Viscoelastic modelling of impacted morsellised bone accurately describes unloading behaviour: an experimental study of stiffness moduli and recoil properties.

Fosse L; Muller S; Ronningen H; Irgens F; Benum P

首页> 外文期刊>Journal of Biomechanics >Viscoelastic modelling of impacted morsellised bone accurately describes unloading behaviour: an experimental study of stiffness moduli and recoil properties.

【24h】

Viscoelastic modelling of impacted morsellised bone accurately describes unloading behaviour: an experimental study of stiffness moduli and recoil properties.

机译：受影响的杂碎骨的粘弹性模型准确地描述了卸载行为：刚度模量和反冲性能的实验研究。

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

Morsellised bone impaction grafting is commonly used for revision arthroplasty surgery. Several reports have described the mechanical behaviour of this bone material during impaction and loading. In this study we observed the unloading progress. The loose morsellised bone was modified by particle size, particle size distribution, water and fat content. Bone pellets were constructed using different impaction energies. After impaction, the pellets were loaded statically, after which their swelling was recorded at three unloading levels. We deduced two time-dependent recoil properties, the time resistant number (TRN) and the half total swelling time (HTST), and also one stiffness property, the unloading confined modulus of elasticity (UCME). In impacted morsellised bone, the progress of swelling is visco-elastic. Bone pellets with an even distribution of particle sizes have the most rapid recoil. Those with a high liquid content recoil more slowly, and to a significantly greater extent, than pellets with low liquid content. The recoil of pellets with low liquid content is instantaneous, i.e. unrecordable, and the displacement is significantly less than in other pellet samples.

机译：杂散骨植骨术通常用于翻修置换术。一些报告描述了这种骨材料在撞击和加载过程中的机械性能。在这项研究中，我们观察了卸货进度。松散的杂碎骨通过粒径，粒径分布，水和脂肪含量进行了修改。使用不同的冲击能量构造骨颗粒。撞击后，将小丸静态加载，然后以三个卸载水平记录其溶胀。我们推导了两个随时间变化的反冲特性，即耐时数（TRN）和总膨胀时间的一半（HTST），还推导了一种刚度特性，即卸载限制弹性模量（UCME）。在受影响的杂碎骨中，肿胀的进展是粘弹性的。粒径均匀分布的骨丸具有最快的后坐力。与低液体含量的颗粒相比，高液体含量的颗粒反冲速度更慢，而且幅度更大。液体含量低的颗粒的后坐力是瞬时的，即不可记录，并且位移明显小于其他颗粒样品。

著录项

来源
《Journal of Biomechanics》 |2006年第12期|共8页
作者
Fosse L; Muller S; Ronningen H; Irgens F; Benum P;
展开▼
作者单位

展开▼
收录信息
原文格式 PDF
正文语种 eng
中图分类生物工程学（生物技术）;
关键词
Skeletal bone; Impaction; NOS; particle; Liquid substance; Swelling;

机译：骨骼;撞击;NOS;颗粒;液体物质;肿胀;

相似文献

外文文献
中文文献
专利

1. Viscoelastic modelling of impacted morsellised bone accurately describes unloading behaviour: an experimental study of stiffness moduli and recoil properties. [J] . Fosse L, Muller S, Ronningen H, Journal of Biomechanics . 2006,第12期

机译：受影响的杂碎骨的粘弹性模型准确地描述了卸载行为：刚度模量和反冲性能的实验研究。
2. Morsellised sawbones is an acceptable experimental substitute for the in vitro elastic and viscoelastic mechanical characterisation of morsellised cancellous bone undergoing impaction grafting [J] . AyersM.P., CliftS.E., GheduzziS. Medical engineering & physics. . 2014,第1期

机译：杂碎锯齿骨是接受冲击移植的杂碎化松质骨的体外弹性和粘弹性力学表征的可接受的实验替代品
3. Constitutive models for impacted morsellised cortico-cancellous bone [J] . Phillips A, Pankaj P, May F, Biomaterials . 2006,第9期

机译：杂碎的皮质-松质骨的本构模型
4. An experimental study and modeling of loading and unloading of nonlinear viscoelastic contacts [C] . Tsai, C.-H.D., Imin Kao, Yoshimoto, K., IEEE/RSJ International Conference on Intelligent Robots and Systems;IROS 2009 . 2009

机译：非线性粘弹性接触的加载与卸载的实验研究与建模
5. Use of finite element method modelling and rapid prototyping to study the effect of trabecular bone architecture on apparent mechanical properties. [D] . Buie, Helen Ruth. 2006

机译：使用有限元方法建模和快速原型研究小梁骨结构对表观机械性能的影响。
6. A Fibre-Reinforced Poroviscoelastic Model Accurately Describes the Biomechanical Behaviour of the Rat Achilles Tendon [O] . Hanifeh Khayyeri, Anna Gustafsson, Ashley Heuijerjans, -1

机译：纤维增强的多孔粘弹性模型准确描述了大鼠跟腱的生物力学行为
7. This article presents a new numerical model describing the behaviour of a thermally thick wood sample exposed to high solar heat flux (above 1 MW/m2). A preliminary study based on dimensionless numbers is used to classify the problem and support model building assumptions. Then, a model based on mass, momentum and energy balance equations is proposed. These equations are coupled with liquid-vapour drying model and pseudo species biomass degradation model. By comparing to a former experimental study, preliminary results have shown that these equations are not enough to accurately predict biomass behaviour under high solar heat flux. Indeed, a char layer acting as radiative shield forms on the sample exposed surface. In addition to this classical set of equations, it is mandatory to take into account radiation penetration into the medium. Furthermore, as biomass contains water, medium deformation consecutively to char steam gasification must also be implemented. Finally, with the addition of these two strategies, the model is able to properly capture the degradation of biomass when exposed to high radiative heat flux over a range of sample initial moisture content. Additional insights of biomass behaviour under high solar heat flux were also derived. Drying, pyrolysis and gasification fronts are present at the same time inside of the sample. The coexistence of these three thermochemical fronts leads to char gasification by the steam produced from drying of the sample, which it is the main phenomenon behind medium ablation. [O] . Pozzobon, Victor, Salvador, Sylvain, Bézian, Jean Jacques 2018

机译：本文提供了一个新的数值模型，该模型描述了暴露于高太阳热通量（高于1 / MW / m2）的热厚木材样品的行为。基于无量纲数的初步研究用于对问题进行分类并支持模型构建假设。然后，提出了一种基于质量，动量和能量平衡方程的模型。这些方程式与液体蒸汽干燥模型和假物种生物质降解模型耦合。通过与以前的实验研究进行比较，初步结果表明，这些方程不足以准确预测高太阳热通量下的生物量行为。的确，在样品暴露的表面上形成了充当辐射屏蔽层的炭层。除了这套经典的方程式之外，还必须考虑到辐射向介质的渗透。此外，由于生物质中含有水，因此还必须在炭蒸气汽化后进行连续的介质变形。最后，通过添加这两种策略，该模型能够在一定范围的样品初始水分含量下暴露于高辐射热通量的情况下，正确捕获生物质的降解。还得出了在高太阳热通量下生物量行为的其他见解。样品内部同时存在干燥，热解和气化前沿。这三个热化学前沿的共存会导致样品干燥产生的蒸汽产生焦炭气化，这是介质烧蚀的主要现象。

Viscoelastic modelling of impacted morsellised bone accurately describes unloading behaviour: an experimental study of stiffness moduli and recoil properties.

摘要

著录项

相似文献

相关主题

期刊订阅