Home / Journals / SDHM / Vol.12, No.1, 2018
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  • Open AccessOpen Access

    ARTICLE

    Non-Destructive Testing of Structures Using Optical and Other Methods: A Review

    A. Kroworz1, A. Katunin1,*
    Structural Durability & Health Monitoring, Vol.12, No.1, pp. 1-18, 2018, DOI:10.3970/sdhm.2018.012.001
    Abstract Non-destructive testing (NDT) of structures is one of the most important tasks of the proper maintenance and diagnosis of machines and constructions structural condition. NDT methods contribute to the damage tolerance philosophy used in the aircraft design methodology as well as many other operation and maintenance programs of machinery and constructions. The following study is focusing on overviewing an important group of NDT methods: the optical and other ones, which found broad applicability in scientific and industrial studies nowadays. The paper discusses the selected most widely applicable methods, namely, visual testing, ultrasonic testing, radiographic testing, More >

  • Open AccessOpen Access

    ARTICLE

    Instability Analysis of Strike-Slip Fault Based on Cusp Catastrophe Model

    Zaitie Chen1,*, Wei Wang2, Dayang Li3
    Structural Durability & Health Monitoring, Vol.12, No.1, pp. 19-33, 2018, DOI:10.3970/sdhm.2018.012.019
    Abstract The distribution of many active faults in western China is an important reason for the frequent earthquakes. With the rapid development of the western region, many major projects have been built there and the existence of active faults is bound to have an influence on the safety of the engineering structure. Therefore, it is of great significance to study the mechanism of fault slip instability for evaluating the geological stability of the region and for the site selection of major projects. In this paper, cusp catastrophe theory is used to establish a cusp catastrophe model… More >

  • Open AccessOpen Access

    ARTICLE

    Information Monitoring Technology for Support Structure of Railway Tunnel During Operation

    Licai Zhao1,*, Shishuenn Chen
    Structural Durability & Health Monitoring, Vol.12, No.1, pp. 35-50, 2018, DOI:10.3970/sdhm.2018.012.035
    Abstract In the process of railway construction, because of the inconvenience of geological condition, water bursting and mud surging happen frequently, and the later deformation of support structure on the happening geology section would threaten the normal running of railway. The limit difference of deformation control value of the support structure section where geological accidents frequently happen, is small, and artificial half-automatic supervisory technology cannot get the health condition of tunnel in time, resulting many cars speed-down accidents due to deformation of support structure. Through design innovation, we introduce TGMIS in the later period of Yanzishan… More >

  • Open AccessOpen Access

    ARTICLE

    Durability of Reinforced Concrete Structures under Coupling Action of Load and Chlorine Erosion

    Yang Li1,*, Dongwei Yang1, Jiangkun Zhang1
    Structural Durability & Health Monitoring, Vol.12, No.1, pp. 51-63, 2018, DOI:10.3970/sdhm.2018.012.051
    Abstract Diffusion behavior of chloride ion in reinforced concrete under bending moment was studied by taking the ratio of bending moment to ultimate flexural capacity as load level indicator. The function relationship between load level and chloride ion diffusion coefficient was established, based on that the limit state equation of the chloride ion critical concentration and chloride ion concentration on surface of the steel bar was established. Then by applying Monte-Carlo method the corrosion probability of reinforcement under different load levels in splash zone was calculated. Calculation results demonstrated that compared with the durability reliability index More >

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