کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6711985 1428722 2018 14 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of the boundary conditions on the Australian uniaxial tension test for softening steel fibre reinforced concrete
ترجمه فارسی عنوان
تأثیر شرایط مرزی بر روی آزمون کشش یکپارچه استرالیا برای تسریع بتن آرمه فولادی
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
In order to promote the regular use of steel fibre reinforced concrete (SFRC), a rational framework of material models identifying the key material parameters must be established. When considering the design of a structural member manufactured with SFRC, the defining property is its post cracking, or residual, tensile strength. In principle, a direct tension test is the ideal test that should be used in gathering the softening, or residual, parameters of SFRC experimentally. However, there are many parameters which may influence the results of the uniaxial tension test, and the choice of boundary conditions for the test is one of the most relevant ones. Three boundary or end conditions are possible: fixed-fixed, fixed-rotating, and rotating-rotating. In this paper, results of uniaxial tensile tests on twelve identical SFRC “dogbone” specimens tested with the end conditions listed above are presented. Each condition exhibits behaviour not present in the theoretically ideal tensile softening curve. Investigating this is the focus of the present study. It is concluded that the fixed-rotating end conditions serves as a compromise to the issues associated with the other test setups and seems to be more suited for uniaxial tension testing of softening SFRC.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 184, 30 September 2018, Pages 215-228
نویسندگان
, , , ,