کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1467854 990121 2007 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Failure analysis of a hybrid composite structural beam
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Failure analysis of a hybrid composite structural beam
چکیده انگلیسی

The purpose of this study was to identify the failure mode of a particular composite structural beam developed for the civil infrastructure market and to develop a strength prediction that could be utilized in fatigue life predictions. First, a global–local finite element stress analysis is utilized to examine the possibility of compression failure. We then investigate the possibility of a delamination failure using a successive sub-modeling approach that allows detailed analysis of the inter-laminar stresses in regions of high stress gradients, including free edges and tapered laminates. The results of the analyses are compared with experimental test data from full-scale bending tests. The results indicate a compression dominated failure in the top flange in the vicinity of the load patch. This study highlights the difficulty in applying a stress-based approach to predicting delamination failure, particularly in complex laminated structures.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part A: Applied Science and Manufacturing - Volume 38, Issue 3, March 2007, Pages 691–698
نویسندگان
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