Mechanics of Composite Materials最新文献_第6页

Investigation of the Effect of Adding Waste Eggshell Particles to a Resin Used for SLA Printing Applications 研究在用于 SLA 印刷的树脂中添加废蛋壳颗粒的效果

IF 1.7 4区材料科学

Mechanics of Composite Materials Pub Date : 2024-02-24 DOI: 10.1007/s11029-024-10177-3

G. A. Yavuz, B. G. Kıral, G. M. Gençer, Z. Kıral

引用次数: 0

Vibration Analysis of Shearable Composite Annular Plates Reinforced by Graphene Nanoplatelets Using the Differential Quadrature Method 使用微分正交法分析由石墨烯纳米片增强的可剪切复合环形板的振动分析

IF 1.7 4区材料科学

Mechanics of Composite Materials Pub Date : 2024-02-24 DOI: 10.1007/s11029-024-10178-2

Q. Zhou, J. H. Zhang

引用次数: 0

Microstructure-Based Modeling of the Dynamic Behaviors of SiCp/7075Al Composites 基于微观结构的 SiCp/7075Al 复合材料动态行为建模

IF 1.7 4区材料科学

Mechanics of Composite Materials Pub Date : 2024-02-24 DOI: 10.1007/s11029-024-10179-1

Qingbo Chi, Xiaoming Du, Yan Wang, Lei Cao

引用次数: 0

Mechanical Characteristics of Thermoplastic Polymers for 3d Printed Hybrid Structures 用于 3D 打印混合结构的热塑性聚合物的机械特性

IF 1.7 4区材料科学

Mechanics of Composite Materials Pub Date : 2024-02-24 DOI: 10.1007/s11029-024-10172-8

O. Bulderberga, E. Zīle, R. Joffe, J. Sevcenko, A. Aniskevich

{"title":"Mechanical Characteristics of Thermoplastic Polymers for 3d Printed Hybrid Structures","authors":"O. Bulderberga, E. Zīle, R. Joffe, J. Sevcenko, A. Aniskevich","doi":"10.1007/s11029-024-10172-8","DOIUrl":"https://doi.org/10.1007/s11029-024-10172-8","url":null,"abstract":"This study focuses on the mechanical properties of different thermoplastic polymers that have been processed by fused filament fabrication, including basic (PLA, PC, PA, ABS, PP, CPE, PET-G), industrial (PEI, PEKK), and with added functionality (thermochromic, electrostatic discharge, electrically conductive). Analysis of the porosity of specimens was performed by X-ray microtomography and optical microscopy of a fractured surface, both giving similar results. During printing, a non-equilibrium polymer macromolecular structure was created. The stiffness and strength of the printed specimens were impacted by the stabilization of the macromolecular structure over time. The maximum values were reached for amorphous materials after 24 hours and for semi-crystalline materials after 160 hours. Tensile properties of “as-received” filaments, extruded mono-fibers, and unidirectional printed specimens were compared. In most cases, the elastic modulus of “as-received” filaments was lower than that of the extruded mono-fibers by 12% on average. Loading rate significantly affects both elastic modulus and strength, confirming the essential contribution of the viscoelastic component to the whole deformability of polymers. The elastic modulus and strength increased by 20 and 80%, respectively. The effects of layer thickness and nozzle diameter on mechanical properties were investigated. The compatibility of different polymer types for hybrid structures was evaluated in the adhesion tests. Tests showed that adhesion at hybrid PLA contact is only slightly affected by the presence of colourant additives in one of the parts. However, approx. 10 times adhesion reduction was observed when one of the parts contained conductive particles.","PeriodicalId":18308,"journal":{"name":"Mechanics of Composite Materials","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2024-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139950249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of Reinforcement Around the Lightening Hole in Composite Plates Under Tension and Shear Loads 拉伸和剪切载荷下复合板减震孔周围加固的研究

IF 1.7 4区材料科学

Mechanics of Composite Materials Pub Date : 2024-02-24 DOI: 10.1007/s11029-024-10182-6

{"title":"Investigation of Reinforcement Around the Lightening Hole in Composite Plates Under Tension and Shear Loads","authors":"","doi":"10.1007/s11029-024-10182-6","DOIUrl":"https://doi.org/10.1007/s11029-024-10182-6","url":null,"abstract":"Different methods can be applied to strengthen the weakened structure in perforated composite plates. A comparison of the four reinforcement models around the hole (ring, daisy, square and ellipse) under pure tension, pure shear, and combined (both tensile and shear loads) loadings was presented using Tsai-Wu failure criteria and calculations by finite element method (FEM). Before FEM analysis, tensile tests were performed with 12 tensile- and 6 shear-test specimens made of woven carbon fiber epoxy prepreg. During the tests of shear-test specimens, the strain distribution was obtained using the digital image correlation (DIC) method. Finite element verification was performed with both the applied force-deformation curve determined in the tensile test and the strain distribution obtained by the DIC technique. It was observed that four different reinforcement models, which have 38% volume of the created lightening hole, provide at least by 30% strength improvement to the unreinforced structure under tensile and shear loadings. Under combined loadings, according to the tensile/shear load ratio, the reinforcement types provide improvements at different rates.","PeriodicalId":18308,"journal":{"name":"Mechanics of Composite Materials","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2024-02-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139949869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Mechanical Vibration and Impact Loading on the Performance of Poly (Vinylidene Fluoride) Composite 机械振动和冲击载荷对聚（偏氟乙烯）复合材料性能的影响

IF 1.7 4区材料科学

Mechanics of Composite Materials Pub Date : 2024-02-23 DOI: 10.1007/s11029-024-10183-5

A. Jain, E. Dange, K. J. Jesmary, S. J. Kumar, R. Hamsa

{"title":"Effect of Mechanical Vibration and Impact Loading on the Performance of Poly (Vinylidene Fluoride) Composite","authors":"A. Jain, E. Dange, K. J. Jesmary, S. J. Kumar, R. Hamsa","doi":"10.1007/s11029-024-10183-5","DOIUrl":"https://doi.org/10.1007/s11029-024-10183-5","url":null,"abstract":"Piezoelectric polymer poly(vinylidene fluoride) (PVDF) is extensively used as sensor and actuator devices owing their excellent piezoelectric and pyroelectric properties. However, the melting point of PVDF is relatively low and the service temperature of PVDF is up to 100°C. This restricts the use of PVDF in high temperature applications. This can be improved by adding appropriate fillers to the PVDF. In the present study, a composite of PVDF-Onium salt was developed and characterized to improve the thermal efficiency of PVDF for high temperature applications. In order to investigate the presence of β-phase, which is necessary for sensor applications, X-ray diffraction, scanning electron microscopy, differential scanning calorimetry, Raman and infrared spectra, and dielectric test were used to characterize PVDF-Onium salt composite films made using the solvent cast method. The melting point of PVDF-Onium salt composite was found to be higher (175°C) as compared to the PVDF polymer alone (168.2°C) which has been discussed in detail. The PVDF-Onium salt composite sensors were further tested for dynamic strain sensing application for the first time. The modes of cantilever beam vibrations and the impact loading effects were recorded in order to assess the performance of these sensors.","PeriodicalId":18308,"journal":{"name":"Mechanics of Composite Materials","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2024-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139949969","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Shear Buckling Mode and Failure of Flat Fiber- Reinforced Specimens in the Axial Compression 2. Numerical Method, Experimental and Numerical Investigations of the Specimens with a [0]s Layup 扁平纤维增强试样在轴向压缩中的剪切屈曲模式和破坏 2.具有 [0]s 层叠结构的试样的数值方法、实验和数值研究

IF 1.7 4区材料科学

Mechanics of Composite Materials Pub Date : 2024-01-19 DOI: 10.1007/s11029-023-10157-z

{"title":"Shear Buckling Mode and Failure of Flat Fiber- Reinforced Specimens in the Axial Compression 2. Numerical Method, Experimental and Numerical Investigations of the Specimens with a [0]s Layup","authors":"","doi":"10.1007/s11029-023-10157-z","DOIUrl":"https://doi.org/10.1007/s11029-023-10157-z","url":null,"abstract":"In the first part of the article [1], a physically and geometrically nonlinear boundary-value problem, that describes the compression of a fiber-reinforced plastic rod with [0]s layup, was formulated. The rod had a rectangular cross-section and thin elastic side tabs. The boundary-value problem was reduced to a system of integral-algebraic equilibrium equations containing Volterra integral operators of the second type. To find its numerical solution, the method of finite sums in the variant of integrating matrices was used. The advantage of the method is the possibility of a strong local thickening of the computational grid in the region of large gradients of solutions. Based on the algorithm constructed, an application software package was developed. The results of computational experiments showed that the test specimens under compression according to one of the most commonly used test schemes predominantly failed when the localized transverse shear stresses reached their ultimate values. Failure was also possible according to the shear buckling mode in stress concentration zones. The identification of such modes was possible by using a proposed refined geometrically and physically nonlinear deformation model built in the quadratic approximation with account of transverse shear strains and transverse compression. To verify the numerical method developed, physical experiments were carried out on unidirectional carbon-fiber-reinforced specimens with [0]s layup. They showed a good agreement between the theoretical and experimental results of the research.","PeriodicalId":18308,"journal":{"name":"Mechanics of Composite Materials","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2024-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139507372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Flexure Investigation of P-FG-Plates Via Integral Quasi-3D Theory with Considering Imperfection in the Material Composition 通过准三维积分理论研究 P-FG 板的挠曲问题，同时考虑材料成分中的缺陷

IF 1.7 4区材料科学

Mechanics of Composite Materials Pub Date : 2024-01-18 DOI: 10.1007/s11029-023-10165-z

A. Attia, F. Bourada, A. A. Bousahla, A. Tounsi, K. H. Benrahou, S. R. Mahmoud, M. Hussain

引用次数: 0

Bending and Vibration of a Bio-Inspired Bouligand Composite Plate Using the Finite-Element Method 使用有限元法研究生物灵感布里甘德复合板的弯曲和振动

IF 1.7 4区材料科学

Mechanics of Composite Materials Pub Date : 2024-01-16 DOI: 10.1007/s11029-023-10166-y

M. A. Eltaher, O. A. Aleryani, A. Melaibari, A. A. Abdelrahman

{"title":"Bending and Vibration of a Bio-Inspired Bouligand Composite Plate Using the Finite-Element Method","authors":"M. A. Eltaher, O. A. Aleryani, A. Melaibari, A. A. Abdelrahman","doi":"10.1007/s11029-023-10166-y","DOIUrl":"https://doi.org/10.1007/s11029-023-10166-y","url":null,"abstract":"Biological structures, such as mantis shrimp crustacean, provide a rich source of inspiration for constructing high-performance materials with an excellent mechanical strength and impact resistance. Therefore, helicoidal structures inspired by mantis shrimp were investigated to explore the static and dynamic properties. The firstorder shear deformation theory of plates was used to describe the displacement field of laminated helicoidal composite plates. By the finite-element analysis (FEA), the bending and vibrations of bio-inspired composite plates were studied numerically using the ANSYS mechanical analysis software and the parametric design language APDL. Three classical orientations (unidirectional, cross-ply, and quasi-isotropic) and two helicoidal (linear and Fibonacci) orientations were considered. The “SHELL281” finite element of the APDL tool was exploited to solve the problem numerically with three integration points in each direction. The model proposed was verified, and its parametric studies were performed to clear up the effects of fiber orientation, slenderness ratio, and elasticity ratio on the static and free vibrations of a Bouligand composite plate. Results showed that the composite material had extraordinary mechanical properties, which is highly important for their unlimited applications in military industry and civil engineering.","PeriodicalId":18308,"journal":{"name":"Mechanics of Composite Materials","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2024-01-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139475221","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Contact Interaction of a Stamp and a Poroelastic Strip Lying on a Winkler Base 位于温克勒底座上的印章与多孔弹性条的接触相互作用

IF 1.7 4区材料科学

Mechanics of Composite Materials Pub Date : 2024-01-13 DOI: 10.1007/s11029-023-10164-0

M. I. Chebakov, E. M. Kolosova

引用次数: 0