The second stiffest axis of a beam-column:​ implications for cervical spine trauma

Liu, Y. King; Dai, Q. Guo

Affiliations

¹Center of Materials Research, Department of Biomedical Engineering, University of Iowa, Iowa City, IA 52242

Abstract

Based on an idealized model of a homogeneous, isotropic beam-column, the second stiffest axis under static loading was derived. The maximum allowable force for the second stiffest axis was then examined. The ratio of the maximum allowable forces of the second stiffest axis to the stiffest axis was established. The stiffness ratio of the second stiffest axis to the stiffest axis was also found. Taking buckling into consideration, the safe load region for all possible acting directions was derived. The implications of the idealized model for cervical spine trauma are discussed.

Links

DOI: 10.1115/1.3168352

PubMed: 2733406

History

Received: 1988-10-03

Revised: 1989-03-01

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Cited By (23)

Year	Entry
1997	Yoganandan N, Pintar FA, Cusick JF. Biomechanics of compression-extension injuries to the cervical spine. In: 41st Annual Proceedings, Association for the Advancement of Automotive Medicine (AAAM). November 10-11, 1997; Orlando, FL.331-344.
2015	Brolin K, Östh J, Svensson M, Sato F, Ono K, Linder A, Kullgren A. Aiming for an average female virtual human body model for seat performance assessment in rear-end impacts. In: Proceedings of the 24th International Technical Conference on the Enhanced Safety of Vehicles (ESV). June 8-11, 2015; Gothenburg, Sweden.
1999	Yoganandan N, Pintar FA, Gennarelli TA, Eppinger RH, Voo LM. Geometrical effects on the mechanism of cervical spine injury due to head impact. In: Proceedings of the 1999 International IRCOBI Conference on the Biomechanics of Impact. September 23-24, 1999; Sitges, Spain.261-270.
2016	Mattos GA, Grzebieta RH. A numerical investigation of the effects of inverted drop test methods on PMHS spine response. In: Proceedings of the 2016 International IRCOBI Conference on the Biomechanics of Injury. September 14-16, 2016; Malaga, Spain.409-418.
2016	Sato F, Odani M, Miyazaki Y, Nakajima T, Antona Makoshi J, Yamazaki K, Ono K, Svensson M, Östh J, Morikawa S, Schick S, Perez AF. Investigation of whole spine alignment patterns in automotive seated posture using upright open MRI systems. In: Proceedings of the 2016 International IRCOBI Conference on the Biomechanics of Injury. September 14-16, 2016; Malaga, Spain.113-130.
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1997	Duncan NA. The Mechanics of Curve Progression in Adolescent Idiopathic Scoliosis [PhD thesis]. McGill University; February 1997.
2015	Thomson V. Furthering the Pro-Neck-Tor Helmet Technology Through Multibody Modeling and Design [Master's thesis]. Vancouver, BC: University of British Columbia; August 2015.
1993	Cholewicki J. Mechanical Stability of the in Vivo Lumbar Spine [PhD thesis]. University of Waterloo; 1993.