Nondestructive Testing and Evaluation

Topic Information

Dear Colleagues,

Nondestructive testing and evaluation (NDT&E) is one of the most important and widely used techniques for determining the quality and safety of materials, components, devices, and structures. The NDT&E technologies include ultrasonic (UT), magnetic particle (MT), magnetic flux leakage (MFLT), eddy current (ECT), radiation (RT), penetrant (PT) and visual testing (VT), along other testing techniques used for industrial applications. This Topic focuses on the recent advancements in NDT applications used to support economics, people’s quality of life and sustainability in civil engineering.

This Topic invites authors to submit high-quality research articles that cover the different topics of NDT&E progress. The subjects that will be discussed focus not only on the newest methods, technologies and applications, but also on the progressive results of future work.

Dr. Youngseok Lee
Prof. Dr. Ho Kyung Kim
Topic Editors

Keywords

Participating Journals

Journal Name	Impact Factor	CiteScore	Launched Year	First Decision (median)	APC
Journal of Imaging jimaging	2.7	5.9	2015	20.9 Days	CHF 1800	Submit
Journal of Nuclear Engineering jne	-	-	2020	34.3 Days	CHF 1000	Submit
NDT ndt	-	-	2023	15.0 days *	CHF 1000	Submit
Radiation radiation	-	-	2021	24.1 Days	CHF 1000	Submit

* Median value for all MDPI journals in the first half of 2024.

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Published Papers (3 papers)

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All J. Imaging JNE NDT Radiation

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6 pages, 885 KiB  

Open AccessCommunication

The INFN-LNF Astrophysics and Cosmology Integrated Test Facility Startup

by Luca Porcelli, Sultan Dabagov, Giovanni Delle Monache, Dariush Hampai, Giuseppina Modestino and Sandra Savaglio

NDT 2024, 2(3), 249-254; https://doi.org/10.3390/ndt2030015 - 12 Jul 2024

Viewed by 426

Abstract

Starting from January 2023, Permanent Staff Personnel and Associated Personnel of INFN-LNF (Istituto Nazionale di Fisica Nucleare—Laboratori Nazionali di Frascati) have founded, and are setting up, the local Astrophysics and Cosmology Team (ACT). The INFN-LNF ACT joined the initial development phases of one [...] Read more.

Starting from January 2023, Permanent Staff Personnel and Associated Personnel of INFN-LNF (Istituto Nazionale di Fisica Nucleare—Laboratori Nazionali di Frascati) have founded, and are setting up, the local Astrophysics and Cosmology Team (ACT). The INFN-LNF ACT joined the initial development phases of one of the forthcoming (early 2030) next-generation cosmology space-borne probes, with particular emphasis on (1) thermal balance tests (and correlation to models) of the electronics of interest; (2) (non)destructive irradiation tests of the electronics of interest and X-ray circuitry diagnostics on a specifically dedicated and instrumented optical bench; and (3) joining the simulation-related, and data analysis-related, activities, at both the cosmological and instrumental levels. The INFN-LNF ACT has constituted an Integrated Test Facility (ITF), which is being instrumented in a dedicated space and will also make use of the pre-existing INFN-LNF infrastructures. In the following, as a first contribution, mainly related to what was completed in late 2023 and early 2024, the activities of the commissioning and setup of the so-called ‘pocket’ cryostat are described, linking them to the envisaged thermal balance tests (and correlation to the models) of the electronics of interest. While mainly devoted to cosmology-oriented tasks, the INFN-LNF ACT ‘pocket’ cryostat will, in principle, be available to the wider community for other dedicated activities. Full article

(This article belongs to the Topic Nondestructive Testing and Evaluation)

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14 pages, 6607 KiB  

Open AccessArticle

Evaluation of Coconut Fiber in Corroded Reinforced Self-Healing Concrete Using NDT Methods

by Ahmad Zaki, Nabilah Cantika Aprilia, Sri Atmaja P. Rosyidi and Khairil Mahbubi

NDT 2024, 2(3), 214-227; https://doi.org/10.3390/ndt2030013 - 11 Jul 2024

Viewed by 570

Abstract

The incorporation of natural fibers into concrete has recently emerged as a popular approach in the field of construction materials due to its sustainability and environmental friendliness. In comparison to artificial fibers, natural fibers are more cost-effective and widely available globally. Among the [...] Read more.

The incorporation of natural fibers into concrete has recently emerged as a popular approach in the field of construction materials due to its sustainability and environmental friendliness. In comparison to artificial fibers, natural fibers are more cost-effective and widely available globally. Among the various natural fibers, coconut fiber (CF) stands out for its unique set of advantages. This study aims to investigate the mechanical properties and durability of coconut-fiber-reinforced self-healing concrete (CFR-SHC) in the context of corrosion resistance. Additionally, Bacillus subtilis bacteria (10% by mass) was incorporated into the CFR-SHC. The impact of ±50 mm long CF with varying contents of 0.25%, 0.5%, and 0.75% by mass was examined. Specimens were subjected to corrosion acceleration for 48, 96, and 168 h. Non-destructive testing (NDT) methods of Electrical Resistivity (ER) and Impact Echo (IE) were conducted to test the corrosion resistance. The experimental results demonstrate that CFR-SHC increased the compressive strength by 6% and the flexural strength by 40%. CFR-SHC also exhibits excellent resistance to corrosion, characterized by low inrush current, high ER value, and high IE frequency. The most favorable overall outcomes were observed for the CFR-SHC sample containing 0.5% of the cement mass. Full article

(This article belongs to the Topic Nondestructive Testing and Evaluation)

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14 pages, 3967 KiB  

Open AccessArticle

Repeatability and Reproducibility of Pavement Density Profiling Systems

by Fabricio Leiva-Villacorta and Adriana Vargas-Nordcbeck

NDT 2024, 2(3), 190-203; https://doi.org/10.3390/ndt2030011 - 22 Jun 2024

Viewed by 468

Abstract

The work conducted in this study was designed to establish achievable testing tolerances for non-destructive pavement density measurements using Density Profiling Systems (DPSs). Nine and six sensors were used to determine the precision of repeatability and reproducibility in the laboratory and the field, [...] Read more.

The work conducted in this study was designed to establish achievable testing tolerances for non-destructive pavement density measurements using Density Profiling Systems (DPSs). Nine and six sensors were used to determine the precision of repeatability and reproducibility in the laboratory and the field, respectively. A minimum of six sensors (considered in this study as independent laboratories) were needed to comply with the minimum number of participants required in the current ASTM standard practice (ASTM E691). The methodology included the development of laboratory precision evaluation with a total of nine sensors and two different mixtures (9.5 mm fine-graded mix, 19.0 mm coarse-graded mix) compacted at four density levels (97%, 94%, 91%, and 88% of G_mm). For the field portion of this study, pavement sections built at the National Center for Asphalt Technology (NCAT) Test Track in 2021 served as experimental variables. These sections were built with fine-graded asphalt mixtures and open-graded mixes as wearing courses. Additionally, the pavement sections included three underlying materials: new asphalt (binder layer), milled asphalt surface, and granular base, with thicknesses ranging from 3.8 to 13.9 cm. Density profile testing was conducted at two locations: within the mat (center of the lane) and along the joint. Computed precision statements regarding dielectric values within and between laboratories were about double for field results compared to laboratory results. However, when converted to density, the statements were significantly below the reported statements for Bulk Specific Gravity and Vacuum Sealing in the laboratory and Nuclear and Electromagnetic density gauges in the field. Full article

(This article belongs to the Topic Nondestructive Testing and Evaluation)

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