کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
822003 906776 2009 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fiber/epoxy interfacial shear strength measured by the microdroplet test
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Fiber/epoxy interfacial shear strength measured by the microdroplet test
چکیده انگلیسی

In this study, we analyzed the interfacial shear strength between epoxy and carbon fibers, measured from microdroplet specimens adhered onto a single carbon fiber. Microdroplet specimens exhibited different results of the interfacial strength according to the range of embedded fiber lengths and the calculation methods. The shear stress distributions along the interface were calculated by using the finite element analysis of the droplet, sphere and cylinder model types. The stress analysis showed that a larger shear stress concentration arose along the interface for the droplet model than for the cylindrical one. A compensation factor for the conventional shear lag model is suggested to deduce the real interfacial shear strength on the basis of the average octahedral shear stress calculated from the distortional energy for a unit volume.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Science and Technology - Volume 69, Issue 2, February 2009, Pages 245–251
نویسندگان
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