Mathematical model of a head subjected to an angular acceleration.

Details

• Personal Author:
  Bycroft GN
• Description:
  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. [Description provided by NIOSH]
• Subjects:
  Accidents, Occupational Biomechanical Phenomena Musculoskeletal Diseases Nervous System Nervous System Diseases Occupational Health Safety
• Keywords:
  Accident-analysis Analytical-methods Biomechanics Consciousness-loss Elastic-properties Head-injuries Mechanical-properties Musculoskeletal-system-disorders Neuromuscular-disorders NIOSH-Grant NIOSH-Publication Physical-properties Physiological-effects Shear-modulus Shear-stress Stress-strain

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• ISSN:
  0021-9290
• Document Type:
  Text
• Funding:
  Grant
• Genre:
  Journal Article
• Place as Subject:
  California ; OSHA Region 9
• CIO:
  National Institute for Occupational Safety and Health (NIOSH)
• Topic:
  Workplace Safety & Health
• Location:
  North America
• Pages in Document:
  487-495
• Volume:
  6
• Issue:
  5
• NIOSHTIC Number:
  nn:00033053
• Citation:
  J Biomech 1973 Sep; 6(5):487-495
• Contact Point Address:
  Applied Mathematics, Stanford Research Institute, 333 Ravenswood Ave., Menlo Park, California 94025
• Federal Fiscal Year:
  1973
• NORA Priority Area:
  Disease and Injury: Musculoskeletal Disorders of the Upper Extremities
• Performing Organization:
  Stanford Research Institute, Menlo Park, California
• Peer Reviewed:
  True
• Start Date:
  19700801
• Source Full Name:
  Journal of Biomechanics
• End Date:
  19731130
• Collection(s):
  National Institute for Occupational Safety and Health
• Main Document Checksum:
  urn:sha-512:f59cd338e6ed1d8c7253401f9a5aed9a12244f5e164352de8551c3ada8d14c1f5772465e7260c590ab6461525ba48a1f5ea7f163de659012c9c98354156eadc9
• Download URL:
  https://stacks.cdc.gov/view/cdc/183943/cdc_183943_DS1.pdf
• File Type:
  [PDF - 611.58 KB ]