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Effects of Constant Amplitude Cyclic Loading on the Nonuniform Deformation of Sandstone Specimens
المؤلفون المشاركون
Yang, Xiao-Bin
Han, Xin-Xing
Wang, Xiao-Yao
Zhang, Zi-Peng
المصدر
العدد
المجلد 2019، العدد 2019 (31 ديسمبر/كانون الأول 2019)، ص ص. 1-12، 12ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2019-04-30
دولة النشر
مصر
عدد الصفحات
12
التخصصات الرئيسية
الملخص EN
In order to explore the mechanical response mechanism of rock materials under cyclic loading, uniaxial constant amplitude cyclic loading tests for sandstone specimens were carried out.
The images of specimen deformation during the tests were captured by charge-coupled device (CCD) cameras.
Based on the digital image correlation method (DICM), the evolution laws of nonuniform deformation and displacements around localization bands during cyclic loading were investigated.
The experimental results show that, during the cyclic loading process, the nonuniform deformation continually escalates with the number of cycles increasing and fluctuates with the cyclic loading stress condition; the nonuniform deformation lags behind the variation of loading stress; and the whole nonuniform deformation experiences a slow evolution stage and a fast evolution stage.
At the loading stage or unloading stage, the nonuniform deformation of rock deteriorates with the number of cycles increasing under the same stress condition.
In each loading cycle, the nonuniform deformation at the unloading stage is more than that at the loading stage under the same stress condition.
The time of dislocation displacements and tension displacements meets hysteresis, compared with the time of stress change.
In addition, the dislocation displacements and tension displacements around localization bands in general increase with the number of cycles increasing.
The displacement evolution around localization bands has the same hysteresis and accumulation laws as that of nonuniform deformation.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Yang, Xiao-Bin& Han, Xin-Xing& Wang, Xiao-Yao& Zhang, Zi-Peng. 2019. Effects of Constant Amplitude Cyclic Loading on the Nonuniform Deformation of Sandstone Specimens. Advances in Civil Engineering،Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1116666
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Yang, Xiao-Bin…[et al.]. Effects of Constant Amplitude Cyclic Loading on the Nonuniform Deformation of Sandstone Specimens. Advances in Civil Engineering No. 2019 (2019), pp.1-12.
https://search.emarefa.net/detail/BIM-1116666
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Yang, Xiao-Bin& Han, Xin-Xing& Wang, Xiao-Yao& Zhang, Zi-Peng. Effects of Constant Amplitude Cyclic Loading on the Nonuniform Deformation of Sandstone Specimens. Advances in Civil Engineering. 2019. Vol. 2019, no. 2019, pp.1-12.
https://search.emarefa.net/detail/BIM-1116666
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1116666
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