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http://dx.doi.org/10.3744/SNAK.2019.56.4.335

An Experimental Study on Mechanical Properties and Failure Behavior of Plywood  

Cha, Seung-Joo (Department of Naval Architecture and Ocean Engineering, Pusan National University)
Kim, Jeong-Dae (Department of Naval Architecture and Ocean Engineering, Pusan National University)
Kim, Jeong-Hyeon (Department of Naval Architecture and Ocean Engineering, Pusan National University)
Oh, Hoon-Kyu (Maritime Research Institute, Hyundai Heavy Industries Co. Ltd.)
Kim, Yong-Tai (Maritime Research Institute, Hyundai Heavy Industries Co. Ltd.)
Park, Seong-Bo (Maritime Research Institute, Hyundai Heavy Industries Co. Ltd.)
Lee, Jae-Myung (Department of Naval Architecture and Ocean Engineering, Pusan National University)
Publication Information
Journal of the Society of Naval Architects of Korea / v.56, no.4, 2019 , pp. 335-342 More about this Journal
Abstract
The objective of this study is to analyze the mechanical properties of plywood used as a thermal insulating material for LNG CCS (Liquefied Natural Gas, Cargo Containment System). It is created by bonding an odd number of parallel and perpendicular direction for preventing contraction and expansion of wood. Also plywood is widely used as LNG CCS insulating material because of its durability, light weight and high stiffness. Since LNG CCS is loaded with liquid cargo, the impact load by sloshing during operation and the wide temperature range (room temperature, low temperature, cryogenic temperature) exposed during loading, unloading should be considered. The thickness of the plywood which is used for the membrane type MARKIII was selected as the thickness of the test specimen. In this present study, plywood is analyzed by the fracture behavior and mechanical properties of plywood by temperature and grain direction. In addition, it is necessary to analyze the fracture shape and predict the fracture strain by using regression model because the critical load may cause cracks inside the tank, which may affect the leakage of cryogenic liquid.
Keywords
Liquefied natural gas; Plywood; Fracture behavior; Mechanical properties;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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