title: Statistically and biomechanically based criterion for impact-induced skull fracture.
abstract: This work developed a skull fracture criterion for impact-induced head injury, using post mortem human subject tests, anatomical test device measurements, statistical analyses, and finite element modeling. It is shown that skull fracture correlates with the tensile strain in the outer table of the cranial bone, and an index termed the Skull Fracture Correlate (SFC) predicts injury. SFC offers several advantages as a protection criterion. It accounts for compliance of the impact site; it is extensible to varying head mass; and it is easily implemented using current software. For a 15% or less probability of skull fracture the criterion is SFC < 120 g, with a 95% confidence band of 88 < SFC < 135 g.
authors.affiliation: Jaycor, Inc.
authors.forename: Michael
authors.initials: M
authors.lastname: Vander Vorst
authors.forename: James
authors.initials: J
authors.lastname: Stuhmiller
authors.forename: Kevin
authors.initials: K
authors.lastname: Ho
authors.forename: Narayan
authors.initials: N
authors.lastname: Yoganandan
authors.forename: Frank
authors.initials: F
authors.lastname: Pintar
mesh_terms: D000054:Acceleration / Q000009:adverse effects*; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D020342:Finite Element Analysis; D006801:Humans; D008297:Male; D008875:Middle Aged; D012044:Regression Analysis; D015203:Reproducibility of Results; D012307:Risk Factors; D012887:Skull Fractures / Q000209:etiology* / Q000503:physiopathology*; D013314:Stress, Mechanical; D013718:Tensile Strength / Q000502:physiology*