Research and Development

TECHNICAL PUBLICATION

Technical Paper


STUDY ON THE ALTERNATIVE METHOD OF NON-DESTRUCTIVE TESTING FOR FIBER REINFORCED POLYMER

Tahun 2019
The usage of Fiber Reinforced Polymer (FRP) as a main construction material in ship’s hull is increasing every year. Due to the combination of its lightweight characteristic and excellent mechanical properties, FRP materials can be used in speed boat, high speed craft, passenger ship, and any other fast ships. The excellent mechanical properties can be achieved during the shipbuilding process. However, on the recent years, there are many accidents happened on FRP Ships. In fact, many FRP ships are built without the supervision of Classification Society, so that its material properties and quality cannot be ensured. It is not easy to assess the quality of installed materials on an existing ship, since it is not feasible to conduct a destructive test to determine mechanical properties; on the other hand, it is very important task. Hence, nondestructive test method is more preferable to determine quality of materials, considering its practicability for portable examination, and only small damage caused by this method. Modal Testing (Vibration Test) is one of the promising nondestructive test method to assess material properties. Furthermore, the material properties resulted from Modal Testing were compared with Tensile Testing as a conventional testing method. The comparisons then being analyzed and presented in this paper. Recommendations for further works were also included.

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