Automatic Crack Measurement System PDF Download

Author: Donald C. Winters
Publisher:
ISBN:
Category :
Languages : en
Pages : 42

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Author: G. W. Revill
Publisher:
ISBN: 9780642115515
Category : Materials
Languages : en
Pages : 9

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Book Description
This report describes the development of a computer controlled direct-current potential-difference crack measuring system and its application to obtain crack growth rate data from centre-cracked-tension specimens. Details of the hardware and the software are included and the method and results fo the calibration for this type of specimen are given. Keywords: Direct current; Crack measurement; Computer applications; Crack propagation; Electric potential. (Australia).

Author: W. H. Cullen
Publisher: ASTM International
ISBN: 9780803104211
Category : Technology & Engineering
Languages : en
Pages : 316

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Author: A. Scarpas
Publisher: Springer Science & Business Media
ISBN: 9400745664
Category : Technology & Engineering
Languages : en
Pages : 1340

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Book Description
In the recent past, new materials, laboratory and in-situ testing methods and construction techniques have been introduced. In addition, modern computational techniques such as the finite element method enable the utilization of sophisticated constitutive models for realistic model-based predictions of the response of pavements. The 7th RILEM International Conference on Cracking of Pavements provided an international forum for the exchange of ideas, information and knowledge amongst experts involved in computational analysis, material production, experimental characterization, design and construction of pavements. All submitted contributions were subjected to an exhaustive refereed peer review procedure by the Scientific Committee, the Editors and a large group of international experts in the topic. On the basis of their recommendations, 129 contributions which best suited the goals and the objectives of the Conference were chosen for presentation and inclusion in the Proceedings. The strong message that emanates from the accepted contributions is that, by accounting for the idiosyncrasies of the response of pavement engineering materials, modern sophisticated constitutive models in combination with new experimental material characterization and construction techniques provide a powerful arsenal for understanding and designing against the mechanisms and the processes causing cracking and pavement response deterioration. As such they enable the adoption of truly "mechanistic" design methodologies. The papers represent the following topics: Laboratory evaluation of asphalt concrete cracking potential; Pavement cracking detection; Field investigation of pavement cracking; Pavement cracking modeling response, crack analysis and damage prediction; Performance of concrete pavements and white toppings; Fatigue cracking and damage characterization of asphalt concrete; Evaluation of the effectiveness of asphalt concrete modification; Crack growth parameters and mechanisms; Evaluation, quantification and modeling of asphalt healing properties; Reinforcement and interlayer systems for crack mitigation; Thermal and low temperature cracking of pavements; and Cracking propensity of WMA and recycled asphalts.

Author: Hosin Lee
Publisher:
ISBN:
Category : Image processing
Languages : en
Pages : 26

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Book Description
The objective of this research was to (1) develop a manual image analysis system (MIAS), (2) verify outputs provided by a consultant, and (3) develop an automated image analysis system (AIAS).

Author: Kenneth H. McGhee
Publisher: Transportation Research Board
ISBN: 0309070120
Category : Automatic data collection systems
Languages : en
Pages : 94

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At head of title: National Cooperative Highway Research Program.

Author:
Publisher:
ISBN:
Category : Pavements
Languages : en
Pages : 93

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Book Description
Currently adopted manual distress surveys involve a high degree of subjectivity, low production rates, and exposure to hazardous conditions. FDOT has acquired and validated a multi-functional survey vehicle (MPSV). However, when an automated crack distress survey operation is complete, FDOT must also use a reliable, accurate and speedy mechanism to analyze the distress information obtained from the survey. A number of automated and interactive crack measurement systems are available to assist pavement engineers to objectively evaluate pavement cracking from digital images of the pavement survey. Based on the findings of this research project the investigators found two such software packages which have the ability to function in conjunction with the imaging and inertial sub-systems of FDOT's MPSV and procedure repeatable and speedy distress evaluations. Of the two software that were studied in detail, namely, the Crackscope Program and the Workstation Program, the latter is more compatible with the MPSV.

Author: United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1080

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Author: Teik-Hua Law
Publisher: CRC Press
ISBN: 100075054X
Category : Technology & Engineering
Languages : en
Pages : 937

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Book Description
This book contains selected papers resulting from the 2020 International Conference on Road and Traffic Engineering (CRTE 2020) covering Road Engineering and Traffic Engineering, aiming to provide an academic and technical communication platform for scholars and engineers engaged in scientific research and engineering practice in the field of Road Engineering and Materials, Traffic Engineering and Management and Transportation Engineering. By sharing the research status of scientific research achievements and cutting-edge technologies, it helps scholars and engineers all over the world to comprehend the academic development trends and broaden research ideas. So as to strengthen international academic research, academic topics exchange and discussion, and promote the industrialization cooperation of academic achievements.

Author: Magdalena Rucka
Publisher: MDPI
ISBN: 3039439650
Category : Technology & Engineering
Languages : en
Pages : 440

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Book Description
The Special Issue “Non-Destructive Testing of Structures” has been proposed to present the recent developments in the field of the diagnostics of structural materials and components in civil and mechanical engineering. The papers highlighted in this editorial concern various aspects of non-invasive diagnostics, including such topics as the condition assessments of civil and mechanical structures and the connections of structural elements, the inspection of cultural heritage monuments, the testing of structural materials, structural health monitoring systems, the integration of non-destructive testing methods, advanced signal processing for the non-destructive testing of structures (NDT), damage detection and damage imaging, as well as modeling and numerical analyses for supporting structural health monitoring (SHM) systems.