TY - JOUR
T1 - Fatigue damage prediction in the annulus of cervical spine intervertebral discs using finite element analysis
AU - Subramani, Adhitya V.
AU - Whitley, Phillip E.
AU - Garimella, Harsha T.
AU - Kraft, Reuben H.
N1 - Funding Information:
This work was partially supported by the US Army under grant W81XWH-14-C-003. This work was also supported in part through instrumentation funded by the National Science Foundation (NSF) through grant OCI0821527. Any opinions, findings and conclusions expressed in this article are those of the authors and do not necessarily reflect the views of the National Science Foundation.
Publisher Copyright:
© 2020 Informa UK Limited, trading as Taylor & Francis Group.
PY - 2020/8/17
Y1 - 2020/8/17
N2 - 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.
AB - 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.
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U2 - 10.1080/10255842.2020.1764545
DO - 10.1080/10255842.2020.1764545
M3 - Article
C2 - 32401044
AN - SCOPUS:85084830659
SN - 1025-5842
VL - 23
SP - 773
EP - 784
JO - Computer Methods in Biomechanics and Biomedical Engineering
JF - Computer Methods in Biomechanics and Biomedical Engineering
IS - 11
ER -