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Register a new userStudying and Improvement of Strength in Adhesive Joints
دراسة متانة وصلات اللصق و تحسنيها
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يهدف البحث إلى دراسة متانة وصلات اللصق التراكبية البسيطة، لصفائح الألمنيوم المطبقة كثيرا في التطبيقات الهندسية، و تم التحقق من تأثير كل من مسافة التداخل، و قيم الخشونة السطحية للسطوح الملصقة على متانة القص للوصلات المنجزة، حُضّرت الوصلات الملصقة باستخدام نوعين من المواد اللاصقة، و هما الايبوكسي و الأكريليك و نُفذت الاختبارات التجريبية تحت تأثير حمل الشد حتى الكسر باستخدام آلة الشد. أظهرت النتائج إمكانية زيادة متانة الوصلات الملصقة بزيادة طول التداخل، و زيادة قيم الخشونة السطحية للسطوح الملصقة و حدد لاصق الأكريليك بأنه اللاصق الأمثل في الاختبارات المنفذة، و ذلك تبعا لنمط الفشل الحاصل في العينات المختبرة، و التي لم تتعرض فيها منطقة اللصق للانهيار مع زيادة الحمولة المطبقة.
The aim of this study is to determine strength of adhesive single-lap joints of Aluminum alloys which are widely used in geometric applications. It was investigated to define the influence of overlap length and surface roughness value on shear strength of achieved adhesive joints. It was used Epoxy and Acrylic adhesives to prepare adhesive joints and all the specimens were subjected to axial tensile tests and the results are presented as a comparison. Results of those tests showed that shear strength increased with increasing each of overlap length and surface roughness of adherends and Acrelicadhesiveproduced4better results according to failure mode of tested samples.
References used
DA SILVA, L. F.; DILLARD, D. A.; BLACKMAN, B.; ADAMS, R. D. Testing adhesive joints. John Wiley & Sons. 2012 Oct 22, 1- 468
ASGHARIFAR, M.; KONG, F.; CARLSON, B.; KOVACEVIC, R. An Experimental and Numerical Study of Effect of Textured Surface by Arc Discharge on Strength of Adhesively Bonded Joints. Journal of Mechanics Engineering and Automation. 2, 2012, 229-242
KWON, J.W.; LEE, D. G. The effects of surface roughness and bond thickness on the fatigue life of adhesively bonded tubular single lap joints. Adhesion Sci. Technol. Vol. 14(8), 2000, 1085–1102
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