کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4913364 | 1428765 | 2017 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Reliability analysis of adhesively bonded CFRP-to-steel double lap shear joint with thin outer adherends
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کلمات کلیدی
DLSCFRPWet lay-upLSEFEAMCsCOV - THESurface preparation - آماده سازی سطحBond strength - استحکام پیوندLeast-square estimation - برآورد حداقل مربعFinite element analysis - روش اجزاء محدودFirst-order reliability method - روش مطمئن بودن اولویتMonte-Carlo simulation - شبیه سازی مونت کارلوCohesive failure - شکست سفت و سختDuctility - شکل پذیریCoefficient of Variation - ضریب تغییرModel uncertainty - عدم قطعیت مدلForm - فرمReliability - قابلیت اطمینانCarbon fiber reinforced polymer - پلیمر تقویت شده فیبر کربنAdhesive - چسب
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
This paper presents the details of a reliability-based analysis of bonded double-lap shear (DLS) joints between steel and carbon fiber reinforced polymer (CFRP) composites. A comprehensive database of experimental results of CFRP-to-steel DLS joints is compiled and a probabilistic analysis of the data is conducted. The compiled experimental results are compared with the bond strengths predicted by the Hart-Smith model for thin adherends and the model uncertainty is characterized, for five popular structural epoxy adhesives and two types of surface preparation techniques. Considering the mechanical and geometrical uncertainties of constituent materials, two reliability-based approaches, First-Order Reliability Method (FORM) and Monte-Carlo Simulation (MCS), are used to calculate the resistance factor at a target reliability index of 3.5. It is found that these two approaches agree well and the resistance factor varies with adhesives, surface preparation techniques, and CFRP types. The importance vector of random variables reveals that the adhesive shear ductility is the most influential material property in determining the reliability index of the bonded joints.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 141, 15 June 2017, Pages 52-63
Journal: Construction and Building Materials - Volume 141, 15 June 2017, Pages 52-63
نویسندگان
Meng Liu, Mina Dawood,