کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
977782 933207 2013 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Impact fragmentation of polyurethane and polypropylene cylinder
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات فیزیک ریاضی
پیش نمایش صفحه اول مقاله
Impact fragmentation of polyurethane and polypropylene cylinder
چکیده انگلیسی


• The fragment mass distribution of a polymer cylinder depends on the projectile velocity.
• The fragment mass distribution of a polymer cylinder depends on type of the polymer material.
• For polyurethane, the fragments mass from a lower-velocity impact distributes in the lognormal form.

The impact fragmentation of a bulk polyurethane elastomer (PU) and polypropylene (PP) cylinder have been investigated using a Cu plate projectile launched by a propellant gun at a velocity of 0.53–1.4 km/s. A projectile drills into a PU sample and forms a cavity in the sample. A small number of tiny fragments are formed. When the projectile smashes in at 1.4 km/s, the PU cylinder bursts and PU fragments form. On the other hand, a brittle fracture occurs on the PP cylinder. The mass of fragments from the PU sample generated at a lower impact velocity is distributed in the lognormal form, whereas the mass of fragments from the PU sample generated by a 1.4 km/s impact follows a power-law distribution. The fragment mass distribution of the PP sample generated at a lower impact velocity obeys the power-law form, whereas that generated at a higher impact velocity follows the lognormal form.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica A: Statistical Mechanics and its Applications - Volume 392, Issue 22, 15 November 2013, Pages 5574–5580
نویسندگان
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