Effect of Manufacturing Process on Free Vibration of Foam-Core Sandwich Plate

Abstract:

In this paper, the effect of the manufacturing process on free vibration modes of foam-core sandwich plate were experimentally identified from frequency response tests. Three types of foam-core sandwich plate that fabricated by using hand lay-up, vacuum bagging and vacuum infusion process were tested and compared. The responses were made at selected locations on the plate surface by attaching a single-axis accelerometer to measure out-of-plane response. Resonant frequencies, relative damping ratios and mode shapes were established for the lowest 3 out-of-plane modes found in the frequency range of 0-900 Hz. The results show that the vibration characteristics were affected by the fabrication process of the sandwich structure.

• Periodical: Advanced Materials Research (Volume 845)
• Pages: 899-903
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.845.899
• Online since: December 2013
• Authors: Behzad Abdi, Syed Azwan, Ayob Amran*, Roslan Abdul Rahman, Yahya Mohd Yazid
• Keywords: Composite Sandwich Plate, Damping, Hand Lay-Up, Vacuum Bagging, Vacuum Infusion

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