Results 11 to 20 of about 7,126 (264)
Sensors, 2023 This paper presents a method for measuring surface cracks based on the analysis of Rayleigh waves in the frequency domain. The Rayleigh waves were detected by a Rayleigh wave receiver array made of a piezoelectric polyvinylidene fluoride (PVDF) film and ...
Xiaotian Li +8 more
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Mechanical Analysis of Preventing Reflection Cracks Based on Stress Absorbing Layer
Advances in Civil Engineering, 2022 After asphalt concrete overlay, the reflection crack in the old pavement remains a great challenge. In order to overcome this problem, here, we report the effect of stress absorbing layer on the reflection crack.
Lingjie Han +3 more
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Reflections in a cracked mirror [PDF]
British Journal of General Practice, 2009 How I hate the modern obsession with reflection. After every talk and lecture, at almost every trainers and appraisers meeting for the last few years and in everything associated with the medical learning industry, I am encouraged to reflect. To reflect on what I have learned and to shine that secondhand light on how my new knowledge will change the ...
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The Reflective Cracking in Flexible Pavements [PDF]
Romanian Journal of Transport Infrastructure, 2013 Abstract Reflective cracking is a major concern for engineers facing the problem of road maintenance and rehabilitation. The problem appears due to the presence of cracks in the old pavement layers that propagate into the pavement overlay layer when traffic load passes over the cracks and due to the temperature variation.
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The Temperature Effect on the Reflective Cracking of Asphalt Overlays [PDF]
Road Materials and Pavement Design, 2008 This paper presents a study about the influence of temperature on the reflective cracking in a flexible road pavement through the evaluation of the asphalt overlay damage associated to traffic and temperature variations throughout a year. This study was developed from a numerical simulation of the asphalt overlay behaviour based on a three-dimensional ...
Minhoto, Manuel +2 more
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Sensors, 2016 This paper presents a novel framework for probabilistic crack size quantification using fiber Bragg grating (FBG) sensors. The key idea is to use a high-order extended finite element method (XFEM) together with a transfer (T)-matrix method to analyze the
Jingjing He +4 more
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A Numerical Study on the Crack Propagation of Homogenized Micro-Crack Crushing for Concrete Pavement
Applied Sciences, 2022 Homogenized micro-crack crushing is a new method of concrete pavement rehabilitation that makes full use of the bearing capacity of the original concrete pavement, whereby the treated pavement can be directly overlaid with hot mixed asphalt concrete.
Wenjie Li +3 more
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Double-Probe Ultrasonic Detection Method for Cracks in Steel Structure
Applied Sciences, 2020 To investigate the feasibility analysis of ultrasonic detection methods applied in the fatigue crack characteristics of steel structures, the double-probe ultrasonic detection method was applied to the prefabricated crack specimens fabricated from of ...
Xin Chen +4 more
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Multiple Reflective Cracks in Semirigid Base Asphalt Pavement under Traffic Load Using XFEM
Advances in Civil Engineering, 2022 This paper built a three-dimensional layered structure model of semirigid base asphalt pavement with single and double transverse reflective cracks based on the Extended Finite Element Method and fatigue fracture theory.
Lei Guo +3 more
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Accelerated Laboratory Testing for Reflective Cracking [PDF]
Romanian Journal of Transport Infrastructure, 2021 Abstract One of the most used methods of rehabilitation of road structures is the laying of a protective asphalt layer over a degraded concrete. The main problem of this solution is the reflective cracking, more precisely the transmission of the existing cracks in the lower layer in the asphalt pavement.
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