Recovery Behavior of the Propagating Buckle on Elastic Structures  

作　　者：Liu, Zhihong  Huang, Yuying  Liu, Qikai 

机构地区：[1] Huazhong Univ of Science and, Technology [HUST], Hubei, China

出　　处：《China Ocean Engineering》1993年第3期313-322,共10页中国海洋工程（英文版）

基　　金：This project is financially supported by the National Natural Science Foundation of China through Grant 19072026

摘　　要：Based on the beam system model used by Chater, Hutchinson and Neale (1982), the recovery behavior of propagating buckle on elastic structures is first found out from the computational results. As the representative of some elastic structures, the Chater-Hutchinson-Neale model indicates that once the buckle meets arrestors, unlike the case in submarine pipelines, it will be reflected back to continue its propagation in a negative phase or a negative direction. The pressure which maintains the negative propagation, however, is as same as that required for the positive propagation. This fact has been examined in the experiment of the bulge propagation on a long elastic latex tube. The present discovery greatly supports the hypothesis that the buckle propagation corresponds to the coexisting phase of structures.Based on the beam system model used by Chater, Hutchinson and Neale (1982), the recovery behavior of propagating buckle on elastic structures is first found out from the computational results. As the representative of some elastic structures, the Chater-Hutchinson-Neale model indicates that once the buckle meets arrestors, unlike the case in submarine pipelines, it will be reflected back to continue its propagation in a negative phase or a negative direction. The pressure which maintains the negative propagation, however, is as same as that required for the positive propagation. This fact has been examined in the experiment of the bulge propagation on a long elastic latex tube. The present discovery greatly supports the hypothesis that the buckle propagation corresponds to the coexisting phase of structures.

关 键 词：Finite element method Mathematical models Ocean engineering Offshore structures Pressure effects 

分 类 号：P7[天文地球—海洋科学]