压缩载荷下钢质Ⅰ型夹层梁极限承载能力分析  

Research on the ultimate load carrying capacity of metallicⅠ-core sandwich beams under compression loads

作　　者：王海洋[1] 王云霆 贺远松[1] 王福花[1] 张攀[2] WANG Hai-yang;WANG Yun-ting;HE Yuan-song;WANG Fu-hua;ZHANG Pan(Marine Design and Research Institute of China,Shanghai 200011,China;School of Naval Architecture and Ocean Engineering,Huazhong University of Science and Technology,Wuhan 430074,China)

机构地区：[1]中国船舶及海洋工程设计研究院,上海200011 [2]华中科技大学船舶与海洋工程学院,湖北武汉430074

出　　处：《舰船科学技术》2021年第23期83-87,共5页Ship Science and Technology

摘　　要：钢质Ⅰ型夹层结构作为一种潜在广泛应用于船舶工程的结构,其极限承载能力备受关注。本文研究压缩载荷下钢质Ⅰ型夹层梁的极限承载能力,设计并开展缩比模型试验,掌握了钢质Ⅰ型夹层梁结构的极限承载特性。同时,建立了分析压缩载荷下钢质Ⅰ型夹层梁极限承载能力的有限元模型,通过与试验数据对比,验证了数值预报结果的有效性。利用数值模型,探讨了钢质Ⅰ型夹层梁模型各部件厚度对其极限承载能力的影响规律。结果表明,改变下面板厚度对极限承载能力的影响最为敏感,芯层壁厚次之,而上面板厚度最为不敏感,相关研究结果对钢质Ⅰ型夹层结构的工程应用具有一定的指导意义。In this paper,a metallicⅠ-core sandwich beam was designed and manufactured using laser welding technique.The elastic-plastic mechanical properties and ultimate bearing capacity of the metallicⅠ-core sandwich beam were obtained by the ultimate bearing test under axial compression.The versatile explicit analysis code ANSYS was employed to establish the numerical model and analyze the mechanical properties of the metallicⅠ-core sandwich beam under axial compression.Then,the results of the numerical simulation were compared with the experimental data.Finally,the influence of the thickness of the component on the ultimate bearing capacity of the metallicⅠ-core sandwich beam was studied when the mass of the model was equally increased.The results showed that changing the thickness of the back panel was the most sensitive to the ultimate bearing capacity,followed by the core web thickness,and the upper panel thickness was the least sensitive.All the findings aim to guide the engineering application of the metallicⅠ-core sandwich beam.

关 键 词：钢质Ⅰ型夹层梁 轴向压缩载荷 极限承载 试验 有限元 

分 类 号：U663.6[交通运输工程—船舶及航道工程]