Abstract
Model updating is a process of making adjustment of certain parameters of finite element model in order to reduce discrepancy between analytical predictions of finite element (FE) and experimental results. Finite element model updating is considered as an important field of study as practical application of finite element method often shows discrepancy to the test result. The aim of this research is to perform model updating procedure on a composite structure as well as trying improving the presumed geometrical and material properties of tested composite structure in finite element prediction. The composite structure concerned in this study is a plate of reinforced kenaf fiber with epoxy. Modal properties (natural frequency, mode shapes, and damping ratio) of the kenaf fiber structure will be determined using both experimental modal analysis (EMA) and finite element analysis (FEA). In EMA, modal testing will be carried out using impact hammer test while normal mode analysis using FEA will be carried out using MSC. Nastran/Patran software. Correlation of the data will be carried out before optimizing the data from FEA. Several parameters will be considered and selected for the model updating procedure.
Highlights
The extensively use of composite structure across various field such as automotive, aerospace, naval and other high performance engineering application is due to their unique characteristics; light weight, high specific strength and stiffness, easy to fabricate and excellent thermal characteristics
Dynamic behaviour in terms of natural frequency, damping ratio and mode shapes can be determine via modal analysis process either by numerical or experimental
All the signals were converted into frequency response function (FRF) which was later processed in post-processing software in order to obtain modal data of all tested composite plates
Summary
The extensively use of composite structure across various field such as automotive, aerospace, naval and other high performance engineering application is due to their unique characteristics; light weight, high specific strength and stiffness, easy to fabricate and excellent thermal characteristics. This has aroused many researchers to study various aspect of their structural behaviour. This study will attempt to improve the presumed geometrical and material properties of tested composite structure that was used beforehand in finite element prediction
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
