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Mathematical model of a head subjected to an angular acceleration.

Authors
Bycroft-GN
Source
J Biomech 1973 Sep; 6(5):487-495
NIOSHTIC No.
00033053
Abstract
A mathematical model of the head is constructed to examine the shear strains developed in the brain, considering the brain as a spherical viscoelastic medium attached to the inside of a rigid spherical shell. The mechanical wave motion generated in the brain when the head is subjected to an angular acceleration of a particular amplitude and duration is calculated and compared with experimental data for monkeys, showing that the threshold of angular acceleration necessary to cause concussion varies with the duration of the acceleration as predicted by the model. Data are given for shear strain and angular acceleration necessary for causing concussion.
Keywords
NIOSH-Publication; NIOSH-Grant; Biomechanics; Physiological-effects; Head-injuries; Physical-properties; Consciousness-loss; Mechanical-properties; Shear-modulus; Neuromuscular-disorders; Stress-strain; Shear-stress; Musculoskeletal-system-disorders; Analytical-methods; Elastic-properties; Accident-analysis
Contact
Applied Mathematics, Stanford Research Institute, 333 Ravenswood Ave., Menlo Park, California 94025
CODEN
JBMCB5
Publication Date
19730901
Document Type
Journal Article
Funding Amount
74477
Funding Type
Grant
Fiscal Year
1973
NTIS Accession No.
NTIS Price
Identifying No.
Grant-Number-R01-OH-00343
Issue of Publication
5
ISSN
0021-9290
Priority Area
Musculoskeletal-system-disorders
Source Name
Journal of Biomechanics
State
CA
Performing Organization
Stanford Research Institute, Menlo Park, California
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