International Journal for Multiscale Computational Engineering最新文献_第4页

Modeling of Fracture Behavior of Four-Phase Concrete using a DEM-enhanced Structure Generation 基于dem增强结构生成的四相混凝土断裂行为建模

IF 1.4 4区工程技术

International Journal for Multiscale Computational Engineering Pub Date : 2023-01-01 DOI: 10.1615/intjmultcompeng.2023047910

Hangtian Song, Qingxiang Meng, Ning Guo, Xudong Chen, W. Xu, Yajun Cao

引用次数: 0

Understanding the biomechanical response of progressive thread dental implants using multi-scale finite element analysis 应用多尺度有限元分析了解牙种植体的生物力学响应

4区工程技术

International Journal for Multiscale Computational Engineering Pub Date : 2023-01-01 DOI: 10.1615/intjmultcompeng.2023049024

Arindam Chakraborty, Kalash Darshan Sahare, Santanu Majumder, Amit Roy Chowdhury

{"title":"Understanding the biomechanical response of progressive thread dental implants using multi-scale finite element analysis","authors":"Arindam Chakraborty, Kalash Darshan Sahare, Santanu Majumder, Amit Roy Chowdhury","doi":"10.1615/intjmultcompeng.2023049024","DOIUrl":"https://doi.org/10.1615/intjmultcompeng.2023049024","url":null,"abstract":"Implant osseointegration is an important factor dictating its long-term efficacy, in situ. Along with various biological factors, it is greatly influenced by the mechanical stimulus at the peri-implant bone. This study aims to understand the biomechanical response of progressive thread dental implants using multi-scale-based finite element analysis employing macro and micro models of bone. µ-CT images of a cadaveric human mandible of its premolar region were obtained along with CT scan of the same region to generate computational models. Total six dental implants were designed having regular and progressive thread depths. Three different stages of healing of the bone-implant assembly were simulated parametrically. The biomechanical environment at the peri-implant bone was analysed considering the ‘Mechanostat’ hypothesis. The obtained results revealed that bone strain is significantly higher during the initial healing phase when the bone is weakest. During this phase, implant stress and its displacement in both buccolingual and coronoapical directions are also noticeably higher. Also, displacements of progressive thread implants were lower in all the healing phases compare to the implants with constant thread depth. The observations of this µFEA study highlight the clinical applicability of a progressive thread dental implant as it generates larger functional surface area thus engaging higher trabeculae and therefore suitable for weaker bone conditions. Furthermore, by comparing the stress values at bone and implant between the two bone models, the CT-based model having inhomogeneous material was deemed suitable as an alternative to computationally expensive µFEA.","PeriodicalId":50350,"journal":{"name":"International Journal for Multiscale Computational Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135650448","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Multiscale simulation of hydrodynamic step bearing with surface roughness 考虑表面粗糙度的流体动力阶梯轴承多尺度模拟

IF 1.4 4区工程技术

International Journal for Multiscale Computational Engineering Pub Date : 2023-01-01 DOI: 10.1615/intjmultcompeng.2023047743

Chang Cao, Yongbin Zhang

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Complete and semi-complete explicit algorithms of a unified critical state model for over-consolidation clays 超固结粘土统一临界状态模型的完全和半完全显式算法

IF 1.4 4区工程技术

International Journal for Multiscale Computational Engineering Pub Date : 2023-01-01 DOI: 10.1615/intjmultcompeng.2023047907

Xiao-Wen Wang, K. Cui, Ran Yuan

引用次数: 1

Calibration Method of Microscopic Parameters for Similar Material of Surrounding Rock based on DEM 基于DEM的围岩相似材料细观参数标定方法

IF 1.4 4区工程技术

International Journal for Multiscale Computational Engineering Pub Date : 2023-01-01 DOI: 10.1615/intjmultcompeng.2023048155

Zhong Lei, Gonghe Wang, Zhiguo Yan

引用次数: 0

Assessment of mechanical responses between trabecular bones and porous scaffolds under static loading and fluid flow conditions: A finite element approach 静载荷和流体流动条件下小梁骨和多孔支架之间力学反应的评估:有限元方法

4区工程技术

International Journal for Multiscale Computational Engineering Pub Date : 2023-01-01 DOI: 10.1615/intjmultcompeng.2023049206

Parthasarathi Samanta, Surajit Kundu, Abhisek Gupta, Masud Rana, Nitesh Mondal, Amit Roy Chowdhury

{"title":"Assessment of mechanical responses between trabecular bones and porous scaffolds under static loading and fluid flow conditions: A finite element approach","authors":"Parthasarathi Samanta, Surajit Kundu, Abhisek Gupta, Masud Rana, Nitesh Mondal, Amit Roy Chowdhury","doi":"10.1615/intjmultcompeng.2023049206","DOIUrl":"https://doi.org/10.1615/intjmultcompeng.2023049206","url":null,"abstract":"3D Porous scaffold is one of the standard and evocative approaches to creating a favorable biomechanical environment in tissue engineering for tissue regeneration and repair. The architectural design parameters (e.g., pore-shape, size, distribution and interconnectivity; permeability; specific surface area etc.) of the porous model have significant influence on their mechano-biological behavior. Flow dynamics of fluid is a very vital phenomenon in understanding how the blood flows through the porous structure which is the responsibility of the biological behavior of the cell. As permeability and porosity are the essential parameters of scaffolds architecture, in this study, von-Mises stress, deformation, wall shear stress (WSS) and the pressure drop across the model have been investigated. Using computational fluid dynamics, geometrical, static structure and WSS are compared with the natural bone with different porosity to identify which architectural design is close to the bone.","PeriodicalId":50350,"journal":{"name":"International Journal for Multiscale Computational Engineering","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136302433","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multiscale mechanobiological modelling of the cortical/spongy interface using finite elements 基于有限元的皮质/海绵体界面多尺度力学生物学建模

4区工程技术

International Journal for Multiscale Computational Engineering Pub Date : 2023-01-01 DOI: 10.1615/intjmultcompeng.2023048368

Imed SOLTANI, Abdelwahed BARKAOUI, Soufiene BETTAIBI, Sandipan ROY

引用次数: 0

Variationally Derived Discontinuous Galerkin Method: Application to Dynamic Thermoelasticity 变分间断伽辽金法在动态热弹性中的应用

IF 1.4 4区工程技术

International Journal for Multiscale Computational Engineering Pub Date : 2023-01-01 DOI: 10.1615/intjmultcompeng.2023046768

Pinlei Chen, A. Masud

引用次数: 1

Computational Framework for Human Detection Through Improved UWB Radar System 基于改进超宽带雷达系统的人体检测计算框架

IF 1.4 4区工程技术

International Journal for Multiscale Computational Engineering Pub Date : 2023-01-01 DOI: 10.1615/intjmultcompeng.2023047756

P. R., Banu Priya Prathaban, J. M, Subash Rajendran, A. M

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INDEX, VOLUME 21, 2023 索引，2023年第21卷

IF 1.4 4区工程技术

International Journal for Multiscale Computational Engineering Pub Date : 2023-01-01 DOI: 10.1615/intjmultcompeng.v21.i6.60

引用次数: 0