کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
251934 502949 2013 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Numerical analysis of a piezoelectric structural health monitoring system for composite flange-skin delamination detection
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Numerical analysis of a piezoelectric structural health monitoring system for composite flange-skin delamination detection
چکیده انگلیسی

In this paper, a piezoelectric based Structural Health Monitoring (SHM) system is proposed to detect skin/stiffener debonding and delamination cracks proper of laminated composite structures. The SHM system is analyzed by means of a boundary element code implemented in the framework of piezoelectricity. The multidomain technique, coupled with an interface spring model, is used to model laminated composite structures as well as the bonding between the host delaminated structure and the piezoelectric sensor. Static sensitivity analyses are firstly performed on a drop-ply delaminated structure in order to identify a suitable configuration for the sensor. Then, the dynamic electromechanical response of the damaged structure with the bonded piezoelectric sensor is investigated. The definition of a damage index allows an effective identification of the skin/stiffener debonding occurrence. In order to fully characterize the host structure SHM system assembly, the fracture mechanics behavior of the structure is also studied in terms of the total energy release rate G and of the phase angle Ψ.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composite Structures - Volume 100, June 2013, Pages 343–355
نویسندگان
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