摘要
根据口字型结构压缩时主要失效形式,将研究空间结构的承载问题转化为易损板稳定问题。考虑纸板的初始挠度,建立了对边简支对边自由边界条件下,夹层板稳定问题的基本方程。方程组的求解采用改进的纳维叶双三角级数法,得到了临界屈曲载荷的计算公式。由公式可知,结构承载性能与纸板的初始挠度、高宽比和材质有关。
The load carrying performance of space structure was translated into the stability of vulnerable parts, according to the main failure form of box-shaped structure. The basic differential equations of orthotropic sandwich with initial deflection was established, and solved by Navier dual-trigonometric series. The calculation formula for critical bending load was obtained. It was showed by the formula that the load carrying performance is related to the initial deflection, ratio of high to width, and material.
出处
《包装工程》
CAS
CSCD
北大核心
2008年第1期66-67,99,共3页
Packaging Engineering
