کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6706534 502916 2015 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Location of delaminations in curved laminated panels
ترجمه فارسی عنوان
محل خسارت در پانل های چند لایه منحنی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
In the present study the Structural Health Monitoring (SHM) area of science was applied to several levels of analysis: 1, confirmation the existence of damage, 2, determination of the size, location and orientation of the defect, 3, assessment the severity of the damage, 4, controlling the growth of damage and prognosis of service life of construction. The wave propagation in the panel/plate with local delamination was analyzed both numerically and experimentally. The excitation signal was generated by one actuator or more actuators to analyze the effectiveness of the method. Data from PZT sensors were collected by the analyzer and then signals were converted to digital ones with the use of MATLAB package. Based on collected data from different sensors and comparison with wave propagation model of intact structures it is possible to determine localization, size and orientation of defect using the proposed damage index. Experimental analysis has been compared with numerical results both for plates and flat cylindrical panels. In the next step of our analysis we considered optimal design of the location and number of piezoelectric sensors and actuators to characterize their influence on the structural dynamic response.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composite Structures - Volume 133, 1 December 2015, Pages 652-658
نویسندگان
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