Advanced Composites Letters最新文献_第3页

Mechanical properties of coconut trunk particle/polyester composite based on alkali treatment 碱处理椰子树干颗粒/聚酯复合材料的力学性能

IF 2.4 4区材料科学

Advanced Composites Letters Pub Date : 2020-06-30 DOI: 10.1177/2633366X20935891

Van-Tho Hoang, Thanh-Nhut Pham, Y. Yum

引用次数: 2

The usability of Burger body model on determination of oriented strand boards’ creep behavior Burger体模型在确定定向刨花板蠕变行为中的可用性

IF 2.4 4区材料科学

Advanced Composites Letters Pub Date : 2020-06-30 DOI: 10.1177/2633366X20935895

N. Yildirim, S. Shaler, W. West, Ema Gajic, Russell Edgar

{"title":"The usability of Burger body model on determination of oriented strand boards’ creep behavior","authors":"N. Yildirim, S. Shaler, W. West, Ema Gajic, Russell Edgar","doi":"10.1177/2633366X20935895","DOIUrl":"https://doi.org/10.1177/2633366X20935895","url":null,"abstract":"In this work, the usability of the Burger body model (BBM) for determining the behavior of oriented strand boards (OSBs) under long-term loads was evaluated. The actual bending strain data and predicted strain data as a function of different stress levels and load durations under constant environmental conditions (25 ± 2°C and 50% relative humidity) were compared. Two test groups, short-term bending tests and long-term creep-rupture bending tests, were performed according to relevant ASTM standards. Specimens were randomly assigned to three groups and loaded at 47% (132.2 kg), 51% (137.4 kg), or 55% (154.9 kg) of the mean static short-term flexural strength. Specimen creep was monitored for 10,000 h using an automated measurement system. The four-parameter BBM parameters were obtained for all specimens at 2000-h time intervals, providing five different estimates. Measured strain values were compared with strain predictions from the BBM and with the goal of evaluating length of experiment on prediction accuracy. Each stress level provided statistical differences based on the error between the actual strain and predicted strain values. Group 3 provided minimum error compared to group 1 and group 2. The 10,000 and 8000 h loading provided the most accurate predictions compared to 6000, 4000, and 2000 h of data. Overall, the longer the actual data is collected the more accurate predictions were obtained. As a result, the BBM was found useful tool for predicting the creep behavior of OSBs under different loads and load durations. It was also shown that the increased duration of practical loading minimizes the error between the prediction. Therefore, the BBM is suggested for use predicting the creep behavior of OSBs over 8000 h load durations.","PeriodicalId":55551,"journal":{"name":"Advanced Composites Letters","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2020-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/2633366X20935895","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47658211","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: 3

Evaluation of surface roughness in drilling particle-reinforced composites 钻孔颗粒增强复合材料表面粗糙度评价

IF 2.4 4区材料科学

Advanced Composites Letters Pub Date : 2020-06-30 DOI: 10.1177/2633366X20937711

F. Ficici

{"title":"Evaluation of surface roughness in drilling particle-reinforced composites","authors":"F. Ficici","doi":"10.1177/2633366X20937711","DOIUrl":"https://doi.org/10.1177/2633366X20937711","url":null,"abstract":"Aluminum matrix composite materials being used in different sectors including automobile, aerospace, defense, and medical and are currently displacing unreinforced materials with their superior mechanical properties. The metal removal process of drilling is widely used in many structural applications. This study experimentally investigates the drilling characteristics of silicon carbide (SiCp)-reinforced Al 7075 composites produced by stir casting method. Also, two different drill materials with high-speed steel (HSS) and titanium nitride (TiN)-coated HSS carry out in drilling operation. The effect of operational parameters such as cutting speed and feed rate and materials parameters such as weight fraction of reinforcement and cutting tools on the surface roughness of drilled holes were evaluated in the drilling operations. The results of the drilling test indicate that the feed rate and cutting speed have a very strong effect on the surface roughness of matrix alloy and composite materials. The surface roughness (Ra ) values increased with increasing the feed rate and decreased with increasing the cutting speed. Under 0.10 mm/rev and 20 m/min drilling conditions and using HSS drill, surface roughness values for matrix, 5% SiC-, 10% SiC-, and 15% SiC-reinforced composites, were obtained 2.57, 2.59, 2.61, and 2.64 µm, respectively; besides, using TiN-coated HSS drill, surface roughness values were obtained 1.60, 1.63, 1.64, and 1.66 µm, respectively. An increase in the weight fraction of the abrasive SiC particle resulted in a very crucial deterioration quality of the drilled hole. TiN-coated HSS drills better performance exhibits than uncoated HSS drills for all the drilling operations about surface roughness properties. Short chip formations observed both the matrix alloy and the composite materials for two different drills in the drilling operations.","PeriodicalId":55551,"journal":{"name":"Advanced Composites Letters","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2020-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/2633366X20937711","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41871373","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: 8

The normal distribution fitting method for frequency distribution characteristics of peak arrival time of earthquake 地震峰值到达时间频率分布特征的正态分布拟合方法

IF 2.4 4区材料科学

Advanced Composites Letters Pub Date : 2020-06-29 DOI: 10.1177/2633366X20921411

Xu Han, Yunan Liu, Lihua Wang

{"title":"The normal distribution fitting method for frequency distribution characteristics of peak arrival time of earthquake","authors":"Xu Han, Yunan Liu, Lihua Wang","doi":"10.1177/2633366X20921411","DOIUrl":"https://doi.org/10.1177/2633366X20921411","url":null,"abstract":"The physical meaning of phase difference controls the occurrence time of peak values of triangular series, which can be abbreviated as peak arrival time. This article describes a method for deducing the correspondence between the energy distribution characteristics in the time domain and the peak arrival time. The variation laws of acceleration time–history curve of natural seismic wave can be transformed into its energy distribution characteristics in time domain. Based on the needs of seismic engineering, this article proposes a conversion formula to describe the relationship between the peak arrival time and the energy distribution characteristics in the time domain. To ensure that the variation laws of acceleration time–history curve of artificial seismic waves are more consistent with those of natural seismic waves, a normal-fitting annealing algorithm is proposed based on the normal-fitting method. The proposed method not only considers the frequency distribution characteristics of the peak arrival time comprehensively but also optimizes the fitting parameters according to the actual situation. The results of all the experimental cases verify the rationality and reliability of the proposed method.","PeriodicalId":55551,"journal":{"name":"Advanced Composites Letters","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2020-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/2633366X20921411","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42025674","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

Analytical solution for vibration characteristics of rotating graphene nanoplatelet-reinforced plates under rub-impact and thermal shock 旋转石墨烯纳米片增强板在摩擦冲击和热冲击下振动特性的解析解

IF 2.4 4区材料科学

Advanced Composites Letters Pub Date : 2020-06-26 DOI: 10.1177/2633366X20933651

T. Zhao, Yu Xuan Wang, Honggang Pan, Xiang-sheng Gao, Yi Cai

{"title":"Analytical solution for vibration characteristics of rotating graphene nanoplatelet-reinforced plates under rub-impact and thermal shock","authors":"T. Zhao, Yu Xuan Wang, Honggang Pan, Xiang-sheng Gao, Yi Cai","doi":"10.1177/2633366X20933651","DOIUrl":"https://doi.org/10.1177/2633366X20933651","url":null,"abstract":"This article presents an analytical investigation on vibration characteristics of rotating graphene nanoplatelet (GPL)-reinforced plates subjected to rub-impact and thermal shock. The effective material properties are assumed to vary continuously and smoothly along the thickness direction of the plate and are determined via the Halpin–Tsai micromechanics model together with the rule of mixture. Considering the gyroscopic effect, the equations of motion are derived by adopting the Hamilton’s principle based on the Kirchhoff’s plate theory. Then, the Galerkin method and the small parameter perturbation method are utilized to obtain the free and forced vibration results for the rotating plate. A detailed parametric study is conducted to examine the effects of the GPL weight fraction, GPL distribution pattern, length-to-thickness ratio and length-to-width ratio of GPLs, and the rotating speed on free vibration characteristics of the nanocomposite plate. Attention is also given to the influences of the GPL weight fraction, thermal flow, and friction coefficient on forced vibration responses of the plate. The obtained results can play a role in the design of a rotating GPL-reinforced plate structure to achieve significantly improved mechanical performance.","PeriodicalId":55551,"journal":{"name":"Advanced Composites Letters","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2020-06-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/2633366X20933651","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49305624","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: 14

Online visual monitoring and ultrasonic feedback detection in the ultrasonic precision bonding of polymers 聚合物超声精密粘接中的在线视觉监测和超声反馈检测

IF 2.4 4区材料科学

Advanced Composites Letters Pub Date : 2020-06-25 DOI: 10.1177/2633366X20932584

Yibo Sun, Yuqi Feng, Pengfei Hu, Xingbai Zhao, Xinhua Yang, Guoxiong Wu

{"title":"Online visual monitoring and ultrasonic feedback detection in the ultrasonic precision bonding of polymers","authors":"Yibo Sun, Yuqi Feng, Pengfei Hu, Xingbai Zhao, Xinhua Yang, Guoxiong Wu","doi":"10.1177/2633366X20932584","DOIUrl":"https://doi.org/10.1177/2633366X20932584","url":null,"abstract":"Ultrasonic bonding is a convenient bonding technology, which features sufficient cleanliness, high efficiency, no need for additional bonding aids, and other outstanding advantages. In recent years, it has been introduced into the field of the micro–nano assembly of polymer micro–nano devices, but it is still difficult for current ultrasonic bonding technology to meet the accuracy requirements of the micro–nano assembly. To improve the control accuracy of the hot-melt interface in the process of ultrasonic bonding, an online hot-melt interface monitoring method and an online ultrasonic transmission efficiency detection method are proposed in this article. With these detection methods, the real-time monitoring of the hot-melt interface can be realized on the basis of machine vision, while high-frequency dynamic force sensors can be used to detect the ultrasonic vibration transmitted from the ultrasonic horn to the anvil. Based on these methods, a functional anvil based on visual monitoring and ultrasonic detection is developed, the finite element method has been used to analyze the transmission characteristics of ultrasonic vibration, and experiments are carried out regarding online detection in the process of ultrasonic bonding. The results show that this system can realize the online detection of the hot-melt interface and ultrasonic transmission information, providing a new control method for ultrasonic bonding technology.","PeriodicalId":55551,"journal":{"name":"Advanced Composites Letters","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2020-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/2633366X20932584","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45653760","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: 1

Diffusion welding of stainless steel 304L/Monel K-500 composite materials produced with different methods 不同方法生产不锈钢304L/蒙乃尔K-500复合材料的扩散焊

IF 2.4 4区材料科学

Advanced Composites Letters Pub Date : 2020-06-19 DOI: 10.1177/2633366X20917983

Haluk Kejanli

{"title":"Diffusion welding of stainless steel 304L/Monel K-500 composite materials produced with different methods","authors":"Haluk Kejanli","doi":"10.1177/2633366X20917983","DOIUrl":"https://doi.org/10.1177/2633366X20917983","url":null,"abstract":"The stainless steel 304L (commercially supplied) and Monel K-500 that was prepared through cold pressing of metal matrix composite materials powder mixtures were joined by diffusion welding. Welding was performed under uniaxial compression using the 50 µm-thick nickel (Ni) and aluminum (Al) 2024 interlayers under 3 MPa at 950–980°C for 60 min in an argon gas atmosphere. After welding, the diffusion and intermediate zones of the samples were characterized using X-ray diffraction, optical microscopy, scanning electron microscopy, and energy-dispersive spectrometry analysis. As evaluating the diffusion zone with interlayer, it was determined that different interlayers expanded due to increasing temperature of the diffusion area. Interlayers expanded more on the K-500 side and relatively less on the 304L side. On the other hand, when samples with Ni interlayers were examined, high amount of Ni contained by both base material (304L) and interlayer led to the formation of rich Ni phases in the diffusion side. The brittle FeNi, Fe3Ni2, CuNi, Cu9Si, Cu0,81Ni0,19, Fe0,64Ni0,36, CrNi, Cr2Ni3, FeNi3, FeCu4, and Al0.71Cr0.3Fe17.65, which were identified to form irregularity in the diffusion zone. These intermetallic phases increased the hardness and significantly decreased the ductility of different material couples joined by diffusion welding. As a result, the microhardness and lap shear tests were applied to specimens to characterize the mechanical properties of the joint zones. The maximum hardness and maximum lap shear values were obtained at joint that made with the Al interlayer at 980°C as 432.8 HV and 165 MPa.","PeriodicalId":55551,"journal":{"name":"Advanced Composites Letters","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2020-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/2633366X20917983","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48662425","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: 3

Functionally graded wood filler–recycled polypropylene composite: Effect of mechanical loading on deflection of cantilever beam 功能梯度木材填料-再生聚丙烯复合材料：机械载荷对悬臂梁挠度的影响

IF 2.4 4区材料科学

Advanced Composites Letters Pub Date : 2020-06-19 DOI: 10.1177/2633366X20922856

M. Bahri, M. Ratnam, H. Khalil

{"title":"Functionally graded wood filler–recycled polypropylene composite: Effect of mechanical loading on deflection of cantilever beam","authors":"M. Bahri, M. Ratnam, H. Khalil","doi":"10.1177/2633366X20922856","DOIUrl":"https://doi.org/10.1177/2633366X20922856","url":null,"abstract":"Structures made from natural fiber–polypropylene composite material usually have uniform mechanical properties throughout. In some applications, such as in products with snap-fit assembly, it is desirable to have lower stiffness in some parts of the structure while having significantly higher stiffness at other parts of the same structure. In this research, the effect of changing the material arrangement and composition in a cantilever beam made from functionally graded natural filler–recycled polypropylene (FGNF-RPP) composite on the deflection behavior was investigated under static mechanical loads. The composite material was made using 10%, 20%, 30%, and 40% waste wood sawdust as a filler and arranged in different sequences to fabricate beams having 30–40, 20–30–40, and 10–20–30–40 hybrid sections along the length. The deflection behavior was investigated by both experiment and finite element modeling. The results showed that the 30–40 setup produced the least deflection when the 40% end of the beam was fixed, while the 10–20–30–40 setup produced the highest stiffness when fixed at the 40% section. The study has shown that the FGNF-RPP structure can be custom-designed to obtain different stiffness along the same structure, thus making it possible to design products with varying stiffness.","PeriodicalId":55551,"journal":{"name":"Advanced Composites Letters","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2020-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/2633366X20922856","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44603467","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: 3

Research on an electromagnetic device and pressuring force for measuring the depth of borehole while drilling the bone 钻骨时测量钻孔深度的电磁装置及压力的研究

IF 2.4 4区材料科学

Advanced Composites Letters Pub Date : 2020-06-19 DOI: 10.1177/2633366X20933280

Xuan Wang, F. You, Jian-ping Hong, Wang Zhou

{"title":"Research on an electromagnetic device and pressuring force for measuring the depth of borehole while drilling the bone","authors":"Xuan Wang, F. You, Jian-ping Hong, Wang Zhou","doi":"10.1177/2633366X20933280","DOIUrl":"https://doi.org/10.1177/2633366X20933280","url":null,"abstract":"A device for measuring the depth of the borehole base on the magnetic grid during orthopedic surgery is proposed in this article. It consists of a magnetic grid, winding sleeve, two Hall sensors, and control circuitry. The magnetic grid comprises permanent magnets and coil windings. The device fixes on the electric hand drill and works during the surgical operation. An axial pressure keeps the shaft end of the magnetic grid in contact with the surface of the bone or the plate steadily during the electric handheld drilling of the bone. The pressure is an electromagnetic force generated by the interaction between the permanent magnets and the coil windings. The force should be large enough to support the weight of the magnetic grid and a low fluctuation is maintained. The larger the device, the higher the electromagnetic force will be generated. The electromagnetic force is simulated and obtained with the software of Maxwell. The factors that influence the force were the permanent magnet, and the others are the length of permanent magnet and the turns on the coil. The results of orthogonal simulation show that the primary factor is the diameter of the permanent magnet. The optimized parameters include the following: the diameter of the magnet is 7 mm, length of each permanent magnet is 5 mm, and the turns on the coil are 80. Then the pressure force range is approximately 0.485–0.716 N, and the variance of the force is 0.137.","PeriodicalId":55551,"journal":{"name":"Advanced Composites Letters","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2020-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/2633366X20933280","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46869008","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

Theoretical investigation on nonlinear dynamic characteristic of spindle system 主轴系统非线性动态特性的理论研究

IF 2.4 4区材料科学

Advanced Composites Letters Pub Date : 2020-06-10 DOI: 10.1177/2633366X20911665

Xiang-sheng Gao, Zeyun Qin, Min Wang, Yu-ya Hao, Zi-yi Liu

{"title":"Theoretical investigation on nonlinear dynamic characteristic of spindle system","authors":"Xiang-sheng Gao, Zeyun Qin, Min Wang, Yu-ya Hao, Zi-yi Liu","doi":"10.1177/2633366X20911665","DOIUrl":"https://doi.org/10.1177/2633366X20911665","url":null,"abstract":"Radial gap will occur at the spindle–tool holder interface when the spindle rotates at high speed. Therefore, the radial gap will lead to the nonlinear stiffness at the spindle–tool holder connection, and it will have effects on dynamic characteristic of spindle system. In this research, classic elastic theory is adopted to evaluate the nonlinear stiffness at spindle–tool holder interface. Dynamic model of spindle system is established considering the nonlinear stiffness at spindle–tool holder interface. The fourth-order Runge–Kutta method is applied to solve dynamic response of the spindle system. On that basis, effects of drawbar force on dynamic characteristic of the system are investigated. Considering the cutting force, effects of rotational speed on dynamic response of cutter tip are also discussed. The numerical results show that the drawbar force has effects on vibration mode of cutter tip. Chaotic motion will not occur within the range concerned in engineering practice. Considering the cutting force, the motion of cutter tip turns to be chaotic. The proper rotational speed and drawbar force should be chosen to ensure a stable cutting according to the response of cutter tip.","PeriodicalId":55551,"journal":{"name":"Advanced Composites Letters","volume":null,"pages":null},"PeriodicalIF":2.4,"publicationDate":"2020-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1177/2633366X20911665","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47299415","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