کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5456597 | 1514664 | 2017 | 27 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Identification of elastic-plastic properties of metal materials by using the residual imprint of spherical indentation
ترجمه فارسی عنوان
شناسایی خواص الاستیک-پلاستیک مواد فلزی با استفاده از اثر باقی مانده از سوراخ کروی
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کلمات کلیدی
انداز کروی، شناسایی پارامترها، مواد فلزی، اثر باقی مانده، تجزیه و تحلیل معکوس،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
چکیده انگلیسی
In this paper, a novel inverse computation method is proposed to estimate the elastic-plastic properties of metal materials by using only the residual imprint of spherical indentation. The advantage of this method is that it does not need to know the entire loading history. The indentation experiment can be easily implemented on a hardness tester while the residual imprint can be measured using a 3D measuring laser microscope. We correlate the imprint snapshot with material constitutive parameters using proper orthogonal decomposition and parametric approximation, and then we solve the inverse problem using the “Interior-point” optimization algorithm. The effectiveness of this method is verified by application on 2099-T83 Al-Li alloys. Results show the inverse analysis gives well-posed solution of parameters of materials only when the penetration depth or the prescribed indentation load is sufficient, and the elastic-plastic properties obtained from indentation and uniaxial experimental data show good agreement. Besides, the sensitivity investigation indicates the use of weighting imprint obtained from different experiment loads is able to give a more stable and reliable result.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 679, 2 January 2017, Pages 143-154
Journal: Materials Science and Engineering: A - Volume 679, 2 January 2017, Pages 143-154
نویسندگان
Mingzhi Wang, Jianjun Wu, Yu Hui, Zengkun Zhang, Xuepeng Zhan, Ruichao Guo,