کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4572703 1332194 2006 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Tensile test of natural microbiotic crust
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
Tensile test of natural microbiotic crust
چکیده انگلیسی

The mechanical properties of microbiotic crust are important to stabilize sandy surfaces in arid and semi-arid regions. We developed a new experimental approach to perform the tensile test of natural microbiotic crust. The modulus of elasticity, ultimate stress and one-dimensional stress–strain relation was obtained. The microbiotic crust we measured exhibits linear elastic behavior firstly and then breaks. This mechanical character was applied to the study of the rupture of microbiotic crust under the impact of one saltating grain. A very simple dimensionless variable was suggested to quantitatively assess surface stability.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: CATENA - Volume 67, Issue 2, 15 October 2006, Pages 139–143
نویسندگان
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