Geometrically nonlinear transient response of graphene platelets reinforced metal foams arbitrary quadrilateral plates under blast load

IF 6.6 1区工程技术 Q1 ENGINEERING, CIVIL Thin-Walled Structures Pub Date : 2025-01-27 DOI:10.1016/j.tws.2025.113018

Gui-Lin She , Zhong-Shi Ma , Cheng Li , M.A. Eltaher

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Abstract

Due to its geometric flexibility, the arbitrary straight-side quadrilateral plate structure is applied in various engineering practices. This article explores the nonlinear transient response of arbitrary straight-side quadrilateral plates under pulse load, in which the graphene platelets reinforced metal foams (GPLRMF) material is taken into account due to their advantages of light-weight, high-strength and long service. Firstly, considering thermal factor, the nonlinear transient response model of quadrilateral plates is established based on the first-order shear deformation theory (FSDT) and von-Kármán's nonlinearity, where the effect of viscoelastic foundation is included. Then, the irregular physical domain is transformed into a regular computational domain through the four-point mapping procedure. Subsequently, the nonlinear transient response solution of the quadrilateral plate is obtained through Galerkin discretization and Runge-Kutta method. The accuracy of the present formulation in predicting the nonlinear transient response behavior of quadrilateral plates is illustrated by the convergent analysis and comparative study. Through preliminary parametric research, the effects of material parameters, load parameters, temperature, and shape parameters on the transient response of quadrilateral plates subjected to pulse load are demonstrated.

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爆炸荷载作用下石墨烯片增强金属泡沫任意四边形板的几何非线性瞬态响应

由于其几何柔性，任意直边四边形板结构在各种工程实践中得到了广泛的应用。本文研究了任意直边四边形板在脉冲载荷作用下的非线性瞬态响应，其中考虑了石墨烯片增强金属泡沫材料（GPLRMF）由于其重量轻、强度高、使用寿命长的优点。首先，考虑热因素，基于一阶剪切变形理论（FSDT）和von-Kármán的非线性，考虑粘弹性基础的影响，建立了四边形板的非线性瞬态响应模型；然后，通过四点映射将不规则的物理域转换为规则的计算域。随后，通过伽辽金离散化和龙格-库塔法得到了四边形板的非线性瞬态响应解。通过收敛分析和对比研究，说明了该公式在预测四边形板非线性瞬态响应行为方面的准确性。通过初步的参数化研究，论证了材料参数、载荷参数、温度参数和形状参数对脉冲载荷作用下四边形板瞬态响应的影响。

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来源期刊

Thin-Walled Structures 工程技术-工程：土木

CiteScore

9.60

自引率

20.30%

发文量

801

审稿时长

66 days

期刊介绍： Thin-walled structures comprises an important and growing proportion of engineering construction with areas of application becoming increasingly diverse, ranging from aircraft, bridges, ships and oil rigs to storage vessels, industrial buildings and warehouses. Many factors, including cost and weight economy, new materials and processes and the growth of powerful methods of analysis have contributed to this growth, and led to the need for a journal which concentrates specifically on structures in which problems arise due to the thinness of the walls. This field includes cold– formed sections, plate and shell structures, reinforced plastics structures and aluminium structures, and is of importance in many branches of engineering. The primary criterion for consideration of papers in Thin–Walled Structures is that they must be concerned with thin–walled structures or the basic problems inherent in thin–walled structures. Provided this criterion is satisfied no restriction is placed on the type of construction, material or field of application. Papers on theory, experiment, design, etc., are published and it is expected that many papers will contain aspects of all three.