Skip to main content

Main navigation

  • About ITEFI
  • Research
  • Formación y empleo
  • OpenLab
  • Servicios científico técnicos
  • Staff Directory

Ultrasonic crack evaluation by phase coherence processing and TFM and its application to online monitoring in fatigue tests

ultrasound
crack sizing
total focusing method - TFM
phase coherence imaging
fatigue test
J.Camacho; D.Atehortua; J.F. Cruza; J.Brizuela; J.Ealo
NDT and E International, vol. 93, pp. 164-174, Elsevier BV.
http://dx.doi.org/10.1016/j.ndteint.2017.10.007

This work proposes a new ultrasonic imaging method for crack evaluation with arrays, and investigates its application to online monitoring of crack propagation in fatigue tests. The Total Focusing Method (TFM) is used to obtain the best possible image of the crack propagation path and orientation, while Phase Coherence Imaging (PCI) is used to precisely determining its length by accurately locating the tips position. Experimental verification was performed with a 15 MHz array and a set of 4 samples tested up to different crack lengths by cyclic loading. Crack orientation and length obtained with the proposed method showed good matching with optical measurements, and sizing by tip detection with PCI was more robust than amplitude-drop sizing with TFM.

Acknowledgments

This work was partially founded by the projects: ILINK-0988 of the Spanish National Research Council, DPI2013-42236-R of the Spanish Ministry of Economy and Competitivity, PICT-2014-1768 of the ANPCyT and 1106-669-45414 of the “Francisco José De Caldas National Fund for Science, Technology, and Innovation”, Colciencias, Colombia.

GSTU

proyecto/s relacionado/s

  • Nuevas tecnologías ultrasónicas para la inspección de materiales compuestos
    Programa i-LINK (CSIC)
  • Tecnologías avanzadas de imagen ultrasónica para diagnóstico precoz de cáncer de mama (TAIU-MAM)
    Programa Estatal de I+D+i Orientada a los Retos de la Sociedad (AEI)
Acoustics and Non Destructive Evaluation (DAEND)
  • Environmental Acoustics (GAA)
  • G Carma: Materials Characterization by Non Destructive Evaluation
  • ULAB, Ultrasounds for Liquid Analysis and Bioengineering
Information and Communication Technologies (TIC)
  • Cybersecurity and Privacy Protection Research Group (GiCP)
  • Research group on Cryptology and Information Security (GiCSI)
    • Quantum Communications Laboratory (LCQE)
  • Multichannel Ultrasonic Signal Processing Group (MUSP)
Sensors and Ultrasonic Systems (DSSU)
  • Ultrasonic Systems and Technologies (USTG)
  • Nanosensors and Smart Systems (NoySi)
  • Ultrasonic Resonators for cavitation and micromanipulation (RESULT)
  • Advanced Sensor Technology (SENSAVAN)
  • Quantum Electronics (QE)
Laboratorios
  • Laboratorio de Acústica
  • Laboratorio de Metrología Ultrasónica Médica (LMUM)
  • Laboratorio de Comunicaciones Cuánticas
  • Laboratory for International Collaboration in Advanced Biophotonics Imaging

Instituto de Tecnologías Físicas y de la Información Leonardo Torres Quevedo  - ITEFI
C/ Serrano, 144. 28006 - Madrid • Tel.: (+34) 91 561 88 06  Contacto  •  Intranet
EDIFICIO PARCIALMENTE ACCESIBLE POR PERSONAS CON MOVILIDAD REDUCIDA