Recent developments in manufacturing, mechanics, and design optimization of variable stiffness composites

D Punera, P Mukherjee - Journal of Reinforced Plastics and …, 2022 - journals.sagepub.com
The functional advantages of tailored stiffness, often seen in nature, are also utilized in
composite structures. Advancements in the multiaxis tow placement and automated fiber …

加筋路径驱动的板壳自适应等几何屈曲分析

金灵智, 王禹, 郝鹏, 张越一, 王博 - 力学学报, 2023 - lxxb.cstam.org.cn
加筋薄壁结构常被用于航空航天结构的轻量化设计. 随着结构尺寸和几何特征的增加,
需要更加精细的网格来满足分析精度的要求. 传统的等几何方法采用NURBS …

A simplified isogeometric approach for vibrational analysis of nanocomposite panels with a free-form curve

H Mohammadi, M Shojaee, Y Kiani - Thin-Walled Structures, 2023 - Elsevier
This paper investigates, the free vibration behavior of nanocomposite panels with a free-
form curve slides on a straight line. It is assumed that the laminated composite panel is …

A NURBS-based degenerated stiffener element for isogeometric static and buckling analysis

P Hao, Y Wang, H Tang, S Feng, B Wang - Computer Methods in Applied …, 2022 - Elsevier
Complex shells and curvilinear stiffeners are promising for the lightweight design of
aerospace structures. Along with the increasing of structural size and geometric …

Isogeometric analysis-based buckling optimization framework for grid-stiffened shells using asymptotic homogenization method and Rayleigh–Ritz method

Y Sun, Z Zhou, P Lai, H Li, G Wang, B Wang… - Structural and …, 2022 - Springer
The grid-stiffened shell is a promising aerospace structure configuration with high load-
carrying capacity. However, it is challenging to fully exploit its optimal load-carrying …

Shape and size optimization framework of stiffened shell using isogeometric analysis

Z Zhou, Y Sun, X Li, Y Zhou, K Tian, P Hao… - Thin-Walled Structures, 2024 - Elsevier
A shape and size optimization framework is developed to improve the structural
performance of the stiffened shell using isogeometric analysis. To accurately model the …

Comparative Study of Skin–Stringer Connection Approaches for Stiffened Structures with Curvilinear Stiffeners

W Zhao, J Seo, RK Kapania - AIAA Journal, 2023 - arc.aiaa.org
Additive manufacturing enables the deposition of material in the near-net shape at any
desired location on the base plate or shell to improve the structural performance by tailoring …

Dynamic instability analysis of sandwich plates with auxetic honeycomb core and three-phase hybrid composite layers stiffened by curved stiffeners using …

MR Ghovehoud, S Sarrami, M Azhari… - Engineering …, 2024 - Elsevier
This article investigates the dynamic instability of a stiffened sandwich plate with an auxetic
honeycomb core and three-phase hybrid composite (PMMA/GPL/Carbon fiber) layers. To …

Large elastoplastic deformation prediction for stiffened plate based on incremental absolute nodal coordinate formulation

Y Lin, C Gao, Y Niu, H Yu - Thin-Walled Structures, 2024 - Elsevier
Elastoplastic deformation with significant reference rotation of large stiffened plate is hard to
be predicted effectively using conventional FEM and analytical methods, due to high …

Adaptive isogeometric buckling analysis of stiffened panels driven by stiffener paths

J Lingzhi, W Yu, H Peng, Z Yueyi… - Chinese Journal of …, 2023 - lxxb.cstam.org.cn
The stiffened thin-walled structures are broadly used in the lightweight design of aerospace
structures. With the increase in structure size and geometric characteristics, more refined …