کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5018496 | 1467435 | 2017 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High strain rate behavior of MC2 single crystal under uniaxial compression load at high temperature: Experiments and modeling
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی مکانیک
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: High strain rate behavior of MC2 single crystal under uniaxial compression load at high temperature: Experiments and modeling High strain rate behavior of MC2 single crystal under uniaxial compression load at high temperature: Experiments and modeling](/preview/png/5018496.png)
چکیده انگلیسی
This paper presents experimental and numerical investigations on single crystal nickel base superalloy MC2. The purpose of this study is to efficiently predict the consequences of impacts on turbine blades within gas turbine engines. Dynamic compression tests on Split Hopkinson Pressure Bar (SHPB), performed at high temperature, have allowed the identification of anisotropic and viscoplastic material data. The effects of crystal orientation (ã1 0 0ã, ã1 1 0ã and ã1 1 1ã), temperature (25, 750 and 1000â°C) and strain rate (up to 610 sâ1) on the compression yield strength and work hardening of MC2 single crystal have been examined. The LS-Dyna solver has been used to calibrate the parameters of a phenomenological behavior law based on a local Hill yield criterion. The results of simulations have been verified by comparison with a ballistic test on a monocrystalline plate, and on a turbine blade heated at 1000â°C. The measured residual deflections and strain fields are consistent with those obtained by calculation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Mechanics of Materials - Volume 104, January 2017, Pages 145-156
Journal: Mechanics of Materials - Volume 104, January 2017, Pages 145-156
نویسندگان
Louis Roux, Hervé Chalons, Hubert Maigre, Daniel Nélias,