Applying diffuse ultrasound under dynamic loading to improve closed crack characterization in concrete.
J Acoust Soc Am
; 134(2): EL211-6, 2013 Aug.
Article
em En
| MEDLINE
| ID: mdl-23927227
ABSTRACT
Recent studies show the ability of diffuse ultrasound to characterize surface breaking cracks in concrete. However, derived parameters are sensitive to the presence of partially opened zones along the crack whose pattern may differ from one sample to another. The aim of this letter is to study the variation of diffuse ultrasound parameters while the sample is driven by a low frequency bending load which alternatively opens and closes the crack, allowing to access supplementary information about its morphology. The results show the sensitivity of the method for various crack depths and highlight its potential for concrete nondestructive evaluation.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Som
/
Ultrassom
/
Materiais de Construção
/
Arquitetura de Instituições de Saúde
Tipo de estudo:
Prognostic_studies
Idioma:
En
Revista:
J Acoust Soc Am
Ano de publicação:
2013
Tipo de documento:
Article
País de afiliação:
França