کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
769161 897375 2011 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
JC-integral fracture parameter analysis and application for double-layer high-temperature components
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
JC-integral fracture parameter analysis and application for double-layer high-temperature components
چکیده انگلیسی

A JC-integral fracture parameter for the safety assessment of components with more complex loadings was given in the paper, and it was carried out with 3D finite element method. Moreover, the cyclone separator of catalytic cracking unit, which is a typical double-layer high-temperature component, was taken as the practical application case. From the test results, it can be concluded that the high temperature fracture toughness JIC of cyclone separator has decreased significantly after long service. In this condition, the JC-integral can provide us warranty to conclude whether the fracture of cyclone separator will occur under normal loading situation. By comparing the JC-integral value with the experiment test value JIC, the probability of fracture is very small under normal service situation unless there are very long cracks (over 100 mm) in the cyclone separator. Hence the JC-integral can be regarded as an effective fracture parameter for evaluating the safety of double-layer high-temperature components.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Failure Analysis - Volume 18, Issue 1, January 2011, Pages 52–60
نویسندگان
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