کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
832489 908121 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Measurement and analysis of residual stresses in single fiber composite
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Measurement and analysis of residual stresses in single fiber composite
چکیده انگلیسی

This paper deals with the thermal residual stress of carbon fiber-reinforced composite, which arises from the different coefficient of thermal expansion (CTE) of constituents during cooling from the processing temperature down to room temperature. It is studied by experiment and theoretical analysis. In experiment, the real-time electrical resistance detection method is applied to measure the carbon fiber electrical resistance, where the single carbon fiber itself is used as internal sensor in composite material. The axial residual strain and also stress is obtained by the relationship between strain and electric resistance based on its electrical property. To explain the experiment data, a 3D theoretical column model with three phases was established to calculate the unit cell stress field by governing equations and boundary conditions. Result shows the experiment data is approximately close to theoretical model; meanwhile, theoretical model gives more detailed stress distribution, which is difficult to measure, in three directions of all phases.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design - Volume 31, Issue 3, March 2010, Pages 1237–1241
نویسندگان
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