Sandwich Beam(夹层梁)研究综述
Sandwich Beam 夹层梁 - Flexural wave propagation through a sandwich beam, composed of two parallel Euler–Bernoulli beams connected with the translational and rotational springs at a periodic interval (acronym metasandwich), is analytically investigated in this paper. [1] In this investigation, linear and nonlinear bending analyses of sandwich beams with functionally graded cores are determined under different types of distributed loads. [2] The investigation to analyse a sandwich beam’s static stability with asymmetric configuration, tapered along the thickness, placing on a Pasternak foundation having linearly varying stiffness and influenced by an alive axial load is executed for several boundary conditions employing computational method. [3] Accordingly, using Euler-Bernoulli beam theory and considering two types of air damping (external damping) and structural damping (internal damping), the equations of motion for sandwich beam are obtained and then using the Kantorovich method, the output voltage relations for a composite beam with a piezoelectric layer are extracted. [4] This method associated a two-dimensional mixed finite element with virtual crack extension technique for the analysis of interfacial delamination of sandwich beams. [5] The dynamic behavior of functionally graded (FG) sandwich beams resting on the Pasternak elastic foundation under an arbitrary number of harmonic moving loads is presented by using Timoshenko beam theory including the significant effects of shear deformation and rotary inertia. [6] The strain sensors are pasted on the sandwich panels and four-point bending of the sandwich beams is performed to predict its flexural strength. [7] This paper aims to propose a new theory on the elastoplastic transient response of sandwich beams under large displacement with moderate rotation, including an analysis strategy for multi-dimensional elastoplasticity and the corresponding numerical solving technique. [8] The effect of introducing additional cores in sandwich beams is investigated in detail along with various geometric configurations. [9] The flexural behaviour of sandwich beam panels with integrated reinforcement and expanded polystyrene (EPS) core is evaluated at different shear span to depth (a/d) ratios. [10] A differential-algebraic numerical method namely as Differential quadrature method (DQM) and Bolotin method are utilized for solution of equations of motion and gain the dynamic response of the sandwich beam. [11] Through the dynamic response of the sandwich beam under a moving load, the feasibility of the scheme is verified. [12] With the consideration of such interesting deformation characteristics, the dynamic deformation evolution of the sandwich beam with star-shaped reentrant honeycomb core (SSRHC) was carried out for the first time. [13] This paper presents the dynamic responses of sandwich beams with 3D printed thermoplastic composite face sheets and multi-walled carbon nanotubes reinforced magnetorheological elastomer (MWCNT-MR elastomer) cores under non-uniform magnetic fields. [14] The present paper studies buckling and free vibration analyses of sandwich beam. [15] ABSTRACT Magnetorheological fluid (MRF) sandwich beams belong to a class of adaptive beams that consists of MRF sandwiched between two or more face layers and have a great prospective for use in semi-active control of beam vibrations due to their superior vibration suppression capabilities. [16] A dynamic analysis of the behavior of sandwich beams with a viscoelastic core under the action of a moving load is performed considering their geometrical asymmetry. [17] We fabricated self-reinforced polypropylene (SrPP) sandwich beams (SrPPSBs) through an ex-situ consolidation based fabrication method that can be potentially applied for high volume cost-effective production of SRCs structures. [18] With this objective, the present study deals with the static analysis of laminated composite and sandwich beams curved in elevation using a new quasi-3D polynomial type beam theory. [19] This paper presents an analysis for the dynamic stability of sandwich beams/wide plates subjected to axial impulsive loads. [20] Free vibration analysis of a sandwich beam with honeycomb core and piezoelectric face sheets, which is rested on the viscoelastic foundation is investigated. [21] The purpose of this study is to investigate the buckling characteristics of a sandwich beam consisting of a porous ceramic core (Alumina), two bottom and upper layers which are gradually changed fr. [22] The core of the sandwich beam is homogeneous while its two face sheets are made from three distinct materials with material properties varying in both the length and thickness directions by power gradation laws. [23] In this research, the bending resistance of sandwich beams with aluminum face-sheets and graded polyurethane foam core with different densities were investigated. [24] One type of blind rivet (aluminum, with three clamping arms) and one type of sandwich beam were used. [25] The structural performance of the Steel-Concrete-Steel (SCS) sandwich beams with bolt connectors subjected to off-center impact load was investigated in this paper. [26] The sandwich beam is modeled using the extended higher-order sandwich panel theory. [27] The free and forced vibration characteristics of a sandwich beam with composite face layers and partially configured carbon nanotubes reinforced magnetorheological elastomer (hybrid MR elastomer) c. [28] In this article a sandwich beam structure with honeycomb core filled of MRE (magnetorheological elastomer) with different ratios of Elastomer and iron particles is proposed. [29] The first objective is to analyze the composite properties at 0%, 10%, 20% and 30% of coconut shell in the sandwich beam using rules of mixture. [30] The stress calculation and modal analysis of sandwich beam/plate structure are carried out by using engineering algorithm and two finite element modeling methods. [31] This work focuses on the free and forced vibrations of sandwich beams and plates hosting an arbitrary number of damping cores. [32] For the flexural test specimen, sandwich beams were tested under three-point bending. [33] In this work, sandwich beam-like specimens with hexagonal, triangular and rectangular infills were manuf. [34] In this paper, a kind of sandwich beam structure with EMs as the core is further constructed, the simplified solution process is extended to such more practical model analysis, and the free and steady forced vibration analysis processes of the finite-size sandwich beam are given. [35] Although sandwich panels are widely used in the industry, the limitations in the cores’ structure designs and materials restrain their use in stiffness- or strength-critical applications without increasing the sandwich beams’ dimensions. [36] The investigation to analyze a sandwich beam's dynamic stabilitywith asymmetric configuration, tapered along the thickness and width, and influenced by an alive axial load with temperature gradient is executed for several boundary conditions employing computational method. [37] For the sandwich beams with stiff, soft and hybrid face sheets, the failure modes were similar to those of the monolithic beams. [38] In this article, a vibrational behavior of sandwich beams with stiff and flexible cores and face sheets reinforced with carbon nanotubes is investigated. [39] An exact solution of the governing equation is developed for sandwich beams with various boundary conditions and subjected to an arbitrarily distributed harmonic transverse load. [40] The numerical results show that natural frequencies of the sandwich beam initially increase and then decrease with the rise in thickness of metal foam core. [41] The performance of sandwich beams with expanded metal sheets as core was studied under transverse impact loading. [42] MethodsHere in this research work, design and fabrication of a sandwich beam consisting of three layers are undertaken; two outer layers of aluminium and one core layer of MR fluid. [43] RZT, which has been exploited for the analysis of multilayered composite and sandwich beams does not employ shear correction factor. [44] The indentation response of the bi-layer is also compared with that of a sandwich beam in 3-point bending. [45] This paper is dedicated to study the elastic buckling behavior of isotropic, laminated composite and sandwich beams subjected to various axially varying in-plane loads and boundary conditions (BCs). [46] With a view towards modelling nonlinear elastic response of sandwich beams made of architected lattice core, a geometrically exact formulation for micropolar Timoshenko beam is developed. [47] A numerical example is included to study the effects of temperature on the mechanical responses of a sandwich beam. [48] We consider a theoretical analysis and experimental test of a sandwich beam, with a core layer made of controllable material that can change its properties over time. [49] An exact procedure is proposed to analyze vibration suppression of magnetorheological fluid (MRF) sandwich beams based on the Timoshenko shear deformable beam model. [50]本文分析研究了通过夹层梁的弯曲波传播，该夹层梁由两个平行的 Euler-Bernoulli 梁组成，并以周期性的间隔与平移和旋转弹簧相连（首字母缩写词 metasandwich）。 [1] 在这项研究中，在不同类型的分布载荷下确定了具有功能梯度芯的夹层梁的线性和非线性弯曲分析。 [2] 采用计算方法对几个边界条件进行了研究，以分析具有不对称配置、沿厚度逐渐变细、放置在具有线性变化刚度并受活轴向载荷影响的帕斯捷尔纳克基础上的夹层梁的静态稳定性。 [3] 据此，利用 Euler-Bernoulli 梁理论，考虑空气阻尼（外阻尼）和结构阻尼（内阻尼）两种类型，得到夹层梁的运动方程，然后利用 Kantorovich 方法，得到复合材料的输出电压关系。提取带有压电层的梁。 [4] 该方法将二维混合有限元与虚拟裂纹扩展技术相关联，用于分析夹层梁的界面分层。 [5] 通过使用 Timoshenko 梁理论，包括剪切变形和转动惯量的显着影响，提出了在任意数量的谐波移动载荷下基于 Pasternak 弹性地基的功能梯度 (FG) 夹层梁的动态行为。 [6] 应变传感器粘贴在夹层板上，并对夹层梁进行四点弯曲以预测其抗弯强度。 [7] 本文旨在提出一种新的夹层梁在大位移和适度旋转下的弹塑性瞬态响应理论，包括多维弹塑性的分析策略和相应的数值求解技术。 [8] 详细研究了在夹层梁中引入附加芯的效果以及各种几何配置。 [9] 在不同的剪切跨度与深度 (a/d) 比率下评估具有集成钢筋和膨胀聚苯乙烯 (EPS) 芯的夹层梁板的弯曲行为。 [10] 微分代数数值方法，即微分求积法（DQM）和Bolotin方法用于求解运动方程并获得夹层梁的动态响应。 [11] 通过夹层梁在移动荷载作用下的动力响应，验证了方案的可行性。 [12] 考虑到这种有趣的变形特征，首次开展了星形凹入蜂窝芯夹层梁（SSRHC）的动态变形演化。 [13] 本文介绍了具有 3D 打印热塑性复合材料面板和多壁碳纳米管增强磁流变弹性体 (MWCNT-MR 弹性体) 芯的夹层梁在非均匀磁场下的动态响应。 [14] 本文研究夹层梁的屈曲和自由振动分析。 [15] 摘要 磁流变流体（MRF）夹层梁属于一类自适应梁，它由夹在两个或多个面层之间的MRF组成，由于其优越的振动抑制能力，在梁振动的半主动控制中具有很大的应用前景。 [16] 考虑到它们的几何不对称性，对具有粘弹性芯的夹层梁在移动载荷作用下的行为进行了动态分析。 [17] 我们通过基于异位固结的制造方法制造了自增强聚丙烯 (SrPP) 夹层梁 (SrPPSBs)，该方法可潜在地应用于 SRC 结构的大批量经济高效生产。 [18] 为此，本研究使用新的准 3D 多项式梁理论对高程弯曲的层压复合材料和夹层梁进行静态分析。 [19] 本文介绍了在轴向冲击载荷作用下夹层梁/宽板的动态稳定性分析。 [20] 研究了放置在粘弹性地基上的具有蜂窝芯和压电面板的夹层梁的自由振动分析。 [21] 本研究的目的是研究由多孔陶瓷芯（氧化铝）组成的夹层梁的屈曲特性，两个底层和上层逐渐变化。 [22] 夹层梁的核心是同质的，而它的两个面板由三种不同的材料制成，其材料特性在长度和厚度方向上都根据功率梯度定律而变化。 [23] 在这项研究中，研究了具有不同密度的铝面板和分级聚氨酯泡沫芯的夹层梁的抗弯性能。 [24] 使用了一种类型的盲铆钉（铝，具有三个夹紧臂）和一种类型的夹层梁。 [25] 本文研究了带有螺栓连接件的钢-混凝土-钢（SCS）夹层梁在偏心冲击载荷作用下的结构性能。 [26] 使用扩展的高阶夹层板理论对夹层梁进行建模。 [27] 具有复合面层和部分配置的碳纳米管增强磁流变弹性体（混合MR弹性体）的夹层梁的自由和受迫振动特性c。 [28] 在本文中，提出了一种以不同比例的弹性体和铁颗粒填充 MRE（磁流变弹性体）的蜂窝芯夹层梁结构。 [29] 第一个目标是使用混合规则分析夹层梁中椰子壳在 0%、10%、20% 和 30% 时的复合材料性能。 [30] 采用工程算法和两种有限元建模方法对夹层梁/板结构进行应力计算和模态分析。 [31] 这项工作的重点是承载任意数量的阻尼芯的夹层梁和板的自由和受迫振动。 [32] 对于弯曲试样，夹层梁在三点弯曲下进行了测试。 [33] 在这项工作中，制造了具有六边形、三角形和矩形填充物的夹层梁状试样。 [34] 本文进一步构建了一种以EMs为核心的夹层梁结构，将简化求解过程推广到更实用的模型分析中，给出了有限尺寸夹层梁的自由稳定受迫振动分析过程。 . [35] 尽管夹芯板在工业中得到广泛应用，但芯材结构设计和材料的限制限制了它们在刚度或强度关键应用中的使用，而不会增加夹芯梁的尺寸。 [36] 采用计算方法对几种边界条件下的非对称结构、沿厚度和宽度呈锥形、受活轴向载荷和温度梯度影响的夹层梁动态稳定性进行了研究。 [37] nan [38] nan [39] nan [40] nan [41] nan [42] nan [43] nan [44] nan [45] nan [46] nan [47] nan [48] nan [49] nan [50]
low velocity impact
A new stiffener-enhanced steel–concrete–steel (SESCS) sandwich beam was proposed for impact resisting, and the dynamic response of the SESCS sandwich beam under low-velocity impact loading was experimentally, numerically and analytically studied. [1] Dynamic failure behaviors of fully clamped and simply supported composite sandwich beams with stepwise gradient foam cores subject to low-velocity impact have been investigated experimentally. [2] Dynamic response of fully clamped sandwich beams with a metal foam core under low-velocity impact is investigated experimentally and theoretically. [3] This study addresses the bending impact behaviour of sandwich beams made of a low density core bonded to two metal face sheets under low-velocity impact. [4] Numerical analyses were carried out to investigate the response of a sandwich beam with a negative stiffness (NS) core under quasistatic compression and low-velocity impact at the center. [5]提出了一种新的加强筋增强型钢-混凝土-钢（SESCS）夹层梁抗冲击，并对SESCS夹层梁在低速冲击载荷下的动态响应进行了实验、数值和分析研究。 [1] 实验研究了具有阶梯梯度泡沫芯的全夹紧和简支复合夹层梁在低速冲击下的动态破坏行为。 [2] nan [3] nan [4] nan [5]
finite element model
In order to study the dynamic behaviors of metal foam sandwich beams (MFSBs) under repeated impact loadings, the nonlinear finite element model was established based on the material model of crushable foam by using Abaqus-Explicit, and the approach to achieve repeated impacts in the software was proposed. [1] A beam finite element model is proposed for the static and free vibration analyses of FGM sandwich beams with viscoelastic nonlinear material behavior. [2] A finite element model is developed to investigate the vibration and damping of elastic–viscoelastic–elastic sandwich beams. [3]为研究泡沫金属夹层梁（MFSBs）在重复冲击载荷下的动力学行为，基于可压碎泡沫材料模型，利用Abaqus-Explicit建立非线性有限元模型，以及在重复冲击载荷下实现重复冲击的方法。提出了软件。 [1] 提出了一种梁有限元模型，用于对具有粘弹性非线性材料行为的 FGM 夹层梁进行静态和自由振动分析。 [2] nan [3]
scaled boundary finite
In this research, free and forced vibrations of the functionally graded material (FGM) sandwich beams are investigated by using the scaled boundary finite element method (SBFEM). [1] In this paper, a new semi-analytical approach based on the scaled boundary finite element method (SBFEM) is proposed to solve buckling problem of functionally gradient material (FGM) sandwich beams. [2] In this article, the bending properties of functionally graded material (FGM) sandwich beams are analyzed by using the scaled boundary finite element method (SBFEM) for the first time. [3]在这项研究中，使用比例边界有限元法 (SBFEM) 研究了功能梯度材料 (FGM) 夹层梁的自由和受迫振动。 [1] 在本文中，提出了一种基于比例边界有限元法（SBFEM）的新半解析方法来解决功能梯度材料（FGM）夹层梁的屈曲问题。 [2] nan [3]
carbon fiber reinforced
The work explores computationally the impact resistance of the proposed bio-inspired sandwich beam comprising top and bottom carbon fiber reinforced polymer laminate skins sandwiching the side-arched hot melt adhesive and aluminum honeycomb dual-core, as bio-inspired by the beak, skull bone, hyoid, and spongy bone of the woodpecker head. [1] In the present investigation, we present, the flexural characteristics of carbon fiber reinforced polymer/polyurethane foam and glass fiber reinforced polymer/polyurethane foam sandwich beams having partial debonding between facesheet and core that acts interfacial degradation and hinders the load transfer between facesheets and core. [2] Damping films were obtained by hot press and embedded in a composite sandwich beam and carbon fiber reinforced polymer (CFRP)-aluminum panels. [3]这项工作在计算上探索了所提出的仿生夹层梁的抗冲击性，该夹层梁包括顶部和底部的碳纤维增强聚合物层压表皮，夹着侧拱形热熔胶和铝蜂窝双芯，仿生喙、颅骨、舌骨和啄木鸟头部的海绵状骨。