Experimental study on the tension and puncture behavior of spray polyurea at high strain rates
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چکیده
منابع مشابه
Influence of High Strain Rates on the Mechanical Behavior of High-Manganese Steels
In this work, dynamic mechanical properties of three high-manganese steels with TRIP/TWIP or fully TWIP characteristics are studied. High strain rate experiments in the range of true strain rates between ~500 and 1800 /s are conducted using a dynamic torsional testing setup. All the three steels show a positive strain rate sensitivity in the intermediate range of strain rates (up to 500 /s). Bu...
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چکیده هدف از پژوهش حاضر بررسی رابطه کیفیت زندگی کاری و رفتار شهروندی سازمانی در مدارس مقطع متوسطه پسرانه شهر تهران از دیدگاه دبیران بود. روش پژوهش حاضر توصیفی و از نوع همبستگی بود. از بین دبیران مدارس شهر تهران تعداد 380 نفر به روش نمونه گیری خوشه ای چند مرحله ای به عنوان نمونه پژوهش انتخاب شدند و با تکمیل پرسشنامه ی کیفیت زندگی کاری والتون(1975) و پرسشنامه ی رفتار شهروندی سازمانی پودساکو...
15 صفحه اولExperimentation and Modeling of the Tension Behavior of Polycarbonate at High Strain Rates
Yingjie Xu 1,*, Tenglong Gao 1, Jun Wang 2 and Weihong Zhang 1,* 1 Engineering Simulation and Aerospace Computing (ESAC), Northwestern Polytechnical University, Xi’an 710072, China; [email protected] 2 Mechanics Unit (UME), ENSTA-ParisTech, Paris, 91761 Palaiseau, France; [email protected] * Correspondence: [email protected] (Y.X.); [email protected] (W.Z.); Tel.: +86-29-8...
متن کاملExperimental methods at high rates of strain
The subject area covered by this review is a large and important one and to do it full justice would require a larger format than is available here. However, an attempt is made to outline the history of some of the more important developments and to include most major techniques. Taylor impact, Hopkinson bar testing in its various forms and 1-D plate impact are all considered in some detail. Hi...
متن کاملUsing split Hopkinson pressure bars to perform large strain compression tests on polyurea at low, intermediate and high strain rates
The strain rate sensitivity of polyurea is characterized using a modified split Hopkinson pressure bar (SHPB) system. The device is composed of a hydraulic piston along with nylon input and output bars. In combination with an advanced wave deconvolution method, the modified SHPB system provides an unlimited measurement time and thus can be used to perform experiments at low, intermediate and hi...
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ژورنال
عنوان ژورنال: Polymer Testing
سال: 2021
ISSN: 0142-9418
DOI: 10.1016/j.polymertesting.2020.106863