کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7212339 | 1469348 | 2018 | 48 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A temperature-dependent global failure criterion for a composite/metal joint
ترجمه فارسی عنوان
معیار شکست جهانی برای یک ترکیب کامپوزیت / فلز
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کلمات کلیدی
اتصالات کامپوزیت / فلزی، چسبندگی، خواص درجه حرارت بالا، مدل سازی تحلیلی، اتصالات / پیوستن،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
چکیده انگلیسی
The use of composites to repair localized corrosion damage in metallic pipelines has significantly increased in the past years. Repair techniques using polymer-based composites are interesting, since they do not require draining the line and stop operation. However, pipelines conveying liquids may work at elevated temperatures, what can be a limitation for the use of polymeric materials. The adhesion between pipe and composite is the key to the effectiveness of the repair (sleeves or patches), mainly in the case of through-thickness defects. This paper is a preliminary attempt to propose and analyse a global failure criterion for a particular class of adhesively bonded composite-metal joints. Single-lap joints (SLJ) were fabricated with metal and composite adherends bonded with an epoxy resin reinforced with Aramid fibres. The surface treatment adopted in this study was the same used in the field for repairs. The performance of these joints in pure bending and in shear was studied at four test temperatures: 25 °C, 50 °C, 70 °C and 90 °C. The mechanical behaviour is rate and temperature dependent. A global energy criterion for the joint fracture is proposed. It is verified experimentally that, for a given temperature, the critical energy is the same in both kinds of tests and that this energy decreases almost linearly with temperature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part B: Engineering - Volume 137, 15 March 2018, Pages 278-286
Journal: Composites Part B: Engineering - Volume 137, 15 March 2018, Pages 278-286
نویسندگان
B. Andrade, J.P.B. Souza, J.M.L. Reis, H.S. da Costa Mattos,