کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5437166 1509726 2017 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of fibre orientation on the tensile behaviour of ultra-high performance fibre reinforced cementitious composites
ترجمه فارسی عنوان
تاثیر جهت گیری فیبر بر رفتار کششی کامپوزیت های سیمانی تقویت شده فیبر فوق العاده با مقاومت بالا
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
چکیده انگلیسی
The main objective of this study is to quantify the effect of fibre orientation on the tensile behaviour of Ultra-High Performance Fibre-Reinforced Cementitious Composites (UHPFRC). A strategy to align the steel fibres within the matrix based on the activation of an external magnetic field while casting is adopted to achieve a wide range of fibre orientation profiles. The uniaxial tensile test is used for determining the tensile stress-elongation curves of 22 specimens and the quantitative evaluation of the fibre density and orientation characteristics is performed resorting to an image analysis technique. Based on the obtained results it was possible to validate an analytical formulation for determining the tensile strength of UHPFRC and to quantify the involved parameters. It is also shown that length of the hardening branch of the tensile stress-elongation curve is also very well correlated with the same parameters used in the determination of the tensile strength.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cement and Concrete Research - Volume 97, July 2017, Pages 28-40
نویسندگان
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