کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1562058 999578 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Micro-mechanical modeling of fibrillation in amorphous polymers
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
Micro-mechanical modeling of fibrillation in amorphous polymers
چکیده انگلیسی

Multiple void growth in amorphous polymers and the subsequent deformation of the surrounding matrix material into fibrils is investigated using continuum micro-mechanical models and finite element simulations. The polymer material is described by a constitutive model that particularly accounts for the progressive hardening due to stretching of the molecular network. Two different criteria for local failure are employed in the modeling of void coalescence. Numerical simulations are performed considering periodic and random arrangements of initial voids under tensile loading. Effects of various parameters on the overall response of the damaging material are analyzed.

Void coalescence and fibrillation in amorphous polymers is investigated numerically. A finite strain material model accouting for the molecular network is utilized. Finite element simulation based on micromechanical models are performed. Effects of parameters on the macroscopic response are analyzed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computational Materials Science - Volume 52, Issue 1, February 2012, Pages 118–122
نویسندگان
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