In this section, you can access to the latest technical information related to the FUTURE project topic.

Fatigue crack evaluation using the non-collinear wave mixing technique

The non-collinear wave mixing technique was used for the quantitative evaluation of fatigue cracks. Two shear waves intersect and interact with fatigue cracks, which lead to the generation of a longitudinal wave. Non-collinear wave mixing experiments were conducted on different specimens, whereby the position at which the two incident waves intersected was scanned vertically below the notch and the measured signals were processed by filtering, timeâ??frequency analysis and bispectral analysis. The presence of a wave packet in waveform, or wave-mixing component at the sum frequency in timeâ??frequency domain, or bispectral peak at the sum frequency was used to characterize the fatigue cracks. The length of the fatigue cracks in two samples was estimated according to the spatial distribution of the ultrasonic nonlinear coefficient. The measured results corresponded closely with the actual lengths; therefore, the proposed method is effective for the quantitative evaluation of fatigue c...

» Author: Jingpin Jiao, Hongtao Lv, Cunfu He and Bin Wu

» Reference: Jingpin Jiao <em>et al</em> 2017 <em>Smart Mater. Struct.</em> <b>26</b> 065005

» More Information

« Go to Technological Watch



AIMPLAS Instituto Tecnológico del Plástico

C/ Gustave Eiffel, 4
(València Parc Tecnològic) - 46980
PATERNA (Valencia) - SPAIN

PHONE

(+34) 96 136 60 40

EMAIL

Project Management department - Sustainability and Industrial Recovery
life-future-project@aimplas.es