کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
775513 898339 2009 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A fracture mechanics approach for the prediction of the failure time of polybutene pipes
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
A fracture mechanics approach for the prediction of the failure time of polybutene pipes
چکیده انگلیسی

In this work two grades of Isotactic polybutene-1 with a different degree of isotacticity have been investigated; fracture tests have been performed at various temperatures and testing speeds on DCB and SENB samples. Optical methods have been used to record crack advancement.Results of the tests have been interpreted using the fracture mechanics framework; a time–temperature superposition scheme has been adopted to describe crack propagation behaviour over several decades of time-scale. An analytical model has been applied to predict the lifetime of pressurised pipes from experimental fracture data. There is good agreement between model predictions and experimental data obtained from full-scale tests on real pipes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Fracture Mechanics - Volume 76, Issue 18, December 2009, Pages 2666–2677
نویسندگان
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