A numerical study for geomaterials shear strength components using discrete element models
المؤلفون المشاركون
al-Salih, Mustafa
Hofstetter, Keven
المصدر
Jordan Journal of Civil Engineering
العدد
المجلد 4، العدد 3 (30 سبتمبر/أيلول 2010)، ص ص. 183-196، 14ص.
الناشر
جامعة العلوم و التكنولوجيا الأردنية عمادة البحث العلمي
تاريخ النشر
2010-09-30
دولة النشر
الأردن
عدد الصفحات
14
التخصصات الرئيسية
الموضوعات
الملخص EN
Geomaterials (ranging from clay to gravel) are usually composed of individual particles that have specific engineering properties.
Those particles once packed to a certain density, exhibit a distinguished macro mechanical behavior, which is a result of their micromechanical interactions at the contact levels.
Soil masses are usually subjected to direct normal and indirect shear stresses ; yet, they normally show shear type of failure as indicated by many researchers using experimental and numerical evidences.
The shear strength concept of friction and cohesion is discussed in this paper.
A Discrete Element Code (developed and owned by Caterpillar, Inc.) was used in this study to show that it is possible to drop the apparent cohesion portion and compensate for that with additional frictional resistance.
Apparent cohesive bonds usually fail before mobilizing the fictional resistance and, therefore, we may not account on it to resist future stresses.
The numerical simulations results for triaxial tests and excavation operations showed consistency regarding the proposed shear strength components.
Triaxial simulations for fine-grained materials showed that it is possible for a numerical model to capture the stress–strain behavior if the cohesion component is dropped and, instead, additional frictional component is added to account for the dilation that many classical soil mechanics laws usually ignore.
Likewise, excavation operations showed similar results using the same proposed theory.
Some important observations regarding the apparent cohesion concept are discussed and shown in this paper.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
al-Salih, Mustafa& Hofstetter, Keven. 2010. A numerical study for geomaterials shear strength components using discrete element models. Jordan Journal of Civil Engineering،Vol. 4, no. 3, pp.183-196.
https://search.emarefa.net/detail/BIM-284384
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
al-Salih, Mustafa& Hofstetter, Keven. A numerical study for geomaterials shear strength components using discrete element models. Jordan Journal of Civil Engineering Vol. 4, no. 3 (2010), pp.183-196.
https://search.emarefa.net/detail/BIM-284384
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
al-Salih, Mustafa& Hofstetter, Keven. A numerical study for geomaterials shear strength components using discrete element models. Jordan Journal of Civil Engineering. 2010. Vol. 4, no. 3, pp.183-196.
https://search.emarefa.net/detail/BIM-284384
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references : p. 196
رقم السجل
BIM-284384
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