کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8160710 1525111 2018 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Yield strength measurement of shock-loaded metal by flyer-impact perturbation method
ترجمه فارسی عنوان
اندازه گیری توان تولید فلزات شوکدار با روش برانگیختگی فلیکر
کلمات کلیدی
قدرت تولید، روش تحریف تأثیر فیلتر، دامنه اختلال،
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
چکیده انگلیسی
Yield strength is one of the most important physical properties of a solid material, especially far from its melting line. The flyer-impact perturbation method measures material yield strength on the basis of correlation between the yield strength under shock compression and the damping of oscillatory perturbations in the shape of a shock front passing through the material. We used flyer-impact experiments on targets with machined grooves on the impact surface of shock 6061-T6 aluminum to between 32 and 61 GPa and recorded the evolution of the shock front perturbation amplitude in the sample with electric pins. Simulations using the elastic-plastic model can be matched to the experiments, explaining well the form of the perturbation decay and constraining the yield strength of 6061-T6 aluminum to be 1.31-1.75 GPa. These results are in agreement with values obtained from reshock and release wave profiles. We conclude that the flyer-impact perturbation method is indeed a new means to measure material strength.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica B: Condensed Matter - Volume 538, 1 June 2018, Pages 167-171
نویسندگان
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