Nondestructive Evaluation of Mechanical Properties of Femur Bone

Gautam, Diplesh; Rao, Venkatesh K. P.

doi:10.1007/s10921-021-00754-0

Cited by 15 publications

(10 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[14] Moreover, the results showed that reducing the size of the unit cell of the scaffold maintains the constant porosity, slightly changes the mechanical strength, and significantly increases the surface-to-volume ratio. Before comparing these geometries, the following factors should be taken into account for the trabecular bone of the cortical and spongy parts of the femur: 1) Based on the reviewed sources, [26][27][28] the Young's modulus for the cortical part of the bone is 18.54 GPa and for the trabecular part of the bone is 3.6 GPa. 2) Considering the reviewed sources, [3,15,29] the desired value for the pore size to allow for effective cell infiltration is considered to be 0.6 mm.…”

Section: Determining the Appropriate Geometry For Cortical And Trabec...mentioning

confidence: 99%

Design and Analysis of Unit Cell Geometry to Improve Mechanical Properties and Surface‐to‐Volume Ratio of Used Scaffold in Treating Damaged Bone Tissue

Khoshgoftar,

Ansari

2024

Adv Eng Mater

View full text Add to dashboard Cite

Bone tissue damage resulting from trauma, tumor, or bone infection is one of the most common problems that humans face in everyday life. Tissue engineering is a developing method for the reconstruction and repair of damaged tissues, and a scaffold should have properties such as biocompatibility, mechanical properties suitable for the type of damaged tissue, and suitable surface characteristics for better cell adhesion. This study presents a precise and practical process for designing a scaffold used in bone tissue repair, such as the femur, and the effect of unit cell geometry on the mechanical properties and surface characteristics of the scaffold is investigated. CT scan images of the human femur area were obtained, and 3D models of the cortical and cancellous parts of the femur were constructed. The outer surface of the damaged parts was designed with ideal geometry; six types of unit cells with different geometries were designed, and the changes in the Young’s modulus were determined as a function of changes in the unit cell porosity. The cubic‐star‐shaped unit cell was chosen as the suitable unit cell for the scaffold structure, with a side length of 0.88 mm and a pore size of 0.6 mm.This article is protected by copyright. All rights reserved.

show abstract

Section: Determining the Appropriate Geometry For Cortical And Trabec...mentioning

confidence: 99%

Design and Analysis of Unit Cell Geometry to Improve Mechanical Properties and Surface‐to‐Volume Ratio of Used Scaffold in Treating Damaged Bone Tissue

Khoshgoftar,

Ansari

2024

Adv Eng Mater

View full text Add to dashboard Cite

show abstract

“…For TPBA, the supports were located at the distal and proximal ends. Here the axes are constrained vertically downward alone [15,[21][22][23].…”

Section: Fe Analysismentioning

confidence: 99%

“…In recent experiments, computer aided design and CT scanning have been used to represent geometries. Furthermore, the appropriate material properties of human bones have been considered [4][5][6]23]. The fracture load of bones has been accurately predicted using quantitative computed tomography (QCT) based FE models under diverse loading circumstances [7][8].…”

Section: Introductionmentioning

confidence: 99%

Analysis Of Human Femur Bone At Different Orientation Under Three Point Bending Load Using Fea

2022

View full text Add to dashboard Cite

The femur bone is the human body's largest and strongest bone. If this bone is affected in any accident, the injured person will be paralyzed. This work describes the fracture morphology of femur bone derived from the loading mechanisms of bending at various orientations over the femur bone. The maximum strain and displacement were determined using a finite element (FE) analysis, which was highly dependent on the precision of the recorded geometry and appropriate assignment of material properties. In this research, FE analysis was performed in a tantom three-point bending test. In actual life, loading cannot always be expected in a fixed direction. Here, the load was applied at the middle of the bone at eight different orientations, 45 apart. Maximum strain, displacement, and orientation over the femur bone were identified by this analysis.

show abstract

“…Cellular and foam structures are ubiquitous in nature. Examples range from honeycombs, 1 bone interiors, 2 insect wings, 3 to foam bubbles, 4 all of which exhibit a wide range of material properties and functionalities that cannot be realized with traditional engineering configurations. Developing mechanistic understanding and numerical optimization of cellular structures with complex geometric patterns have received extensive attention in both scientific and engineering communities 5 .…”

Section: Introductionmentioning

confidence: 99%

Cellular topology optimization on differentiable Voronoi diagrams

Fan

Xiong

Liu

et al. 2022

Numerical Meth Engineering

View full text Add to dashboard Cite

Cellular structures manifest their outstanding mechanical properties in many biological systems. One key challenge for designing and optimizing these geometrically complicated structures lies in devising an effective geometric representation to characterize the system's spatially varying cellular evolution driven by objective sensitivities. A conventional discrete cellular structure, for example, a Voronoi diagram, whose representation relies on discrete Voronoi cells and faces, lacks its differentiability to facilitate large‐scale, gradient‐based topology optimizations. We propose a topology optimization algorithm based on a differentiable and generalized Voronoi representation that can evolve the cellular structure as a continuous field. The central piece of our method is a hybrid particle‐grid representation to encode the previously discrete Voronoi diagram into a continuous density field defined in a Euclidean space. Based on this differentiable representation, we further extend it to tackle anisotropic cells, free boundaries, and functionally‐graded cellular structures. Our differentiable Voronoi diagram enables the integration of an effective cellular representation into the state‐of‐the‐art topology optimization pipelines, which defines a novel design space for cellular structures to explore design options effectively that were impractical for previous approaches. We showcase the efficacy of our approach by optimizing cellular structures with up to thousands of anisotropic cells, including femur bone and Odonata wing.

show abstract

Nondestructive Evaluation of Mechanical Properties of Femur Bone

Cited by 15 publications

References 46 publications

Design and Analysis of Unit Cell Geometry to Improve Mechanical Properties and Surface‐to‐Volume Ratio of Used Scaffold in Treating Damaged Bone Tissue

Design and Analysis of Unit Cell Geometry to Improve Mechanical Properties and Surface‐to‐Volume Ratio of Used Scaffold in Treating Damaged Bone Tissue

Analysis Of Human Femur Bone At Different Orientation Under Three Point Bending Load Using Fea

Cellular topology optimization on differentiable Voronoi diagrams

Contact Info

Product

Resources

About