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Jie Yu, Dongqi Zhang, Hui Li, Changhui Song, Xin Zhou, Shengnan Shen, Guoqing Zhang, Yongqiang Yang and Hongze Wang
This paper presents a laser ultrasonic testing (LUT) method for the inspection of internal hole defects in a Ti-6Al-4V part produced by additive manufacturing (AM). The LUT system achieved a resolution in sub-millimeter scale, demonstrating its significa...
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Stergios Roumeliotis, Kyriakos Lampropoulos, Ekaterini Delegou, Elisavet Tsilimantou, Vasileios Keramidas, Asterios Bakolas and Antonia Moropoulou
The restoration of historic buildings and structures involves a wide range of scientific and technical fields. The grouting process is among an array of rehabilitation and preservation interventions and aims to homogenize the structure after the implemen...
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Rymantas Jonas Kazys, Liudas Mazeika and Justina Sestoke
Air-coupled ultrasonic guided A0 mode is already used for material characterization. By measuring the phase velocity of the A0 mode the elastic properties, such as the Young?s modulus, can be determined. The objective of this work was the development of ...
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Tarek Omar and Moncef L. Nehdi
One quarter of bridges in Canada and the United States need repair. The present study provides a critical overview of the state-of-the-art existing condition assessment techniques for reinforced concrete bridges, with an emphasis on current practice in N...
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Sattar Dorafshan, Marc Maguire and William Collins
Traditional ultrasonic testing (UT) techniques have been widely used to detect surface and sub-surface defects of welds. UT inspection is a contact method which burdens the manufacturer by storing hot specimens for inspection when the material is cool. A...
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Elena Jasiuniene, Bengisu Yilmaz, Damira Smagulova, Gawher Ahmad Bhat, Vaidotas Cicenas, Egidijus ?ukauskas and Liudas Ma?eika
The aim of this work is to achieve reliable nondestructive evaluation (NDE) of adhesively bonded aerospace components by developing novel multidimensional data fusion techniques, which would combine the information obtained by ultrasonic and X-ray NDE me...
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Rodrigo Osvaldo Ortiz Mansilla,Nicol Alejandra Fuentes Sazo,Andrés Eduardo Jamet Aguilar,Alberto Aníbal Moya Arredondo,Mauricio Andrés González Moya,María Paz Varela Díaz,Aldo Augusto Ramírez Guerra,Erik Baradit Allendes,Patricia Haydée Martínez Ramírez
Pág. 238 - 246
The Clock Tower, a typical expression of the saltpeter period, is located in Arturo Prat Square in Iquique, Chile. The building, completely made of wood, has endured the passing of time without major modifications. There is concern about its conservation...
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Halina Norrison, John Ward
Pág. 3536 - 3541
The earliest study of asphaltic concrete pavement performance indicated that the deterioration process is a non-linear function of distresses that affect the AC fabric. Since AC pavements are non-homogeneous composites which are designed and often constr...
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Yu-Hsi Huang and Chun-Yi Lin
This study provides a non-destructive evaluation to measure orthotropic material constants for additive manufacturing structures. The resonant frequencies obtained from experimental measurements were used to inversely calculate the engineering constants,...
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Yoonjae Chung, Seungju Lee, Ranjit Shrestha and Wontae Kim
Recently, thermographic testing has been applied as a non-destructive evaluation technology for composite materials due to its remarkable advantages, such as its non-contact, non-destructive, and high-speed properties, it is harmless to the human body an...
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Maria Kosarli, Georgios Foteinidis, Kyriaki Tsirka, Nerea Markaide, Alaitz Ruiz de Luzuriaga, Diego Calderón Zapatería, Stefan Weidmann and Alkiviadis S. Paipetis
In this study, the mechanical properties of purposefully synthesized vitrimer repairable epoxy composites were investigated and compared to conventional, commercial systems. The purpose was to assess the knockdown effect, or the relative property deterio...
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Xin Qiao, Yoshikazu Kobayashi, Kenichi Oda and Katsuya Nakamura
This study developed a novel acoustic emission (AE) tomography algorithm for non-destructive testing (NDT) based on Lasso regression (LASSO). The conventional AE tomography method takes considerable measurement data to obtain the elastic velocity distrib...
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Qiang Fang, Clemente Ibarra-Castanedo and Xavier Maldague
In quality evaluation (QE) of the industrial production field, infrared thermography (IRT) is one of the most crucial techniques used for evaluating composite materials due to the properties of low cost, fast inspection of large surfaces, and safety. The...
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Sang-jin Oh, Min-jae Jung, Chaeog Lim and Sung-chul Shin
In the shipbuilding industry, the non-destructive testing for welding quality inspection is mainly used for the permanent storage of the testing results and the radio-graphic testing which can visually inspect the interior of the welded part. Experts are...
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Gunawan Budi Wijaya,Narciso Pacuribot
Pág. 111 - 120
A comprehensive assessment was conducted to an old reinforced concrete bridge in Brunei Darussalam. This bridge is about 30-40 years old, and has already shown signs of concrete distresses. The main concern was the integrity of the columns, beams and dec...
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Eberechi Ichi, Faezeh Jafari and Sattar Dorafshan
Annotated datasets play a significant role in developing advanced Artificial Intelligence (AI) models that can detect bridge structure defects autonomously. Most defect datasets contain visual images of surface defects; however, subsurface defect data su...
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Yusak Oktavianus, Massoud Sofi, Elisa Lumantarna, Gideon Kusuma and Colin Duffield
A precast reinforced concrete (RC) T-beam located in seaport Terminal Peti Kemas (TPS) Surabaya built in 1984 is used as a case study to test the accuracy of non-destructive test techniques against more traditional bridge evaluation tools. This bridge is...
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Costas P. Providakis, Maria G. Mousteraki and Georgia C. Providaki
Without affecting the integrity or stability of the heritage monuments, vibration-based techniques provide useful solutions for acquiring global information about them. By studying the dynamic response to suitable excitation sources, it is feasible to de...
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Na Luo, Yunlong Li, Baohua Yang, Biyun Liu and Qianying Dai
The content of tea polyphenols (TP) is one of the important indicators for judging the quality of tea. Accurate and non-destructive estimation technology for tea polyphenol content has attracted more and more attention, which has become a key technology ...
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