کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10292888 | 511591 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Application of acoustic emission to study creep behaviour of composite bonded lap shear joints
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
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چکیده انگلیسی
The objective of this work is to define criteria to distinguish different types of rupture of composite bonded lap shear joints by using non-destructive acoustic emission method. Bonded joints of carbon-epoxy, glass-epoxy and mixed, were considered. The method is efficient to carry out the progressive damage induced by creep. The influence of some aspects related with crack initiation and growth, included in the damage propagation mechanism, are also discussed. A damage acoustic coefficient, Cd, allowing to characterize the bonded joint rupture from acoustic emission signal, is defined at the secondary stage of creep. The effects of temperature and moisture on the creep behaviour and on the corresponding AE signal were studied by comparison of cumulative counts. The obtained results showed that the acoustic signal increases in function of each of these effects.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: NDT & E International - Volume 38, Issue 1, January 2005, Pages 45-52
Journal: NDT & E International - Volume 38, Issue 1, January 2005, Pages 45-52
نویسندگان
A.G. Magalhães, M.F.S.F. de Moura,