کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6747721 | 1429514 | 2018 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mesomechanics coal experiment and an elastic-brittle damage model based on texture features
ترجمه فارسی عنوان
آزمایش زیستومومیکیک و مدل خسارت کشنده الاستیکی بر اساس ویژگی های بافتی
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کلمات کلیدی
آزمایش مزومکنیک، پردازش تصویر، ویژگی بافت، متغیر آسیب مدل آسیب دیدگی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی اقتصادی
چکیده انگلیسی
To accurately describe damage within coal, digital image processing technology was used to determine texture parameters and obtain quantitative information related to coal meso-cracks. The relationship between damage and mesoscopic information for coal under compression was then analysed. The shape and distribution of damage were comprehensively considered in a defined damage variable, which was based on the texture characteristic. An elastic-brittle damage model based on the mesostructure information of coal was established. As a result, the damage model can appropriately and reliably replicate the processes of initiation, expansion, cut-through and eventual destruction of microscopic damage to coal under compression. After comparison, it was proved that the predicted overall stress-strain response of the model was comparable to the experimental result.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Mining Science and Technology - Volume 28, Issue 4, July 2018, Pages 639-647
Journal: International Journal of Mining Science and Technology - Volume 28, Issue 4, July 2018, Pages 639-647
نویسندگان
Sun Chuanmeng, Cao Shugang, Li Yong,