کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6716554 1428744 2018 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Integrated experimental-computational approach for evaluating elastic modulus of cement paste corroded in brine solution on microscale
ترجمه فارسی عنوان
رویکرد مجتمع تجربی-محاسباتی برای ارزیابی مدول الاستیک کاست سیمان خورنده در محلول نمک بر روی میکروسکوپ
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
This paper presented an integrated computational-experimental approach for evaluating elastic modulus of cement paste corroded in brine solution on nanoscale. In the first place, the cured specimens were corroded in brine solution at room temperature for 90 days. Subsequently, the elastic moduli of 32 points of the corroded cement paste specimen were measured by nanoindentation test. Then, a three-dimensional nanoindentation model was established with finite element method and modified constitutive relation. The input parameters of the model were calibrated based on the test results and linear interpolation method. Finally, the difference between the simulation results and the experimental results was compared with good agreement. Therefore, the nanoindentation model established in this paper can predict the nanoindentation experiment well and the modified constitutive relation is effective.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 162, 20 February 2018, Pages 459-469
نویسندگان
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