The nonlinear relationship between speed of sound and compression in articular cartilage: Measurements and modeling.
J Mech Behav Biomed Mater
; 1102020 10.
Article
en En
| MEDLINE
| ID: mdl-32952604
ABSTRACT
We measured speed of sound in bovine articular cartilage as a function of compressive strain. Using techniques we developed, it was possible to apply strain starting from the unstrained, full height of a sample. Our measurements showed that speed of sound was not a monotonic function of strain as reported in earlier investigations. Speed increased with increasing strain over a range of lower strains. It reached a maximum, and then decreased as the strain increased further. These results were corroborated using a model of wave propagation in deformable porous materials. Using this model, we also established conditions under which a maximum in the speed would exist for samples in compression. Our measurements and analysis resolve the conflicting results reported in previous studies.
Palabras clave
Texto completo:
1
Bases de datos:
MEDLINE
Asunto principal:
Cartílago Articular
Límite:
Animals
Idioma:
En
Revista:
J Mech Behav Biomed Mater
Asunto de la revista:
ENGENHARIA BIOMEDICA
Año:
2020
Tipo del documento:
Article
País de afiliación:
Estados Unidos