کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
254400 503069 2006 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Damage detection of surface cracks in composite laminates using modal analysis and strain energy method
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Damage detection of surface cracks in composite laminates using modal analysis and strain energy method
چکیده انگلیسی

This paper presents an approach to detect surface cracks in various composite laminates. Carbon/epoxy composite AS4/PEEK was used to fabricate laminated plates, [0]16, [90]16, [(0/90)4]S and [±45/0/90]2S. Surface crack damage was created on one side of the plate using a laser cutting machine. Modal analysis was performed to obtain the mode shapes from both experimental and finite element analysis results. The mode shapes were then used to calculate strain energy using the differential quadrature method (DQM). Consequently, the strain energies of laminated plates before and after damaged were used to define a damage index which successfully identified the surface crack location.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composite Structures - Volume 74, Issue 4, August 2006, Pages 399–405
نویسندگان
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