کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5206971 1382329 2011 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Test MethodImprovement of adhesive toughness measurement
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Test MethodImprovement of adhesive toughness measurement
چکیده انگلیسی

The double cantilever beam (DCB) method for adhesive toughness measurement was improved by incorporating a sufficiently sharp crack made by a wedge-tapping method. A known route to producing cracks via loading-unloading cycles was proved unreliable because the cycles produced plastic deformation in the adhesive where new cracks propagated. Abnormally high toughness values with large standard deviations were obtained with cracks made by embedding a non-sticky insert. Only instantly propagated cracks made by tapping were sufficiently sharp to produce reproducible, accurate toughness measurements. However, toughened resin was insensitive to crack sharpness. A crack length to adherend length ratio of 0.2-0.5 is recommended.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Testing - Volume 30, Issue 2, April 2011, Pages 243-250
نویسندگان
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