کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
245721 1428228 2015 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Stone impact damage identification in composite plates using modal data and quincunx wavelet analysis
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Stone impact damage identification in composite plates using modal data and quincunx wavelet analysis
چکیده انگلیسی

Low-velocity impact damaging of the composite structural elements is an important problem during machine's operation, especially in the aircraft and aerospace industries. Thus, appropriate nondestructive structural diagnostics methods should be developed in order to identify the damages in possible early stage of their development. The paper deals with the experimental study of impact damage identification of composite structures subjected to the low-velocity impacts by stones. The proposed damage identification algorithm is based on the modal analysis of damaged structures and further wavelet analysis of acquired modal shapes using nonseparable quincunx wavelets. The analysis was performed for the composite structures typical for those used in the aeroplane sheeting impacted with various energies. The application of quincunx wavelets allows for accurate localization of the damages and for avoiding the boundary effect occurred during an application of separable wavelets. Obtained results show the efficiency of the proposed method and could be used in industrial applications as well.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Archives of Civil and Mechanical Engineering - Volume 15, Issue 1, January 2015, Pages 251–261
نویسندگان
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