Non‐destructive techniques for structural characterization of cultural heritage: A pilot case study

2021 ◽  
Author(s):  
Eleonora Spoldi ◽  
Ileana Ippolito ◽  
Alberto Stella ◽  
Salvatore Russo
Keyword(s):  
Cultural Heritage ◽  
Structural Characterization ◽  
Non Destructive ◽  
Non Destructive Techniques

scholarly journals Sonic and Impact Test for Structural Assessment of Historical Masonry

2019 ◽  
Vol 9 (23) ◽  
pp. 5148 ◽  
Author(s):  
Alessandro Grazzini
Keyword(s):  
Impact Test ◽  
Structural Parameters ◽  
Historical Masonry ◽  
2016 Amatrice Earthquake ◽  
The Impact ◽  
Santa Maria ◽  
Non Destructive ◽  
Non Destructive Techniques

Diagnostics is a very important tool of knowledge in the field of historical buildings. In particular, non-destructive techniques allow to deepen the study of the mechanical characteristics of the historical walls without compromising the artistic value of the monumental building. A case study of the use of sonic and impact tests was described, performed using the same instrumented hammer, for the characterization of the masonry walls at the Sanctuary of Santa Maria delle Grazie at Varoni, one of the churches damaged in the 2016 Amatrice earthquake. Sonic tests showed the presence of a discontinous masonry texture, as well as confirming the ineffectiveness of the strengthening work made by injections of lime mortar. The impact test allowed us to obtain the elastic modulus of the omogeneous stones of the masonry. The results obtained from the non-destructive techniques were confirmed by the flat jacks test carried out on the building, confirming the great potential of the non-destructive diagnostics suitable for analyzing important structural parameters without affecting the preservation of historical masonry structures.

Characterization of Old Nuclear Waste Packages Coupling Photon Activation Analysis and Complementary Non-Destructive Techniques

2014 ◽  
Vol 61 (4) ◽  
pp. 2137-2143 ◽  
Author(s):  
Frederick Carrel ◽  
Bruno Charbonnier ◽  
Romain Coulon ◽  
Frederic Laine ◽  
Stephane Normand ◽  
...  
Keyword(s):  
Activation Analysis ◽  
Nuclear Waste ◽  
Photon Activation Analysis ◽  
Photon Activation ◽  
Non Destructive ◽  
Non Destructive Techniques

Durability of a ventilated stone facade: A case study of a limestone facade affected by the corrosion of the anchorage system

2020 ◽  
Author(s):  
Vera Pires de Almeida Ribeiro
Keyword(s):  
Chemical Characterization ◽  
Masonry Walls ◽  
Concrete Walls ◽  
Reinforced Concrete Walls ◽  
Correct Execution ◽  
Anchoring System ◽  
Ventilated Facade ◽  
Non Destructive

<p>The mechanical behavior of a natural stone ventilated facade is inevitably based on the correct execution of both anchoring elements, stone cladding and enclosure support, either with brick masonry walls or reinforced concrete walls. In the case studied in the present work, the origin of the damages on the facade of a building located in Lisbon has been analyzed, where stone detachments were starting to occur. This enclosure is a ventilated facade cladded with Portuguese limestone Lioz slabs. Non-destructive borescope analysis of the metallic anchoring system employed was performed, as well as X-Ray fluorescence laboratory analysis (FRX) for chemical characterization of the anchoring material. Results obtained demonstrated the problem cause on the stone facade due to incorrect metallic anchoring selection and poor execution combined with stress corrosion effect, especially for slabs with larger dimensions.</p>

Characterization of the Wear in the Turbojet Fins

2015 ◽  
Vol 640 ◽  
pp. 29-34
Author(s):  
Zohra Labed ◽  
Djamel Guechi ◽  
Necib Brahim
Keyword(s):  
Fatigue Damage ◽  
Eddy Current ◽  
Non Destructive ◽  
Non Destructive Techniques

The wear is very difficult to characterize because of its complexity and its measurement phenomenon. Our work is to prepare samples Fan blades, worn, to determine the nature of the wear and damage them. For these reasons, the characterization of these samples was conducted in different microscopic and macroscopic scales. We used non-destructive techniques such as eddy current and penetrant methods. The results obtained allowed us to see the deterioration of fins from one floor to another. These results are directly related to the effects of mechanical, thermal and pressure. It has been, in addition to detecting a different type of damage these fan blades that is the fatigue damage.

Exploring the structure and formation mechanism of amyloid fibrils by Raman spectroscopy: a review

The Analyst ◽  
2015 ◽  
Vol 140 (15) ◽  
pp. 4967-4980 ◽  
Author(s):  
Dmitry Kurouski ◽  
Richard P. Van Duyne ◽  
Igor K. Lednev
Keyword(s):  
Raman Spectroscopy ◽  
Formation Mechanism ◽  
Structural Characterization ◽  
Amyloid Fibrils ◽  
Label Free ◽  
Amyloidogenic Proteins ◽  
Non Destructive

Applications of Raman spectroscopy, a label-free non-destructive technique, for the structural characterization of amyloidogenic proteins, prefibrilar oligomers, and mature fibrils.

scholarly journals Reflectance Measurements on Cultural Heritage

2021 ◽  
Author(s):  
Antonio Alvarez Fernandez-Balbuena ◽  
Daniel Vázquez Moliní ◽  
Ángela Gómez-Manzanares ◽  
Juan Carlos Martínez-Antón ◽  
Santiago Mayorga Pinilla
Keyword(s):  
Cultural Heritage ◽  
Measurement Techniques ◽  
New Technique ◽  
Projection System ◽  
Reflectance Measurement ◽  
Spectrally Selective ◽  
A New Technique ◽  
Non Destructive ◽  
Reflectance Measurements ◽  
Non Destructive Techniques

Cultural heritage is a valuable and characteristic symbol of every country. It should be handled with care and it must be exhaustively investigated and measured with non-destructive techniques. In this chapter, we will talk about different reflectance measurement techniques to obtain the conservation state of the artwork. With this reflectance characterization, conservators, and curators could soon determine the best maintenance procedures for restoration purposes. Also, a new technique for lighting will be discussed, where the artwork can be also photonically restored illuminating with the correct light in the desired area of the artwork using a spectrally selective projection system.

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