Orientation of orthotropic material properties in a femur FE model: A method based on the principal stresses directions
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| Title: | Orientation of orthotropic material properties in a femur FE model: A method based on the principal stresses directions |
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| Authors: | San Antonio, T.1,2 tsantoni@uc.edu.ve, Ciaccia, M.1,2, Müller-Karger, C.1, Casanova, E.1 |
| Source: | Medical Engineering & Physics. Sep2012, Vol. 34 Issue 7, p914-919. 6p. |
| Subjects: | Orthotropic plates, Femur, Finite element method, Mathematical models, Physiological stress, Biomechanics |
| Abstract: | Abstract: Most work done on bone simulation has modeled the tissue as inhomogeneous and isotropic even though it is a recognized anisotropic material. Some recent investigations have included orthotropic behavior in bone finite elements (FE) models; however the problem regarding the orientation of these properties along the irregular bone anatomy remains. In this work, a procedure to orientate orthotropic properties in a proximal femur FE model using the directions of the principal stresses produced by a physiological load scheme was developed. Two heterogeneous material models, one isotropic and one orthotropic, were employed to test their influence on the mechanical behavior of the bone model. In the developed orthotropic material, the mechanical properties are aligned with the highest principal stress produced from the successive application of a multi load scenario corresponding to 10%, 30% and 45% of the gait cycle. A solid match between anatomical structures in the proximal femur and the corresponding directions of the main principal stress of the elements of the model suggests that the developed methodology works accurately. The differences found in the stress distributions were small (maximum 7.6%); nevertheless the changes in the strain distributions were important (maximum 27%) and located in areas of clinical relevance. [Copyright &y& Elsevier] |
| Copyright of Medical Engineering & Physics is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 78282549 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Orientation of orthotropic material properties in a femur FE model: A method based on the principal stresses directions – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22San+Antonio%2C+T%2E%22">San Antonio, T.</searchLink><relatesTo>1,2</relatesTo><i> tsantoni@uc.edu.ve</i><br /><searchLink fieldCode="AR" term="%22Ciaccia%2C+M%2E%22">Ciaccia, M.</searchLink><relatesTo>1,2</relatesTo><br /><searchLink fieldCode="AR" term="%22Müller-Karger%2C+C%2E%22">Müller-Karger, C.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Casanova%2C+E%2E%22">Casanova, E.</searchLink><relatesTo>1</relatesTo> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Medical+Engineering+%26+Physics%22">Medical Engineering & Physics</searchLink>. Sep2012, Vol. 34 Issue 7, p914-919. 6p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Orthotropic+plates%22">Orthotropic plates</searchLink><br /><searchLink fieldCode="DE" term="%22Femur%22">Femur</searchLink><br /><searchLink fieldCode="DE" term="%22Finite+element+method%22">Finite element method</searchLink><br /><searchLink fieldCode="DE" term="%22Mathematical+models%22">Mathematical models</searchLink><br /><searchLink fieldCode="DE" term="%22Physiological+stress%22">Physiological stress</searchLink><br /><searchLink fieldCode="DE" term="%22Biomechanics%22">Biomechanics</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract: Most work done on bone simulation has modeled the tissue as inhomogeneous and isotropic even though it is a recognized anisotropic material. Some recent investigations have included orthotropic behavior in bone finite elements (FE) models; however the problem regarding the orientation of these properties along the irregular bone anatomy remains. In this work, a procedure to orientate orthotropic properties in a proximal femur FE model using the directions of the principal stresses produced by a physiological load scheme was developed. Two heterogeneous material models, one isotropic and one orthotropic, were employed to test their influence on the mechanical behavior of the bone model. In the developed orthotropic material, the mechanical properties are aligned with the highest principal stress produced from the successive application of a multi load scenario corresponding to 10%, 30% and 45% of the gait cycle. A solid match between anatomical structures in the proximal femur and the corresponding directions of the main principal stress of the elements of the model suggests that the developed methodology works accurately. The differences found in the stress distributions were small (maximum 7.6%); nevertheless the changes in the strain distributions were important (maximum 27%) and located in areas of clinical relevance. [Copyright &y& Elsevier] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Medical Engineering & Physics is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.medengphy.2011.10.008 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 6 StartPage: 914 Subjects: – SubjectFull: Orthotropic plates Type: general – SubjectFull: Femur Type: general – SubjectFull: Finite element method Type: general – SubjectFull: Mathematical models Type: general – SubjectFull: Physiological stress Type: general – SubjectFull: Biomechanics Type: general Titles: – TitleFull: Orientation of orthotropic material properties in a femur FE model: A method based on the principal stresses directions Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: San Antonio, T. – PersonEntity: Name: NameFull: Ciaccia, M. – PersonEntity: Name: NameFull: Müller-Karger, C. – PersonEntity: Name: NameFull: Casanova, E. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 09 Text: Sep2012 Type: published Y: 2012 Identifiers: – Type: issn-print Value: 13504533 Numbering: – Type: volume Value: 34 – Type: issue Value: 7 Titles: – TitleFull: Medical Engineering & Physics Type: main |
| ResultId | 1 |
