneous Materials for Rapid Prototyping: The Matryoshka Approach

dc.contributor.author Lei, Shuangyan
dc.contributor.author Frank, Matthew
dc.contributor.author Frank, Matthew
dc.contributor.author Anderson, Donald
dc.contributor.author Brown, Thomas
dc.contributor.department Industrial and Manufacturing Systems Engineering
dc.date 2018-02-18T07:32:24.000
dc.date.accessioned 2020-06-30T04:47:38Z
dc.date.available 2020-06-30T04:47:38Z
dc.date.copyright Wed Jan 01 00:00:00 UTC 2014
dc.date.issued 2014-01-01
dc.description.abstract <p>Purpose—The purpose of this paper is to present a new method for representing heterogeneous materials using nested STL shells, based, in particular, on the density distributions of human bones.</p> <p>Design/methodology/approach—Nested STL shells, called Matryoshka models, are described, based on their namesake Russian nesting dolls. In this approach, polygonal models, such as STL shells, are “stacked” inside one another to represent different material regions. The Matryoshka model addresses the challenge of representing different densities and different types of bone when reverse engineering from medical images. The Matryoshka model is generated via an iterative process of thresholding the Hounsfield Unit (HU) data using computed tomography (CT), thereby delineating regions of progressively increasing bone density. These nested shells can represent regions starting with the medullary (bone marrow) canal, up through and including the outer surface of the bone.</p> <p>Findings—The Matryoshka approach introduced can be used to generate accurate models of heterogeneous materials in an automated fashion, avoiding the challenge of hand-creating an assembly model for input to multi-material additive or subtractive manufacturing.</p> <p>Originality/Value—This paper presents a new method for describing heterogeneous materials: in this case, the density distribution in a human bone. The authors show how the Matryoshka model can be used to plan harvesting locations for creating custom rapid allograft bone implants from donor bone. An implementation of a proposed harvesting method is demonstrated, followed by a case study using subtractive rapid prototyping to harvest a bone implant from a human tibia surrogate.</p>
dc.description.comments <p>This is a manuscript of an article from <em>Rapid Prototyping Journal</em> 20 (2014): 390, <a href="http://dx.doi.org/10.1108/RPJ-10-2012-0095" target="_blank">doi:10.1108/RPJ-10-2012-0095</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/imse_pubs/102/
dc.identifier.articleid 1102
dc.identifier.contextkey 9929337
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath imse_pubs/102
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/44389
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/imse_pubs/102/2014_Frank_MethodRepresent.pdf|||Fri Jan 14 18:15:57 UTC 2022
dc.source.uri 10.1108/RPJ-10-2012-0095
dc.subject.disciplines Industrial Engineering
dc.subject.disciplines Systems Engineering
dc.subject.keywords Rapid prototyping
dc.subject.keywords Rapid manufacturing
dc.subject.keywords Heterogeneous object modeling
dc.subject.keywords Bone implant
dc.title A Method to Represent Heterogeneous Materials for Rapid Prototyping: The Matryoshka Approach
dc.type article
dc.type.genre article
dspace.entity.type Publication
relation.isAuthorOfPublication 37aff1b3-0043-4283-995d-af4300f5ad83
relation.isOrgUnitOfPublication 51d8b1a0-5b93-4ee8-990a-a0e04d3501b1
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