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Application and discussion of various crack closure models to predict fatigue crack growth in 6061-T651 aluminium alloy
(2021-12-01)
Fatigue is one of the main causes of failures as well as mechanical fractures in structural details made of aluminium alloys under cyclic loading, where the materials (during the crack growth process) are subject to the ...
Image-Based Automated Width Measurement of Surface Cracking
(2021)
The detection of cracks is an important monitoring task in civil engineering infrastructure devoted to ensuring durability, structural safety, and integrity. It has been traditionally performed by visual inspection, and ...
Ultrasonic crack evaluation by phase coherence processing and TFM and its application to online monitoring in fatigue tests
(Elsevier, 2017-10)
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 ...
Embedded crack elements with non-uniform discontinuity modes
(Springer, 2006-01-01)
The consequences of the use of embedded crack finite elements with uniform discontinuity modes (opening and sliding) to simulate crack propagation in concrete are investigated. It is shown the circumstances in which the ...
Embedded crack elements with non-uniform discontinuity modes
(Springer, 2006-01-01)
The consequences of the use of embedded crack finite elements with uniform discontinuity modes (opening and sliding) to simulate crack propagation in concrete are investigated. It is shown the circumstances in which the ...
Experimental identification of structural changes and cracks in beams using a single accelerometer
(Springer Heidelberg, 2018-01)
Several advances in the structural health monitoring field and in crack identification techniques were achieved in recent years. Nonetheless, the use of those techniques for crack identification in beams by the industry ...
Analysis of sensor placement in beams for crack identification
(Latin Amer J Solids Structures, 2018-10)
A previous study has shown that the mode shapes of a beam are more sensitive to damage than other vibrational parameters, thus making them better suited for crack identification purposes. However, they have the disadvantage ...
Estudo da fissuração de concretos refratários durante o processo de cura auxiliado pela técnica de correlação de imagens digitais
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEMCâmpus São Carlos, 2015-12-23)
The growing demand of the steel industry for cheaper and more efficient production
processes creates a necessity for new refractory materials. These requirements
are written in terms of more robust concretes, with a ...
Semantic segmentation model for crack images from concrete bridges for mobile devices
(Sage, 2020)
Computer vision algorithms are powerful techniques that can be used for remotely monitoring and
inspecting civil structures. Detecting and segmenting cracks in images of concrete bridges can provide
useful information ...
Fault detection in rotating machinery by using the modal state observer approach
(2019-10-13)
The existence of cracks in rotating shafts can lead to failures, which imply economic losses and security issues. In the last decades, attention has been devoted to this subject leading to the development of vibration-based ...