This study analyses three additively manufactured canine implants designed for angular limb deformity correction procedure through probabilistic numerical analysis. These implants have produced excellent results in-vivo and are operational to-date. Therefore, this study uses finite element analysis in conjunction with statistical analysis in order to further validate these implants from a numerical perspective. Due to uncertainties associated with boundary conditions for a bespoke implant geometry, the analyses in this study were conducted on a range of input values. An interrogation of these parameters through sensitivity analysis enabled in identifying the vital inputs. These inputs were then employed to conduct robustness analysis in order to determine the mean value of stress on which these implants ideally operate. These mean values were then compared with the associated safety and failure limit to obtain the probability of reaching these limits through different reliability techniques. A low probability of failure computed from numerical analysis in combination with the continued performance of these implants, suggests a successful integration of the methodology in the design phase of bespoke implants.
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http://dx.doi.org/10.1177/0954411920983654 | DOI Listing |
Am J Orthod Dentofacial Orthop
January 2025
Department of Orthodontics, Faculty of Dentistry, Hacettepe University, Ankara, Turkey. Electronic address:
Introduction: The objective of this study was to evaluate the effects of the miniplate application sites in the maxilla and the applied force vector changes during skeletally supported facemask application in adolescent patients with unilateral cleft lip and palate (UCLP) using finite element model (FEM) analysis.
Methods: A FEM was obtained from a cone-beam computed tomography image of a 12-year-old female patient with UCLP. Miniplates were placed on 3 different sites of the maxilla; 500 g of advancement force was applied bilaterally, parallel (0°), and downward (-30°) to the occlusal plane.
J Clin Med
December 2024
Department of Orthopaedic Surgery, Institute of Medicine, University of Tsukuba, 1-1-1, Tennodai, Tsukuba 305-8575, Ibaraki, Japan.
Proximal femoral fractures are particularly common in older adults, and cases requiring conversion to total hip arthroplasty may arise because of treatment failure or osteoarthritis. Fractures around the distal screw removal holes can be problematic. This study aimed to analyze the relationship between stem length and femoral stress distribution to determine the optimal stem length.
View Article and Find Full Text PDFSensors (Basel)
January 2025
Department of Mechanical Engineering, Politecnico di Milano, Via G. La Masa 1, 20156 Milano, Italy.
In naval engineering, particular attention has been given to containerships, as these structures are constantly exposed to potential damage during service hours and since they are essential for large-scale transportation. To assess the structural integrity of these ships and to ensure the safety of the crew and the cargo being transported, it is essential to adopt structural health monitoring (SHM) strategies that enable real-time evaluations of a ship's status. To achieve this, this paper introduces an advancement in the field of smart sensing and SHM that improves ship monitoring and diagnostic capabilities.
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January 2025
Key Laboratory of Testing Technology for Manufacturing Process MOE, Southwest University of Science and Technology, Mianyang 621010, China.
The directivity of the quasi-static component (QSC) is quantitatively investigated for evaluating the orientation of a micro-crack buried in a thin solid plate using the numerical simulation method. Based on the bilinear stress-strain constitutive model, a three-dimensional (3D) finite element model (FEM) is built for investigating the nonlinear interaction between primary Lamb waves and the micro-crack. When the primary Lamb waves at A0 mode impinge on the micro-crack, under the modulation of the contact acoustic nonlinearity (CAN), the micro-crack itself will induce QSC.
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January 2025
Acropolis Restoration Service, Hellenic Ministry of Culture, 10555 Athens, Greece.
This study focuses on the geotechnical evaluation of the foundation conditions of the Agrippa Monument at the Acropolis of Athens, aiming to propose interventions to improve stability and reduce associated risks. The assessment reveals highly uneven foundation conditions beneath the monument. A thorough collection of bibliographic references and geotechnical surveys was conducted, classifying geomaterials into engineering-geological units and evaluating critical parameters for geotechnical design.
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