Crack Initiation Behaviors of Granite Specimens Containing Crossing-Double-Flaws with Different Lengths under Uniaxial Loading
المؤلفون المشاركون
Yin, Dawei
Xia, Zhiguo
Jiang, Ning
Pan, Haiyang
المصدر
العدد
المجلد 2020، العدد 2020 (31 ديسمبر/كانون الأول 2020)، ص ص. 1-13، 13ص.
الناشر
Hindawi Publishing Corporation
تاريخ النشر
2020-08-24
دولة النشر
مصر
عدد الصفحات
13
التخصصات الرئيسية
الملخص EN
Crack initiation is an important stage in the failure process of rock masses.
In this paper, crack initiation behaviors (crack initiation model, crack initiation location, crack initiation angle, and crack initiation stress) of granite specimens containing crossing-double-flaws with different lengths were investigated using PFC2D software.
Crack initiation models were all tensile wing cracks, which did not exactly initiate from the main flaw with a length of 30 mm.
They can initiate from the secondary flaw with a length 20 mm at α of 30° (included angle between main flaw and horizontal direction) and β of 90° (included angle between main and secondary flaws) and from main and secondary flaws at α of 30° and β of 60°.
These were mainly induced by the superposition of stress fields around the main and secondary flaws as β varied from 0° to 90°, especially the tensile force concentration zones superposition.
The tensile forces concentration zone around flaw shrank towards flaw tips with the increase of flaw’s inclinations measured horizontally.
Under stress field superposition effects, the crack initiation stress decreased firstly and then increased with β at α of 30° and 45°.
Crack initiation locations were close to flaw tips but not restricted to them.
The distances between crack initiation locations and flaw tips, and the crack initiation angles depended on the flaw where first macrocracks initiated from.
Microdisplacement field distributions of granite specimens to reveal the mesomechanism of crack initiation behaviors were discussed.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Pan, Haiyang& Yin, Dawei& Jiang, Ning& Xia, Zhiguo. 2020. Crack Initiation Behaviors of Granite Specimens Containing Crossing-Double-Flaws with Different Lengths under Uniaxial Loading. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1124764
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Pan, Haiyang…[et al.]. Crack Initiation Behaviors of Granite Specimens Containing Crossing-Double-Flaws with Different Lengths under Uniaxial Loading. Advances in Civil Engineering No. 2020 (2020), pp.1-13.
https://search.emarefa.net/detail/BIM-1124764
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Pan, Haiyang& Yin, Dawei& Jiang, Ning& Xia, Zhiguo. Crack Initiation Behaviors of Granite Specimens Containing Crossing-Double-Flaws with Different Lengths under Uniaxial Loading. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-13.
https://search.emarefa.net/detail/BIM-1124764
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references
رقم السجل
BIM-1124764
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر