基于有限元分析的颈椎椎间盘环疲劳损伤预测。

PubMed ID
G H
发表日期 2020年Aug月

原始出处 生物力学和生物医学工程中的计算机方法
Computer methods in biomechanics and biomedical engineering
作者 Subramani  Adhitya V  Whitley  Phillip E  Garimella  Harsha T  Kraft  Reuben H 

文献标题 基于有限元分析的颈椎椎间盘环疲劳损伤预测。
Fatigue damage prediction in the annulus of cervical spine intervertebral discs using finite element analysis.
Fatigue damage prediction in the annulus of cervical spine intervertebral discs using finite element analysis.

文献摘要

颈部疼痛是影响美军人员工作表现的主要抑制剂。由于多年军事活动而反复暴露于循环载荷下,可导致颈椎间盘环疲劳损伤的累积,导致颈部疼痛。我们建立了一个基于连续损伤力学的计算损伤模型,用于预测在军事载荷作用下颈椎间盘环的疲劳损伤。通过将此疲劳损伤模型与颈椎有限元模型相结合,我们克服了颈椎环应力分布均匀的基本假设。由此产生的单元损伤预测使我们深入了解损伤起始位置和颈椎间盘环疲劳损伤的发展模式。


Neck pain is a major inhibitor affecting the performance of U.S. military personnel. Repetitive exposure to cyclic loading due to military activities over several years can lead to accumulation of fatigue damage in the cervical intervertebral disc annuli, leading to neck pain. We have developed a computational damage model based on continuum damage mechanics, to predict fatigue damage to cervical disc annuli over several years of exposure to military loading scenarios. By integrating this fatigue damage model with a finite element model of the cervical spine, we have overcome the underlying assumption of a uniform stress distribution in the annulus. The resulting element-wise damage prediction gives us insight into the location of damage initiation and pattern of fatigue damage progression in the cervical disc annulus.

Neck pain is a major inhibitor affecting the performance of U.S. military personnel. Repetitive exposure to cyclic loading due to military activities over several years can lead to accumulation of fatigue damage in the cervical intervertebral disc annuli, leading to neck pain. We have developed a computational damage model based on continuum damage mechanics, to predict fatigue damage to cervical disc annuli over several years of exposure to military loading scenarios. By integrating this fatigue damage model with a finite element model of the cervical spine, we have overcome the underlying assumption of a uniform stress distribution in the annulus. The resulting element-wise damage prediction gives us insight into the location of damage initiation and pattern of fatigue damage progression in the cervical disc annulus.


获取全文 10.1080/10255842.2020.1764545