Applied Composite Materials最新文献_第8页

Response Surface Model for Mechanical Properties of Robotically Stitched Composites 机器人缝合复合材料机械性能的响应面模型

IF 2.3 4区材料科学

Applied Composite Materials Pub Date : 2024-06-27 DOI: 10.1007/s10443-024-10245-w

Radwa Alaziz, Shuvam Saha, Rani W. Sullivan

{"title":"Response Surface Model for Mechanical Properties of Robotically Stitched Composites","authors":"Radwa Alaziz, Shuvam Saha, Rani W. Sullivan","doi":"10.1007/s10443-024-10245-w","DOIUrl":"10.1007/s10443-024-10245-w","url":null,"abstract":"<div><p>Composite structures are extensively used in several industries such as aerospace, automotive, sports, and construction due to their many advantages, including tailorable mechanical properties, high strength-to-weight ratios, and high specific stiffness. However, due to their low interlaminar tensile and shear strength, composites are prone to delaminations, which can degrade the overall mechanical performance of the structure. Through-thickness stitching provides a third-direction reinforcement to enhance the interlaminar tensile and shear strengths. In this study, quasi-isotropic composite test specimens were manufactured with a novel through-thickness robotic chain stitching with different patterns and tested under uniaxial tensile and three-point bend loadings. A design of experiments (DoE) approach was used to investigate the influence of stitch parameters (stitch density, stitch angle, and linear thread density) on the tensile strength, tensile modulus, and flexural strength of stitched composites. Experimental results are then used to develop a statistically informed response surface model (RSM) to find optimal stitching parameters based on a maximum predicted tensile strength, tensile modulus, and flexural strength. This study reveals and discusses the optimum selection of stitch processing parameters to improve the in-plane and out-of-plane mechanical properties.\u0000</p></div>","PeriodicalId":468,"journal":{"name":"Applied Composite Materials","volume":"31 5","pages":"1571 - 1591"},"PeriodicalIF":2.3,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141507926","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

Nanoplatelet Orientation and Young’s Modulus of Graphene/Phenoxy Nanocomposites 石墨烯/苯氧基纳米复合材料的纳米小板取向和杨氏模量

IF 2.3 4区材料科学

Applied Composite Materials Pub Date : 2024-06-19 DOI: 10.1007/s10443-024-10243-y

Han Lin, Prasad Potluri, William W. Sampson, Arthur N. Wilkinson

引用次数: 0

Large-Deformation Electrothermal Actuation Inchworm-Like Crawling Robot Based on Bistable Structures for Load Carrying 基于双稳态结构的大变形电热致动寸虫式爬行机器人，用于承载负荷

IF 2.3 4区材料科学

Applied Composite Materials Pub Date : 2024-06-14 DOI: 10.1007/s10443-024-10242-z

Zheng Zhang, Tianye Wang, Tao Zhang, Hongcheng Shen, Baisong Pan, Min Sun, Guang Zhang, Shaofei Jiang

{"title":"Large-Deformation Electrothermal Actuation Inchworm-Like Crawling Robot Based on Bistable Structures for Load Carrying","authors":"Zheng Zhang, Tianye Wang, Tao Zhang, Hongcheng Shen, Baisong Pan, Min Sun, Guang Zhang, Shaofei Jiang","doi":"10.1007/s10443-024-10242-z","DOIUrl":"10.1007/s10443-024-10242-z","url":null,"abstract":"<div><p>Crawling robots have great potential in some harsh environments, but there are still some limitations, such as tiny structures that can only produce small deformation and poor load-carrying capacity. A lightweight inchworm-like crawling robot made of bistable structure driven by electrothermal actuation is proposed in this paper. The robot has the characteristics of large deformation and a certain extent of load capacity. The motion of the crawling robot was realized by the common effect of the bistable structure and the designed feet with anisotropic friction. The unstable transition process between snap-through and snap-back processes of the bistable structure was utilized to provide morphological deformation. Meanwhile the feet with anisotropic friction transformed the deformation to unidirectional movement of the crawling robot. Through electric experiments, the electrothermal driving influencing factors of bistable structure are tested, including heating time, maximum temperature and curvature change, which demonstrates the possibility of driving inchworm-like crawling robot with bistable structure and large-deformation. And the structure of the inchworm-like crawling robot assembled by a bistable shell pasted with an electric heating sheet and the designed feet with anisotropic friction. In order to evaluate the motion properties and load-carrying function of the inchworm-like crawling robot, the step length test under different voltages and the experiment of the crawling robot load-carrying capacity were completed. The results show that the crawling robot performs well in load-carrying, can achieve crawling movement under the condition of carrying 10 g and 20 g objects. The inchworm-like crawling robot provides a method to achieve large-deformation and load-carrying and demonstrates it is suitable in some extreme environments.</p></div>","PeriodicalId":468,"journal":{"name":"Applied Composite Materials","volume":"31 5","pages":"1499 - 1513"},"PeriodicalIF":2.3,"publicationDate":"2024-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141343314","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

Experimental Investigation and Numerical Simulation of Bonded, Bolted, and Hybrid Joints in CFRP Laminates Under Tensile Loading 拉伸载荷下 CFRP 层压材料中粘接、螺栓连接和混合连接的实验研究与数值模拟

IF 2.3 4区材料科学

Applied Composite Materials Pub Date : 2024-06-03 DOI: 10.1007/s10443-024-10240-1

Yiming Shangguan, Wenjing Wang, Anrui He, Junsheng Qu

{"title":"Experimental Investigation and Numerical Simulation of Bonded, Bolted, and Hybrid Joints in CFRP Laminates Under Tensile Loading","authors":"Yiming Shangguan, Wenjing Wang, Anrui He, Junsheng Qu","doi":"10.1007/s10443-024-10240-1","DOIUrl":"10.1007/s10443-024-10240-1","url":null,"abstract":"<div><p>In this study, an in-depth analysis is carried out to simulate the failure mechanism of T700 carbon fiber-reinforced polymer composite (CFRP) joints with a layup sequence of [45/-45/0/90]<sub>3 s</sub> when subjected to tensile loading, both experimentally and numerically. We compared the mechanical performance of three different edge-to-bolt diameter ratios (E/d) of bonded, bolted, and hybrid single lap joints subjected to tensile loading. A finite element-based progressive damage method (PDM) along with the bilinear triangular cohesive zone model (BTCZM) is developed to predict the damage evolution and failure mechanism for all joint configurations. By juxtaposing the simulation outcomes and the experimental data, we observed the failure morphology and assessed the bearing capacity of the joint under tensile loading. The comparison results revealed a minor discrepancy of merely 5.5% in terms of joint load capacity between simulations and experiments, which indicates the high accuracy of our model. The strength of the adhesive and mechanical joints increases with E/d from 3 to 5; however, the strength of the hybrid joints decreases. At E/d = 3, hybrid joints performed significantly better than bonded ones, with a remarkable enhancement of 41.53%. However, for E/d ratios of 4 and 5, both simulation results and test data showed that hybrid joints were inferior to bolted joints. The analytical methodology presented in this paper offers a valuable reference for future analysis and design of composite joints.</p></div>","PeriodicalId":468,"journal":{"name":"Applied Composite Materials","volume":"31 5","pages":"1593 - 1624"},"PeriodicalIF":2.3,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141253439","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

Free and Forced Vibration Analysis of Carbon/Glass Hybrid Composite Laminated Plates Under Arbitrary Boundary Conditions 任意边界条件下碳/玻璃混合复合材料层压板的自由和强迫振动分析

IF 2.3 4区材料科学

Applied Composite Materials Pub Date : 2024-06-03 DOI: 10.1007/s10443-024-10235-y

Mengzhen Li, Carlos Guedes Soares, Zhiping Liu, Peng Zhang

{"title":"Free and Forced Vibration Analysis of Carbon/Glass Hybrid Composite Laminated Plates Under Arbitrary Boundary Conditions","authors":"Mengzhen Li, Carlos Guedes Soares, Zhiping Liu, Peng Zhang","doi":"10.1007/s10443-024-10235-y","DOIUrl":"10.1007/s10443-024-10235-y","url":null,"abstract":"<div><p>This paper presents the theoretical investigations on the free and forced vibration behaviours of carbon/glass hybrid composite laminated plates with arbitrary boundary conditions. The unknown allowable displacement functions of the physical middle surface are expressed in terms of standard cosine Fourier series and sinusoidal auxiliary functions to ensure the continuity of the displacement functions and their derivatives at the structural boundaries. Arbitrary boundary conditions are achieved through the introduction of an artificial spring technique. The first shear deformation theory and Lagrange equations are utilized to derive the energy expression, and the eigenvalue equations associated with free and forced vibration are obtained by Rayleigh-Ritz variational operations. Subsequently, these equations are then solved to determine the natural frequency, mode of vibration, and the steady-state displacement response under forced excitation. The new results are compared with those from references and finite element methods to verify the convergence, accuracy and efficiency of the analytical method. The effects of hybrid ratios, stacking sequences, lamination schemes, fibre orientation, boundary conditions and excitation force on the free and forced vibration behaviours of the carbon/glass hybrid composite laminated plates are analyzed in detail.</p></div>","PeriodicalId":468,"journal":{"name":"Applied Composite Materials","volume":"31 5","pages":"1687 - 1710"},"PeriodicalIF":2.3,"publicationDate":"2024-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10443-024-10235-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141253443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Nonlinear Mechanical Behavior of Glass Fiber/ Epoxy Resin Composite Under Medium and Low Strain Rates Loading 玻璃纤维/环氧树脂复合材料在中低应变速率加载下的非线性力学行为

IF 2.3 4区材料科学

Applied Composite Materials Pub Date : 2024-05-24 DOI: 10.1007/s10443-024-10233-0

Zheng Liu, Jianlin Zhong, Rui Ren, Ziruo Tang, Changfang Zhao, Xinxin Liu, Yuan Gao, Jie Ren

{"title":"Nonlinear Mechanical Behavior of Glass Fiber/ Epoxy Resin Composite Under Medium and Low Strain Rates Loading","authors":"Zheng Liu, Jianlin Zhong, Rui Ren, Ziruo Tang, Changfang Zhao, Xinxin Liu, Yuan Gao, Jie Ren","doi":"10.1007/s10443-024-10233-0","DOIUrl":"10.1007/s10443-024-10233-0","url":null,"abstract":"<div><p>The necessity to design composite building structures that are both safe and reliable has prompted the academic community to delve into the investigation of the bearing capacity of composite materials and forecast their mechanical behavior. Since most deformation of composite structures under impact is in the range of low to medium strain rate (<span>(dot{varepsilon }le 100hspace{0.33em}{s}^{-1})</span>), this paper conducted experimental study and finite element analysis (FEA) on the nonlinear mechanical behavior of glass fiber reinforced plastic (GFRP) before damage under medium and low strain rates loading. A strain rate dependent elastic-viscoplastic constitutive equation considering the tension and compression strength-difference effect was proposed based on a nonlinear elastic–plastic constitutive model. The mechanical behaviors of GFRP laminate at medium and low strain rates were obtained by writing the explicit user-defined material subroutine (VUMAT). The prediction results of FEA are in good agreement with the experimental findings. Thus, the constitutive model can be used to predict the mechanical behaviors of the GFRP building structures at medium and low strain rates.</p></div>","PeriodicalId":468,"journal":{"name":"Applied Composite Materials","volume":"31 4","pages":"1369 - 1392"},"PeriodicalIF":2.3,"publicationDate":"2024-05-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141102513","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

Experimental and Numerical Analysis of Lightweight Hybrid Composites Under Low Velocity Impact 低速冲击下轻质混合复合材料的实验和数值分析

IF 2.3 4区材料科学

Applied Composite Materials Pub Date : 2024-05-23 DOI: 10.1007/s10443-024-10237-w

Kumar Maharshi, Shivdayal Patel

{"title":"Experimental and Numerical Analysis of Lightweight Hybrid Composites Under Low Velocity Impact","authors":"Kumar Maharshi, Shivdayal Patel","doi":"10.1007/s10443-024-10237-w","DOIUrl":"10.1007/s10443-024-10237-w","url":null,"abstract":"<div><p>The experimental and numerical study of Jute—Basalt hybrid composites was performed under low-velocity impact (LVI) considering the low cost and higher specific strength and stiffness. Hybrid composites were fabricated using the vacuum infusion method to improve fiber volume fraction to reduce the air defect. The LVI tests were conducted on the Instron 9350 model at three impacting energies of 10 J, 20 J, and 30 J to study the impact force, absorbed energy, maximum displacement, and damaged area. The failure behaviour of impact-tested specimens of the natural fiber composites obtained from CT Scan was validated by three–dimensional numerical modelling using the VUMAT subroutine in ABAQUS/Explicit. The experimental and numerical results showed that the peak force and absorbed energy were significantly improved and adding basalt fabric enhanced the peak performance of jute composite. The simulation results helped to understand the delamination phenomenon which was not visible in the samples after the test. Experimental results were validated with numerical simulation results considering the 10, 20, and 30 J energy level. The peak force of B-JFRP was improved due to hybridization and the damage resistance of it could be seen as the impactor was unable to perforate at 30 J fully. The alternating stacking sequence helped in minimizing the use of basalt fabric and enhanced the overall performance of the hybrid composite. Biodegradable hybrid natural fiber composites are a promising category for developing lightweight and impact-resistant structural materials for marine applications, wind turbine, and defense industry applications.</p></div>","PeriodicalId":468,"journal":{"name":"Applied Composite Materials","volume":"31 4","pages":"1393 - 1412"},"PeriodicalIF":2.3,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141106933","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

Overview of Microwave NDT Techniques for Fibre-Reinforced Polymer Composites 纤维增强聚合物复合材料的微波无损检测技术概述

IF 2.3 4区材料科学

Applied Composite Materials Pub Date : 2024-05-23 DOI: 10.1007/s10443-024-10239-8

Zhen Li, Constantinos Soutis, Andrew Gibson

引用次数: 0

Damage-Caused Residual Curvatures in Symmetric Cross-Ply Laminates 对称交叉层压板中由损伤引起的残余曲率

IF 2.3 4区材料科学

Applied Composite Materials Pub Date : 2024-05-21 DOI: 10.1007/s10443-024-10231-2

Andrejs Pupurs, Janis Varna

{"title":"Damage-Caused Residual Curvatures in Symmetric Cross-Ply Laminates","authors":"Andrejs Pupurs, Janis Varna","doi":"10.1007/s10443-024-10231-2","DOIUrl":"10.1007/s10443-024-10231-2","url":null,"abstract":"<div><p>Thermo-mechanical response of [90<sub><i>n</i></sub>/0<sub><i>m</i></sub>]<sub><i>s</i></sub> carbon/epoxy and glass/epoxy cross-ply laminates in 4-point bending is analyzed experimentally and analytically. Intralaminar cracks in surface 90°-plies and local delaminations introduced in one of the 90°-plies at large deflections reduce the laminate bending stiffness and make the laminate asymmetric due to differences in the damage state in the layers. The latter leads to residual thermal curvature that increases with intralaminar crack density and with growing local delaminations. In the present study optical microscopy was used for crack density quantification. It was also found experimentally that small local delaminations develop in the initial stage of damage evolution and under increasing load they grow rapidly from the existing and newly created crack tips. The effect of damage on residual curvature and the bending stiffness was analyzed using an analytical method, where the concept of the effective stiffness of damaged ply is used in the classical laminate theory. Analytical results were validated with a 3-D FEM simulation of the damaged laminate in a 4-point bending test. In the literature a phenomenon that the microdamage in laminate layers causes redistribution of in-plane thermal stresses is often overlooked. The present paper shows that the used analytical approach gives an accurate description of experimental results regarding two independent sets of data: the residual curvature; and the laminate bending stiffness with evolving micro-damage. The present study also renders a better insight in the mechanics of the phenomena and allows estimation of the extent of local delaminations that is difficult to measure in tests.</p></div>","PeriodicalId":468,"journal":{"name":"Applied Composite Materials","volume":"31 6","pages":"1889 - 1906"},"PeriodicalIF":2.3,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141117963","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

Designing an End Effector and a Thickness Adaptive Compression Molding Process for Wet Fiber Placement 为湿纤维铺放设计末端执行器和厚度自适应压缩成型工艺

IF 2.3 4区材料科学

Applied Composite Materials Pub Date : 2024-05-18 DOI: 10.1007/s10443-024-10238-9

Peter A. Arrabiyeh, Anna M. Dlugaj, Maximilian Eckrich, David May

{"title":"Designing an End Effector and a Thickness Adaptive Compression Molding Process for Wet Fiber Placement","authors":"Peter A. Arrabiyeh, Anna M. Dlugaj, Maximilian Eckrich, David May","doi":"10.1007/s10443-024-10238-9","DOIUrl":"10.1007/s10443-024-10238-9","url":null,"abstract":"<div><p>Wet Fiber Placement (WFP) is a manufacturing technology for continuous fiber-reinforced composites. It serves as an alternative to Automated Fiber/Tape Placement processes, offering cost-effective machinery and the programmability advantage of 3D printers. By bypassing pre-impregnated products, WFP enables the blending of preferred resins and fibers, providing enhanced geometric flexibility and material versatility. Two major challenges go along with this process strategy: (1) the freshly impregnated rovings tend to adhere to any surface they come in contact with, while (2) the impregnated rovings are slack and must be pulled rather than pushed all the way from the creel to the point where they leave the placement system. After placement, the generated “in-line prepreg” is consolidated and cured in a compression molding process, using an elastomeric/metallic, thickness-adaptive tool that can be used to process different workpieces with different thicknesses and workpieces with locally differing thicknesses in the same mold. This paper introduces a CNC system tailored for WFP, emphasizing the end effector’s components like pultrusion rollers, dancer modules, a cutting unit, and pre-consolidation elements. Despite successful roving placement, accuracy concerns persist, suggesting the need for sensor synchronization and cutting path optimization. Initial prepreg compression molding trials showcased thickness adaptability with minimal fiber displacement, offering potential for topology optimization, albeit demanding further parameter study to enhance product quality.</p></div>","PeriodicalId":468,"journal":{"name":"Applied Composite Materials","volume":"31 4","pages":"1237 - 1258"},"PeriodicalIF":2.3,"publicationDate":"2024-05-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140961785","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