材料性能对加筋圆柱壳结构稳定性的影响  

EFFECT OF MATERIAL PROPERTIES ON STRUCTURAL STABILITY OF RING-STIFFENED CYLINDRICAL SHELLS

作　　者：陈岑[1] 刘尹 朱时洋 和卫平[3] 武晓雷[1] 张均锋[1] CHEN Cen;LIU Yin;ZHU Shiyang;HE Weiping;WU Xiaolei;ZHANG Junfeng(Institute of Mechanics,Chinese Academy of Sciences,Beijing 100190,China;School of Engineering Science,University of Chinese Academy of Sciences,Beijing 100049,China;Wuhan Second Ship Design and Research Institute,Wuhan 430064,China)

机构地区：[1]中国科学院力学研究所,北京100190 [2]中国科学院大学工程科学学院,北京100049 [3]武汉第二船舶设计研究所,武汉430064

出　　处：《力学与实践》2024年第6期1201-1206,共6页Mechanics in Engineering

基　　金：中国科学院基础与交叉前沿科研先导专项(XDB0620303)资助。

摘　　要：研究加筋圆柱壳结构在静水压下的稳定性对深海工程具有重要意义。针对材料性能对加筋圆柱壳结构稳定性的影响,本文选取两种材料——高强钢和钛合金,建立典型的结构模型,结合有限元计算和理论分析重点研究了材料的关键性能参数——杨氏模量、屈服强度以及硬化能力对加筋圆柱壳结构在静水压下的失稳临界载荷和失稳模式的影响规律。本文的工作能为加筋圆柱壳结构优化及承载能力的提升提供可靠依据。Exploring the stability of ring-stiffened cylindrical shells under hydrostatic pressure is of highly importance for the deep-sea engineering.For the influences of mechanical properties on the stability of ringstiffened cylindrical shells,two kinds of materials,i.e.,high-strength steel and titanium alloy were chosen and the typical structural model was established in this paper.By combing the finite element calculation and theoretical analyses,the effects laws of pivotal material performance properties parameters on the instable critical pressure and mode of ring-stiffened cylindrical shells under hydrostatic pressure were mainly studied,such as Young's modulus,yield strength and hardening capacity.This work could provide a reliable basis for the optimal design and the increase of carrying capacity of ring-stiffened cylindrical shells.

关 键 词：加筋圆柱壳 静水压 稳定性 高强钢 钛合金 

分 类 号：O344.7[理学—固体力学]