کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4920232 | 1429086 | 2017 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Classification of aluminium alloy cross-sections
ترجمه فارسی عنوان
طبقه بندی مقاطع آلومینیوم آلیاژ
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کلمات کلیدی
Continuous strength method (CSM)Aluminium alloys - آلیاژهای آلومینیومSimply supported beams - به سادگی پشتیبانی می کندReliability analysis - تجزیه و تحلیل قابلیت اطمینانStub columns - ستون ها را ببندیدCross-section classification - طبقه بندی مقطعیSlenderness limits - محدودیت های آرامشContinuous beams - پرتوهای مداوم
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی
Cross-section classification is one of the key concepts in the design of metallic structures. Current design specifications for aluminium alloys, such as Eurocode 9 (EC9), provide clear definitions and discrete design capacities for four different classes of cross-section. On the basis of substantial, recently generated experimental and numerical data on aluminium alloy cross-sections collected from the literature, the purpose of the present study is to re-evaluate the slenderness limits that define these classes. A total of approximately 900 relevant data points have been gathered, covering stub columns, simply supported beams and continuous beams; the cross-section types include square and rectangular hollow sections (SHS/RHS) with and without internal stiffeners, I-sections, channels and angles. The members were extruded from a variety of aluminium alloy tempers with a wide range of yield and ultimate strengths. Following analysis of the available data, the slenderness limits in EC9 have been re-assessed, and new slenderness limits in the EC9 framework are proposed. In addition, the full cross-section slenderness allowing for element interaction, which is utilised in the direct strength method (DSM) and the continuous strength method (CSM) has been considered as the slenderness parameter in a new classification framework. Corresponding slenderness limits, together with a compatible effective thickness formula for Class 4 sections, are proposed. The suitability of the proposed limits has been demonstrated for the conventional design methods in EC9, as well as the alternative methods in Annexes F and H of EC9.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Structures - Volume 141, 15 June 2017, Pages 29-40
Journal: Engineering Structures - Volume 141, 15 June 2017, Pages 29-40
نویسندگان
Mei-Ni Su, Ben Young, Leroy Gardner,