کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
800274 1467460 2015 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Material-point erosion simulation of dynamic fragmentation of metals
ترجمه فارسی عنوان
شبیه سازی نقطه فیزیکی نقطه تخریب پویایی فلزات
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
چکیده انگلیسی

We present a validation assessment of the eigenerosion scheme applied in conjunction with the Optimal Transportation Meshfree (OTM) method. The assessment is based on the detonation-driven 304L steel spherical-cap fragmentation experiments of Campbell et al. (2007). Metrics used for purposes of validation include the velocity history of a witness point of the shell and the histogram of recovered fragment sizes. The results of the simulations are found to be in overall good agreement with the experimental measurements, especially when allowances are made for uncertainties in the characterization of the drive and material properties. The ability of the approach to predictively simulate exceedingly complex patterns of fracture and fragmentation under severe conditions of loading and material behavior is remarkable, especially in consideration of the simplicity of the fracture model and its implementation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mechanics of Materials - Volume 80, Part B, January 2015, Pages 288–297
نویسندگان
, , ,