Ultimate strength of a square plate with a longitudinal/transverse dent under axial compression
Ultimate strength of a square plate with a longitudinal/transverse dent under axial compression
复制标题
DOI：
10.1007/s12206-011-0527-4
复制
发表时间：
2011-10
影响因子：
1.6
通讯作者：
A. V. Raviprakash-;B. Prabu;N. Alagumurthi
中科院分区：
文献类型：
--
作者：
A. V. Raviprakash-;B. Prabu;N. Alagumurthi
薄壳结构是一种高效的结构，因为其承载能力高且重量轻。薄板是常见的结构元件之一。它们的承载能力主要取决于它们的屈曲行为，而屈曲行为又受到它们存在的缺陷的影响。凹痕是薄壳结构中常见的几何缺陷之一，除其他原因外，凹痕可能由于尖锐物体的撞击而在板上形成。目前的工作使用 ANSYS 非线性 FEA，在简支边界条件下的单轴压缩载荷下，对各种凹痕参数对薄板极限强度的影响进行了数值研究，其中纵向或横向凹痕位于板的中心。
Thin shell structures are efficient structures because of their high load-carrying capacity and small weight. Thin plates are one of the common structural elements. Their load-carrying capacity mainly depends on their buckling behavior, which is in turn affected by the imperfections present in them. Dent is one of the common geometrical imperfections in thin shell structures, which may be formed in the plate as an impact of sharp objects, among other reasons. Using ANSYS nonlinear FEA, the present work conducts a numerical study of the effect of various dent parameters on the ultimate strength of a thin plate, with a longitudinal or a transverse dent located centrally on the plate, under uniaxial compressive loading with simply supported boundary conditions.