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Kien Dinh, Khiem Tran, Nenad Gucunski, Christopher C. Ferraro and Tu Nguyen
Since 1987 when dry-point-contact (DPC) transducers were invented in the USSR, ultrasonic shear wave devices based on those transducers have been commercialized and have become one of the most effective technologies for imaging concrete. That said, the o...
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Konstantinos Gkyrtis, Christina Plati and Andreas Loizos
Modern roadways provide road users with a comfortable and safe ride to their destinations. Due to increasing traffic demands and maximum allowable loads, road authorities should also pay attention to the structural soundness of road pavements while seeki...
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Geonwoo Kim, Hoonsoo Lee, Seung Hwan Wi and Byoung-Kwan Cho
Heat stress in particular can damage physiological processes, adaptation, cellular homeostasis, and yield of higher plants. Early detection of heat stress in leafy crops is critical for preventing extensive loss of crop productivity for global food secur...
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Konstantinos Gkyrtis, Angeliki Armeni, Christina Plati and Andreas Loizos
Maintenance interventions and rehabilitation actions in airfield pavements are time-consuming and adversely affect pavements? serviceability (i.e., airport closures), with a profound impact on the airport economics. Once a pavement is constructed, a robu...
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Hoyoung Kim and Vijay Harid
ELF/VLF magnetic fields is a promising tool for nondestructive testing of various conductive objects within shielded structures.
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Sang-Gyu Lee, Daekyun Oh and Jong Hun Woo
Ship structures made of glass fiber-reinforced polymer (GFRP) composite laminates are considerably thicker than aircraft and automobile structures and more likely to contain voids. The production characteristics of such composite laminates were investiga...
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Rebecca A. Atadero, Gaofeng Jia, Abdelrahman Abdallah and Mehmet E. Ozbek
The limitations of the standard two-year interval for the visual inspection of bridges required by the U.S. National Bridge Inspection Standards have been well documented, and alternative approaches to bridge inspection planning have been presented in re...
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Vimalathithan Paramsamy Kannan and Claudia Barile
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Pengfei Wang, Weiqiang Wang, Sanlong Zheng, Bingbing Chen and Zengliang Gao
Nonlinear ultrasonic testing is highly sensitive to micro-defects and can be used to detect hidden damage and defects inside materials. At present, most tests are carried out on specimens, and there are few nonlinear ultrasonic tests for fatigue damage o...
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Ruifeng Liang, Gangarao Hota, Ying Lei, Yanhao Li, Daniel Stanislawski and Yongqiang Jiang
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Ricardo Faustino Teles,Cláudio Henrique Soares Del Menezzi,Frederico de Souza,Mário Rabelo de Souza
Pág. DOI: 10.12 - 6830.v02n0
The paper aimed at evaluating the interrelationship between three nondestructive methods to predict the stiffness of a tropical hardwood (Sextonia rubra). Lumber material from Sextonia rubra was collected, ripped and planned and boards were then nondestr...
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Rui Li, Dongdong Ye, Qiukun Zhang, Jianfei Xu and Jiabao Pan
Thermal barrier coatings (TBCs) play a crucial role in safeguarding aero-engine blades from high-temperature environments and enhancing their performance and durability. Accurate evaluation of TBCs? porosity is of paramount importance for aerospace mater...
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Marco Bonopera
Stress state evaluation in axially loaded structural members is significant for sustaining and preserving the service life of buildings. While successful monitoring furnishes staunch information on the health, integrity, safety and serviceability of stru...
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Kamil Stelmaszczyk, Ewelina Karpierz-Marczewska, Valeri Mikhnev, Grzegorz Cywinski, Thomas Skotnicki and Wojciech Knap
Fast (picoseconds scale) and sensitive (ppm-level) detection of impurities in gasoline employing terahertz time-domain spectroscopy systems (THz-TDS) for petrochem-ical production lines or quality assessment and control facilities.
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Kanji Ono
Ultrasonic attenuation coefficients of ceramic and inorganic materials were determined for the longitudinal and transverse wave modes. Sample materials included hard and soft ceramics, common ceramics, ceramic-matrix composites, mortars, silicate glasses...
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Abdelrahman M. Abdallah, Rebecca A. Atadero and Mehmet E. Ozbek
Bridge inspection standards in the United States require routine visual inspections to be conducted on most bridges at a maximum interval of two years regardless of the bridge condition. Limitations of this uniform calendar-based approach have been repor...
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Gábor Vértesy, Antal Gasparics, Ildikó Szenthe and Inge Uytdenhouwen
In this paper, the application of a nondestructive magnetic testing method is analyzed for neutron irradiation-generated embrittlement of nuclear pressure vessel materials. It was found that in spite of the big scatter of measurement points, the degradat...
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Yuanxun Zheng, Shaoqiang Wang, Peng Zhang, Tongxin Xu and Jingbo Zhuo
The development and application of nondestructive testing technology for prestressed reinforced concrete structures in the field of infrastructure construction were summarized in this study via the analysis of relevant literature worldwide. The detection...
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Nan-Yu Cheng, Chien-Chih Chen, Bo-Jian Liang and Sheng-Hao Tseng
DRS techniques might be practical tools for grading fruits or for monitoring fruit changes during long-term storage.
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Divino Eterno Teixeira
Modulus of elasticity (MOE) of Douglas-fir (Pseudotsuga menziesii) lumber loaded in parallel to grain tension was evaluated by nondestructive techniques (transverse vibration and longitudinal stress wave) and the results were correlated to the actual pro...
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