Biomechanical characters of human mandible under compression load / 实用口腔医学杂志
Journal of Practical Stomatology
;
(6): 18-20, 2001.
Artículo
en Chino
| WPRIM
| ID: wpr-411830
ABSTRACT
Objective:
To study the biomechanical characters of human mandible under compression load and to deduce the constitutive equation.Methods:
Specimens taken from five mandible of fresh human cadavers were examined on INSTRON by a group of tensile tests at different strain rates (0.000 5,0.005,0.05 and 0.5 s-1).Bone mineral density of every individual mandible was measured.The effects of strain rate(**),bone mineral density (ρ) on Young'Modulus (E),strength(σu)and ultimate strain(εu) were studied and the constitutive equations were deduced using the following modelY=aρb**c.Results:
(1)σu=216.27ρ1.23**0.055(P<0.01),(2)E(Pa)=5 604.024**0.083(P<0.01),(3)εu =0.045**-0.045(P<0.01),(4)σu=1 798.87ρ-1.17**0.083ε0.82(P<0.01).Conclusions:
Strain rate and bone mineral density are important factors for the biomechanical characters of human mandible under compression load.Based on the constitutive equations,the stress level,the possibility and degree of mandible injury may be estimated.
Texto completo:
Disponible
Índice:
WPRIM (Pacífico Occidental)
Tipo de estudio:
Estudio pronóstico
Idioma:
Chino
Revista:
Journal of Practical Stomatology
Año:
2001
Tipo del documento:
Artículo
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