A Distributed Parameter Model of the Inertially Loaded Human Spine: A Finite Difference Solution.
Abstract
The prupose of this research was the development and solutions of nonlinear continuum models of the human spinal response to impact, with emphasis on the vertical impact-pilot ejection problem. A derivation is given for a general one-dimensional continuum model of the spine considered as a curved homogenous beam and subject to the eccentric inertial loading of the human torso. A reduction to a small strain, large deflection model is made by introducing the assumptions of linear elasticity. A further reduction to a small strain, small deflection model is made by assuming small curvatures. A three parameter viscoelastic model is also treated. Methods of solution for these nonlinear dynamic models are formulated using the finite difference calculus. (Modified author abstract)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 01, 1973
- Accession Number
- AD0773859
Entities
People
- Dale U. Von Rosenberg
- Harold J. Cramer
- Y. King Liu
Organizations
- Tulane University of Louisiana