Results 41 to 50 of about 448,593 (214)

Evaluation of recycled concrete by means of non destructive tests

open access: yesMateriales de Construccion, 2003
The use of recycled concrete as aggregate for the production of new concretes is a consequence of the shortage of natural resources and the environmental problems due to the storage of residual building materials.
A. A. Di Maio, L. P. Traversa
doaj   +1 more source

Evaluating subsurface damage in optical glasses [PDF]

open access: yesJournal of the European Optical Society-Rapid Publications, 2011
Hard brittle materials (e.g. glasses and ceramics) increasingly appeal to general interests because of their excellent physical, mechanical and chemical properties such as super hardness and strength at extreme temperature and chemical stability.
Wang Jian   +4 more
doaj   +1 more source

Bridge inspection practices using non-destructive testing methods

open access: yesJournal of Civil Engineering and Management, 2015
Non-Destructive Testing (NDT) methods have been developed and employed as a means of rapid and effective structural inspection. Despite the various kinds of NDT methods developed for bridge inspection, not much study has been performed on their usage and
Sangwook Lee, Nikolas Kalos
doaj   +1 more source

Application of non destructive testing to the detection of aeronautical defects in composite structures [PDF]

open access: yes, 2013
A study of two Non-destructive Testing methods (NDT) was carried out in specimens with different kinds of simulated defects. Ultrasonics test (US) and Infrared Thermography (IRT) were applied with the aim to evaluate the detectability and the accuracy of
Munoz Cuartas, Victor   +9 more
core  

Non Destructive Evaluation of Glass-Epoxy Composite using Impact-echo Method [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2017
In this paper a new method for Nondestructive testing or Nondestructive evaluation is proposed for Glass-Epoxy composite. For this purpose, impact-echo is used to evaluate the properties of composite materials, detecting internal defects and thickness ...
MohammadMahdi Amiri   +2 more
doaj  

Challenges of Embedding Fiber Bragg Grating Sensors in Castable Material: Influence of Material Shrinkage and Fiber Coatings on Ultrasonic Measurements

open access: yesSensors
Fiber optic sensors are increasingly used to measure dynamic strain fields caused by the propagation of mechanical waves. Their low intrusiveness when embedded within a structure makes them suitable for a wide range of applications.
Nicolas Derrien   +7 more
doaj   +1 more source

Non destructive investigation of defects in composite structures by three infrared thermographic techniques [PDF]

open access: yes, 2012
This paper investigates full-field measurement techniques based on Infrared Thermography for Non Destructive Testing (NDT) applications on composite materials.
Péronnet, Elodie   +10 more
core  

Evaluation of full-sized and thick cross-laminated timber using in-line non-destructive techniques

open access: yes, 2023
Advancements in non-destructive evaluation systems for predicting mechanical properties of cross-laminated timber appear to have been limited to laboratory scale, reduced sample sizes, or difficult practical solutions for industry implementation.
Brancheriau, Loic   +3 more
core   +1 more source

THz QCL - Based active imaging applied to composite materials diagnostic [PDF]

open access: yes, 2010
This paper presents a CW raster-scanning THz imaging setup, used to perform Non-Destructive Testing of Kevlar and carbon fibre samples. The setup uses a 2.5 THz Quantum Cascade Laser as a source.
Yoann Petitjean   +9 more
core   +1 more source

Non‐destructive thermal ageing evaluation of P(VDF‐HFP) film based on broadband dielectric response

open access: yesHigh Voltage, 2022
Capacitors and sensors based on polymer dielectric materials are key components in electrical systems and electronic devices. Considering the temperature rise during operation, an effective evaluation method for the thermal ageing of polymer matrix is ...
Qian Wang   +6 more
doaj   +1 more source

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