A new SHM methodology applied on composite plates

Author(s)

De Medeiros, R. ; Vandepitte, D. ; Tita, V. ; Sas, P ; Moens, D ; VanDeWalle, A

• Document type: Journal article
• Source: PROCEEDINGS OF ISMA2016 INTERNATIONAL CONFERENCE ON NOISE AND VIBRATION ENGINEERING AND USD2016 INTERNATIONAL CONFERENCE ON UNCERTAINTY IN STRUCTURAL DYNAMICS; v. N/A, p. 12-pg., 2016-01-01.

Abstract

This work consists of developing experimental studies about residual strength for composite plate using a new Structural Health Monitoring (SHM) methodology. For this, it is necessary: to identify and to localise damage, as well as to calculate the severity of the damage and to predict the residual strength of the composite structure. The proposed methodology contains three methods: (1) Vibration Based Method (VBM); (2) Shearography Speckle (SS) and (3) Flexural After Impact (FAI). Firstly, VBM provides frequency response functions to be analysed by a new damage metric, which is used for damage identification and global location. Secondly, the extension of impact damage is determined based on SS patterns. FAI tests are used to evaluate the residuals strength. A new criterion based on a relationship between the damage metrics from VBM and FAI analyses is presented and discussed. Finally, the advantages and limitations are discussed against the context of new SHM systems. (AU)

• FAPESP's process: 15/15221-8 - Improvement of Developed Methodology to Predict the Residual Strength of Composite Structures Damaged by Impact Loading.
• Grantee: Ricardo de Medeiros
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• FAPESP's process: 12/01047-8 - DEVELOPMENT OF CRITERION FOR STRENGTH RESIDUAL PREDICTION OF COMPOSITE STRUCTURES DAMAGED BY IMPACT
• Grantee: Ricardo de Medeiros
• Support Opportunities: Scholarships in Brazil - Doctorate