کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
779297 1464076 2015 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A non-linear orthotropic hydrocode model for ultra-high molecular weight polyethylene in impact simulations
ترجمه فارسی عنوان
یک مدل هیدروکودر غیر خطی ارتوتروپیک برای پلی اتیلن با وزن مولکولی فوق العاده بالا در شبیه سازی تاثیر
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
چکیده انگلیسی


• Test methods for a full experimental characterization of a UHMWPE composite.
• Quasi-static and dynamic testing of a UHMWPE composite.
• Hypervelocity impact experiments on a UHMWPE composite.
• Predictive modeling of a UHMWPE under ballistic impact.
• Non-linear material model including elasticity, plasticity, failure and softening.

This paper presents detailed experimental characterization of quasi-static anisotropic directional strength properties as well as the shock behavior of ultra-high molecular weight polyethylene (UHMWPE) for the development of an advanced material model for this class of materials. Specifically, we consider Dyneema® HB26 – pressed from uni-directional (UD) tapes in a 0/90° stacking sequence. A material model based on a constitutive law with orthotropic, non-linear strength, shock response, composite failure and softening criteria is presented. A set of material parameters is derived for applications in hydrocodes (here: ANSYS AUTODYN). High- and hypervelocity impact tests with different impact velocities are used for preliminary validation and discussion of the predictive capabilities in view of future application.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Impact Engineering - Volume 75, January 2015, Pages 110–122
نویسندگان
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