A study on mechanical properties after bonded repair of sandwich composite materials

Autor:	Myung-Hyun Kim, Seongwon Yoon, Sung-Hoon Kim, Jong-Rok Ha
Rok vydání:	2020
Předmět:	Materials science Recovery rate Hull 0103 physical sciences Fracture (geology) Statistical and Nonlinear Physics Composite material 010306 general physics Condensed Matter Physics 01 natural sciences
Zdroj:	Modern Physics Letters B. 34:2040033
ISSN:	1793-6640 0217-9849
DOI:	10.1142/s0217984920400333
Popis:	In this paper, an experimental study was conducted to determine the efficiency of repair methods for sandwich composites used as hull materials in leisure ships. The method was applied to external, scarf, and step patch repairs using an epoxy bond. The load was described in terms of the hogging and sagging moments applied to the hull by waves. Static and fatigue tests were performed to derive the recovery rate of repaired specimens. The experimental results indicated that the recovery rate of specimens with the scarf patch was the highest at 91.80% when the hogging moment was applied. However, the difference in the recovery rate between hogging and sagging moments was the lowest for specimens with the step patch, and the recovery rate was high at 89.96% and 85.15%, respectively.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ef8c1a0d6f390be2e548a0ac72a42195 https://doi.org/10.1142/s0217984920400333 Zobrazit plný text záznamu