| Title |
Dynamic Response Analysis of Pipe Subjected to Underwater Explosion |
| Authors |
김성범(Kim, Seongbeom) ; 이경재(Lee, Kyungjae) ; 정동호(Jung, Dongho) ; 박대효(Park, Taehyo) |
| DOI |
https://doi.org/10.12652/Ksce.2014.34.1.0009 |
| Keywords |
수중폭발;구조-유체 상호작용;음압;충격파;충격응답 Underwater explosion;FSI;Acoustic pressure;Shock wave;Shock response |
| Abstract |
Interface behavior of concrete-infilled steel tube (CFT) was investigated based on the experimental observations and numerical analyses. Laboratory tests were performed for twelve CFTs that consisted of two different cases of diameters where each diameter case was composed of three different cases of shear span length. Thereby, diameter and shear span parameters were considered to prove the question of whether there exists interface slip between steel tube and infilled-concrete. Confining effect of steel tube to infilled concrete was also investigated by measuring lateral strain as well as longitudinal strain. Based on the study, it was concluded that confining effect of steel tube to infilled-concrete is not influential under flexural loading and therefore, the sectional analysis is an effective way to estimate the flexural strength of CFT. |