Linear and nonlinear transient response of sandwich beams made of FG-GPLRC faces and FGP core under moving distributed masses

IF 4.1 2区工程技术 Q1 ENGINEERING, MULTIDISCIPLINARY Engineering Analysis with Boundary Elements Pub Date : 2025-06-01 Epub Date: 2025-03-18 DOI:10.1016/j.enganabound.2025.106221

Nuttawit Wattanasakulpong , Wachirawit Songsuwan

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Abstract

This study considers transient response of sandwich beams produced from functionally graded graphene platelets-reinforced composite faces and functionally graded porous core under the action of various types of moving distributed masses. The equations of motion are developed by the energy method using a von Kármán type nonlinear strain-displacement relationship. Different micromechanical models are modified to approximate the effective material properties at the faces and the core. In order to solve the nonlinear system of this problem, the Newton–Raphson iteration procedure, time-integration of Newmark, and the Chebyshev-Ritz method work together to solve the transient response of the beams related to different parameters, such as material distribution, moving mass distribution, mass distance, and others. Our research indicates that sandwich beams composed of a functionally graded porous core (Type 2) and a FG-V distribution of graphene platelets at the faces have demonstrated a remarkable capacity to tolerate dynamic deformation.

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运动分布质量作用下FG-GPLRC面板和FGP芯芯夹层梁的线性和非线性瞬态响应

本文研究了石墨烯功能梯度板增强复合材料表面和功能梯度多孔芯在不同运动分布质量作用下的瞬态响应。采用von Kármán型非线性应变-位移关系，用能量法建立了运动方程。对不同的微观力学模型进行了修正，以接近表面和核心处的有效材料性能。为了求解该问题的非线性系统，采用牛顿-拉夫森迭代法、Newmark时间积分法和切比舍夫-里兹法共同求解梁的瞬态响应与材料分布、运动质量分布、质量距离等不同参数的关系。我们的研究表明，由功能梯度多孔芯（2型）和石墨烯薄片FG-V分布组成的夹层梁在表面表现出显著的承受动态变形的能力。

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来源期刊

Engineering Analysis with Boundary Elements 工程技术-工程：综合

CiteScore

5.50

自引率

18.20%

发文量

368

审稿时长

56 days

期刊介绍： This journal is specifically dedicated to the dissemination of the latest developments of new engineering analysis techniques using boundary elements and other mesh reduction methods. Boundary element (BEM) and mesh reduction methods (MRM) are very active areas of research with the techniques being applied to solve increasingly complex problems. The journal stresses the importance of these applications as well as their computational aspects, reliability and robustness. The main criteria for publication will be the originality of the work being reported, its potential usefulness and applications of the methods to new fields. In addition to regular issues, the journal publishes a series of special issues dealing with specific areas of current research. The journal has, for many years, provided a channel of communication between academics and industrial researchers working in mesh reduction methods Fields Covered: • Boundary Element Methods (BEM) • Mesh Reduction Methods (MRM) • Meshless Methods • Integral Equations • Applications of BEM/MRM in Engineering • Numerical Methods related to BEM/MRM • Computational Techniques • Combination of Different Methods • Advanced Formulations.