纸瓦楞夹层板的压缩变形与塑性吸能特性研究

发布时间：2018-07-07 18:17

本文选题：纸瓦楞夹层板 + 压缩变形　；参考：《包装工程》2016年03期

【摘要】：目的研究在不同压缩速率下纸瓦楞夹层板的压缩变形与塑性吸能特性。方法利用Hoff夹层板、正交各向异性弹性薄板理论和工程梁理论,研究瓦楞夹层板的横向压缩位移,分析瓦楞芯层的压缩变形模式及塑性吸能特性,提出芯层结构的压溃强度模型,并通过静态压缩实验进行对比分析。结果B型、C型纸瓦楞夹层板的压溃强度理论预测值分别为0.1195,0.0612 MPa,在1,12,18,48 mm/min的压缩速率下,B型纸瓦楞夹层板的压溃强度分别为0.1011,0.1071,0.1048,0.1075 MPa,C型纸瓦楞夹层板的压溃强度分别为0.0462,0.0640,0.0475,0.0451 MPa。结论低应变率(低压缩率)条件下,纸瓦楞夹层板的横向压缩性能影响基本不变,弹性强度、屈服强度、压溃强度等基本相同。对于相同的材质,几何参数对纸瓦楞夹层板的压缩性能和塑性吸能影响较大。
[Abstract]:Aim to study the compression deformation and plastic energy absorption characteristics of paper corrugated sandwich plates at different compression rates. Methods using Hoff sandwich plate, orthotropic elastic thin plate theory and engineering beam theory, the transverse compression displacement of corrugated sandwich plate is studied, and the compression deformation mode and plastic energy absorption characteristics of corrugated core layer are analyzed. The crushing strength model of core structure is put forward, and the static compression experiment is carried out. Results the theoretical prediction values of the collapsing strength of B type paper corrugated sandwich plate were 0.1195 ~ 0.0612 MPa, respectively, and the crushing strength of B type paper corrugated sandwich board was 0.1011 ~ 0.1071 ~ 0.104 ~ (-1) ~ 0.1075 MPa / a at a compression rate of 1 ~ 12 ~ 1848 mm/min, respectively, and the crashing strength of B type paper corrugated sandwich plate was 0.04622 / 0.0640,0.04750.0451MPa, respectively. Conclusion under the condition of low strain rate (low compression ratio), the influence of transverse compression properties of paper corrugated sandwich plate is basically unchanged, and the elastic strength, yield strength and crushing strength are basically the same. For the same material, geometric parameters have a great effect on the compression performance and plastic energy absorption of the corrugated paper sandwich.
【作者单位】：西安理工大学;
【基金】：国家自然科学基金(51345008) 教育部留学回国人员科研启动基金
【分类号】：TB484.1

【相似文献】