کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
777045 1464133 2010 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dynamic behaviour of dry and water-saturated sand under planar shock conditions
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Dynamic behaviour of dry and water-saturated sand under planar shock conditions
چکیده انگلیسی

Plane shock-wave experiments were performed on dry and partially water-saturated sand, using three water contents, in order to validate predictive models of material behaviour at stress levels between 1 and 10 GPa. Gas and powder guns were used to load the sample under uni-axial strain conditions at low and high stress levels, respectively. Wave motions were detected by piezoelectric pins in the samples and a VISAR (Velocity Interferometer System for Any Reflector) recorded the free-surface velocity on the back target. This study presents both experimental and simulated results. Experimental data are used to determine shock Hugoniot states. Significant differences are observed in the dynamic response of the materials under various water-saturated conditions, and are reproduced with good agreement by numerical simulations using the ARMORS (A Rheological MOdel of Rocks Saturated) model.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Impact Engineering - Volume 37, Issue 1, January 2010, Pages 1–10
نویسندگان
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