PCA-Based Temperature Effect Compensation in Monitoring of Steel Beam Using Guided Waves

2020 ◽  
pp. 85-96
Author(s):  
J. Q. Tu ◽  
C. B. Yun ◽  
X. Xu ◽  
Z. F. Tang ◽  
J. J. Wu
Keyword(s):  
Temperature Effect ◽  
Guided Waves ◽  
Steel Beam

scholarly journals Temperature affected guided wave propagation in a composite plate complementing the Open Guided Waves Platform

2019 ◽  
Vol 6 (1) ◽  
Author(s):  
Jochen Moll ◽  
Christian Kexel ◽  
Serena Pötzsch ◽  
Marcel Rennoch ◽  
Axel S. Herrmann
Keyword(s):  
Wave Propagation ◽  
Temperature Effect ◽  
Guided Waves ◽  
Measurement Data ◽  
Guided Wave ◽  
Assessment Development ◽  
Cfrp Plate ◽  
Guided Wave Propagation ◽  
Wide Range ◽  
Technical Validation

Abstract The influence of temperature is regarded as particularly important for a structural health monitoring system based on ultrasonic guided waves. Since the temperature effect causes stronger signal changes than a typical defect, the former must be addressed and compensated for reliable damage assessment. Development of new temperature compensation techniques as well as the comparison of existing algorithms require high-quality benchmark measurements. This paper investigates a carbon fiber reinforced plastic (CFRP) plate that was fully characterized in previous research in terms of stiffness tensor and guided wave propagation. The same CFRP plate is used here for the analysis of the temperature effect for a wide range of ultrasound frequencies and temperatures. The measurement data are a contribution to the Open Guided Waves (OGW) platform: http://www.open-guided-waves.de. The technical validation includes initial results on the analysis of phase velocity variations with temperature and exemplary damage detection results using state-of-the-art signal processing methods that aim to suppress the temperature effect.

Analysis of the high temperature effect in conical nozzle

2017 ◽  
Author(s):  
João Felipe de Araujo Martos ◽  
Paulo Toro ◽  
Israel Rêgo ◽  
sergio nicolás pachón laitón ◽  
Bruno Coelho Lima
Keyword(s):  
High Temperature ◽  
Temperature Effect ◽  
Conical Nozzle ◽  
High Temperature Effect

TEMPERATURE EFFECT ON MICROSTRUCTURAL ANALYSIS OF STEEL DURING HEAT TREATMENT

2020 ◽  
Author(s):  
SAMUEL BRITO ◽  
RODOLFO SOBRAL ◽  
Luiz Carlos Sacramento ◽  
Marcos Paulo de Souza Junior
Keyword(s):  
Heat Treatment ◽  
Temperature Effect ◽  
Microstructural Analysis
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