دورية أكاديمية
The 2-layer elasto-visco-plastic rheological model for the material parameter identification of bone tissue extended by a damage law.
| العنوان: | The 2-layer elasto-visco-plastic rheological model for the material parameter identification of bone tissue extended by a damage law. |
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| المؤلفون: | Reisinger AG; Department of Anatomy and Biomechanics, Karl Landsteiner University of Health Sciences, Austria; Institute of Lightweight Design and Structural Biomechanics, Vienna University of Technology, Austria. Electronic address: andreas.reisinger@kl.ac.at., Bittner-Frank M; Department of Anatomy and Biomechanics, Karl Landsteiner University of Health Sciences, Austria; Institute of Lightweight Design and Structural Biomechanics, Vienna University of Technology, Austria., Thurner PJ; Institute of Lightweight Design and Structural Biomechanics, Vienna University of Technology, Austria., Pahr DH; Department of Anatomy and Biomechanics, Karl Landsteiner University of Health Sciences, Austria; Institute of Lightweight Design and Structural Biomechanics, Vienna University of Technology, Austria. |
| المصدر: | Journal of the mechanical behavior of biomedical materials [J Mech Behav Biomed Mater] 2024 Feb; Vol. 150, pp. 106259. Date of Electronic Publication: 2023 Nov 18. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Elsevier Country of Publication: Netherlands NLM ID: 101322406 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1878-0180 (Electronic) Linking ISSN: 18780180 NLM ISO Abbreviation: J Mech Behav Biomed Mater Subsets: MEDLINE |
| أسماء مطبوعة: | Original Publication: Amsterdam : Elsevier |
| مواضيع طبية MeSH: | Bone and Bones* , Cancellous Bone*, Humans ; Stress, Mechanical ; Elasticity ; Rheology ; Biomechanical Phenomena |
| مستخلص: | The response of bone tissue to mechanical load is complex and includes plastic hardening, viscosity and damage. The quantification of these effects plays a mayor role in bone research and in biomechanical clinical trials as to better understand related diseases. In this study, the damage growth in individual wet human trabeculae subjected to cyclic overloading is quantified by inverse rheological modeling. Therefore, an already published rheological material model, that includes linear elasticity, plasticity and viscosity is extended by a damage law. The model is utilized in an optimization process to identify the corresponding material parameters and damage growth in single human trabeculae under tensile load. Results show that the damage model is leading to a better fit of the test data with an average root-mean-square-error (RMSE) of 2.52 MPa compared to the non-damage model with a RMSE of 3.03 MPa. Although this improvement is not significant, the damage model qualitatively better represents the data as it accounts for the visible stiffness reduction along the load history. It returns realistic stiffness values of 11.92 GPa for the instantaneous modulus and 5.73 GPa for the long term modulus of wet trabecular human bone. Further, the growth of damage in the tissue along the load history is substantial, with values above 0.8 close to failure. The relative loss of stiffness per cycle is in good agreement with comparable literature. Inverse rheological modeling proves to be a valuable tool for quantifying complex constitutive behavior from a single mechanical measurement. The evolution of damage in the tissue can be identified continuously over the load history and separated from other effects. Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. (Copyright © 2023 The Authors. Published by Elsevier Ltd.. All rights reserved.) |
| فهرسة مساهمة: | Keywords: 2-layer rheological model; Damage; Material parameter identification; Optimization; Plasticity; Single trabecula; Trabecular bone; Viscosity |
| تواريخ الأحداث: | Date Created: 20231201 Date Completed: 20240109 Latest Revision: 20240109 |
| رمز التحديث: | 20240109 |
| DOI: | 10.1016/j.jmbbm.2023.106259 |
| PMID: | 38039773 |
| قاعدة البيانات: | MEDLINE |
Full Text Finder | تدمد: | 1878-0180 |
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| DOI: | 10.1016/j.jmbbm.2023.106259 |