Failure behavior of sandwich beams with glass fiber-reinforced epoxy/aluminum laminates face-sheets and aluminum honeycomb core under three-point bending
Failure behavior of sandwich beams with glass fiber-reinforced epoxy/aluminum laminates face-sheets and aluminum honeycomb core under three-point bending
复制标题
玻璃纤维增强环氧/铝层压面板和铝蜂窝芯夹层梁在三点弯曲下的破坏行为
DOI：
10.1016/j.tws.2022.109476
复制
发表时间：
2022-08
影响因子：
6.4
通讯作者：
Wei Huang
中科院分区：
文献类型：
--
作者：
Jianxun Zhang;Yuqing Zhu;Hui Yuan;Wei Huang
对玻璃纤维增强环氧树脂/铝合金（GLARE）面板铝蜂窝夹层梁在三点弯曲载荷作用下的破坏行为和吸能性能进行了试验和数值研究。实验试件由2/1（2块铝板和1块玻璃纤维/环氧树脂层合板）GLARE和铝蜂窝芯组成。在准静态三点弯曲实验中，研究了芯层高度（8 mm、20 mm、40 mm）和压头形状（圆柱压头和平头压头）对试样弯曲破坏行为的影响。制备六个夹层梁试样（300 mm长和40 mm宽）。观察到GLARE夹层梁的初始破坏模式，即芯部剪切和压痕。利用ABAQUS/Explicit软件建立了考虑几何非线性的数值模型，并通过相同尺寸和加载条件下的试件试验结果验证了模型的有效性。详细讨论了几何参数和材料参数对GLARE夹层梁承载能力和能量吸收的影响。结果表明，增加面板厚度、蜂窝壁厚、芯跨比、金属材料的弹性效应或减小蜂窝单元边长均能提高GLARE夹层梁的承载能力和能量吸收能力。研究结果可为蜂窝夹芯GLARE夹层结构的设计提供指导。·研究了GLARE面板夹层梁的弯曲破坏行为和能量吸收。·观察了GLARE夹层梁的初始破坏模式。·数值计算结果与实验结果吻合较好。·增加面板厚度、蜂窝壁厚可以提高承载能力和能量吸收。
The failure behavior and energy absorption performance of aluminum honeycomb sandwich beams with glass fiber-reinforced epoxy/aluminum laminates (GLARE) face-sheets under three-point bending are experimentally and numerically studied. The experimental specimens consists of 2/1 (2 aluminum sheets and 1 glass fiber/epoxy laminates) GLARE and aluminum honeycomb core. The effects of core height (8 mm, 20 mm, 40 mm) and indenter shape (cylindrical indenter and flat indenter) on bending failure behavior are tested in quasi-static three-point bending. Six sandwich beam specimens (300 mm-long and 40 mm-wide) were prepared. The initial failure modes of GLARE sandwich beams are observed, i.e. core shear and indentation. The numerical model considering geometric nonlinearity is established by ABAQUS/Explicit software and its effectiveness is verified by the experimental results of specimens with the same size and loading conditions. The effects of geometric and material parameters on the load-carrying capacity and energy absorption of the GLARE sandwich beams are discussed in details. It is shown that increasing the face-sheet thickness, honeycomb wall-thickness, the ratio of the core height to span length and the elasticity effect of metal materials or reducing the side length of the honeycomb cell can improve the load-carrying capacity and energy absorption of GLARE sandwich beams. The work can provide the guidance for the design of the GLARE sandwich structure with honeycomb core. • Bending failure behavior and energy absorption of sandwich beams with GLARE face-sheets are studied. • The initial failure modes of GLARE sandwich beams are observed. • Numerical results are in good agreement with experimental ones. • Increasing face-sheet thickness, honeycomb wall-thickness can improve the load-carrying capacity and energy absorption.
登录
查看更多内容
用泡沫混凝土减轻埋地钢箱结构的有限爆炸响应
影响因子：
6.4
作者：
Xiaojuan Wang;Xuejian Zhang;Luyao Song;Honyuan Zhou;Yonghui Wang;Hong Zhang;Pengli Cong
通讯作者：
Pengli Cong
准静态载荷和低速冲击下泡沫金属混合复合材料夹层梁的变形与破坏
影响因子：
6.3
作者：
Wei Zhang;Qinghua Qin;Jianfeng Li;Kaikai Li;L.H. Poh;Yan Li;Jianxun Zhang;Shejuan Xie;Hongen Chen;Jianping Zhao
通讯作者：
Jianping Zhao
不同加载速率下短纤维组织和碳纤维带界面增韧碳纤维/蜂窝夹芯板的三点弯曲性能
DOI：
10.1016/j.compositesa.2021.106289
发表时间：
2021-04
期刊：
Composites: Part A
影响因子：
--
作者：
孙直;陈红杰;宋子文;刘浩洋;崔荣华;郭旭;石姗姗
通讯作者：
石姗姗
影响因子：
3.9
作者：
Hossein Taghipoor;M. Damghani Nouri
通讯作者：
Hossein Taghipoor;M. Damghani Nouri
DOI：
10.1016/j.compositesa.2018.08.015
发表时间：
2018-11
期刊：
Composites Part A: Applied Science and Manufacturing
影响因子：
--
作者：
Q. Qin;Wei Zhang;Shiyuan Liu;Jianfeng Li;Jianxun Zhang;L. H. Poh
通讯作者：
Q. Qin;Wei Zhang;Shiyuan Liu;Jianfeng Li;Jianxun Zhang;L. H. Poh