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Comprehensive evaluation of morphology-property relationship in porous zirconia bioceramics at different levels of scale hierarchy 全面评估不同尺度等级的多孔氧化锆生物陶瓷的形态-性能关系
IF 2.9 3区 材料科学 Q1 Engineering Pub Date : 2023-12-26 DOI: 10.1080/09243046.2023.2299635
Elena I. Senkina, Aleksandr S. Lozhkomoev, Svetlana P. Buyakova, Andrey A. Miller, Ales S. Buyakov
The success of replacement of damaged bone tissue by porous ceramic scaffolds is determined not only by biochemical compatibility of the artificial material, but also by a set of interrelated morph...
用多孔陶瓷支架替代受损骨组织的成功与否,不仅取决于人工材料的生化相容性,还取决于一系列相互关联的形态。
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引用次数: 0
Effects of fiber orientation and resin-rich layers in carbon fiber reinforced thermoplastics on electromagnetic induction testing 碳纤维增强热塑性塑料中的纤维取向和富树脂层对电磁感应测试的影响
IF 2.9 3区 材料科学 Q1 Engineering Pub Date : 2023-12-12 DOI: 10.1080/09243046.2023.2293603
Wataru Matsunaga, Satoshi Imai, Yoshihiro Mizutani, Akira Todoroki
In this study, we evaluated the effects of the fiber orientation and the presence of resin-rich layers on electromagnetic induction testing (EIT) of carbon fiber reinforced thermoplastics (CFRTPs)....
在这项研究中,我们评估了纤维取向和富树脂层的存在对碳纤维增强热塑性塑料(CFRTPs)电磁感应测试(EIT)的影响....。
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引用次数: 0
Techno-economic analysis of type III and IV composite hydrogen storage tanks for fuel cell vehicles 燃料电池汽车用III型和IV型复合储氢罐的技术经济分析
IF 2.9 3区 材料科学 Q1 Engineering Pub Date : 2023-12-01 DOI: 10.1080/09243046.2023.2278258
Hyun Kyu Shin, Sung Kyu Ha
The hydrogen gas storage tank market includes passenger cars and heavy-duty trucks. However, there is insufficient economic analysis of these tanks, which is the key element for achieving market ex...
氢气储罐市场包括乘用车和重型卡车。然而,对这些储罐的经济分析不足,这是实现市场效益的关键因素。
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引用次数: 0
3-D modeling of automatic pressure gelation process for manufacturing gas insulated switchgear spacer using bio-based epoxy composite 生物基环氧复合材料气体绝缘开关柜垫片自动压力胶凝过程的三维建模
IF 2.9 3区 材料科学 Q1 Engineering Pub Date : 2023-11-23 DOI: 10.1080/09243046.2023.2283679
Sangmook Lee
In existing power devices, various insulating parts are manufactured with petroleum-based epoxy resin. However, as petroleum-based resources are gradually depleted and environmental problems have e...
在现有的电力装置中,各种绝缘部件都是用石油基环氧树脂制造的。然而,随着以石油为基础的资源逐渐枯竭,环境问题日益严重。
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引用次数: 0
Erosion resistant effects of protective films for wind turbine blades 风力涡轮机叶片保护膜的抗侵蚀效果
IF 2.9 3区 材料科学 Q1 Engineering Pub Date : 2023-11-21 DOI: 10.1080/09243046.2023.2280353
Limin Bao, Yuya Tanasawa, Jian Shi, Ye Sun
Over the course of many years of use, impingement wear from dust, sand, and other materials can damage wind turbine blades, necessitating repairs and other maintenance work. Recently, wind turbine ...
在多年的使用过程中,灰尘,沙子和其他材料的撞击磨损会损坏风力涡轮机叶片,需要维修和其他维护工作。最近,风力涡轮机…
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引用次数: 0
Fabrication of multi-layer radar absorbing structures based on continuous fiber 3D printing and thickness correction method 基于连续光纤3D打印和厚度校正方法的多层雷达吸波结构制造
IF 2.9 3区 材料科学 Q1 Engineering Pub Date : 2023-11-21 DOI: 10.1080/09243046.2023.2283681
Do-Hyeon Jin, Jong-Min Hyun, Jung-Ryul Lee, Joon-Mo Ahn
Three-dimensional (3D) printing technology has revolutionized the fabrication of complex geometries, including electromagnetic wave absorbers. In this study, the multilayer radar absorbing structur...
三维(3D)打印技术已经彻底改变了复杂几何形状的制造,包括电磁波吸收器。在本研究中,多层雷达吸波结构…
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引用次数: 0
Toughened single-lap joints by composite bondline of adhesive and double-sided tape 采用胶粘剂与双面胶带复合粘结线增韧单搭接接头
IF 2.9 3区 材料科学 Q1 Engineering Pub Date : 2023-11-20 DOI: 10.1080/09243046.2023.2284057
Kosuke Takahashi, Zhantong Sun, Takuma Kikuzawa, Kounosuke Shimamura, Sourabh Jagrat, Nao Fujimura, Takashi Nakamura
This study proposes the novel manufacturing method of adhesively bonded joint with double-sided tapes by following the concept of bi-adhesive bondline. The stress concentration at the ends of the b...
本研究以双面胶粘接线为概念,提出了双面胶粘接接头的新制造方法。b末端的应力集中…
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引用次数: 0
Experimental characterization of multiscale solidification in thermoset CFRP during gelation for flow and stress modeling 热固性碳纤维布凝胶化过程中多尺度凝固的实验表征及其流动和应力模拟
3区 材料科学 Q1 Engineering Pub Date : 2023-11-12 DOI: 10.1080/09243046.2023.2279001
Yuta Naito, Christophe Mobuchon, Anoush Poursartip, Masaaki Nishikawa, Masaki Hojo
AbstractTwo types of flow mechanisms consisting of unidirectionally arrayed fibers and uncured thermoset resin exist in prepreg materials. These mechanisms are percolation flow where resin flows out of the gaps between fibers, and shear flow where resin and fibers flow together. Based on our previous study, we assumed that percolation flow is controlled by the rheology of the matrix resin, whereas shear flow is controlled by the rheology of prepreg. Based on this assumption, we experimentally evaluated the ‘multiscale’ solidification (solidification of matrix resin and that of prepreg) process using dynamic mechanical analysis during gelation. The solidification of matrix resin was examined by observing the development of loss angle, which provides a continuous description of the solidification process. On the other hand, the solidification of prepreg was characterized by analyzing the relationship between the shear storage modulus of prepreg and that of the matrix resin. Finally, we examined the difference in the solidification process between prepreg and matrix resin during gelation.Keywords: Thermoset prepregrheological propertiesgelationphase transition;process modeling Disclosure statementNo potential conflict of interest was reported by the author(s).Additional informationFundingThis work was supported by JSPS KAKENHI Grant Number JP17H03144/JP20H02028. This research was partially supported by JSPS KAKENHI 23H01604. This work was supported by Council for Science, Technology and Innovation (CSTI), Cross-ministerial Strategic Innovation Promotion Program (SIP) ‘“Materials Integration” for revolutionary design system of structural materials’ (Funding agency: JST).
摘要预浸料中存在单向排列纤维和未固化热固性树脂两种流动机制。这些机制是树脂从纤维间隙流出的渗透流动,以及树脂和纤维一起流动的剪切流动。根据我们之前的研究,我们假设渗透流动是由基体树脂的流变性控制的,而剪切流动是由预浸料的流变性控制的。基于这一假设,我们通过实验评估了凝胶过程中的“多尺度”固化(基体树脂和预浸料的固化)过程。通过观察损失角的发展来考察基体树脂的凝固过程,从而对固化过程进行了连续的描述。另一方面,通过分析预浸料的剪切储存模量与基体树脂的剪切储存模量之间的关系,表征预浸料的凝固过程。最后,我们考察了预浸料和基质树脂在凝胶化过程中固化过程的差异。关键词:热固性预流变特性凝胶相变过程建模公开声明作者未报告潜在的利益冲突。本工作由JSPS KAKENHI资助号JP17H03144/JP20H02028支持。本研究得到了JSPS KAKENHI 23H01604的部分支持。本研究得到了科学技术与创新委员会(CSTI)、跨部门战略创新促进计划(SIP)“结构材料革命性设计体系的材料集成”(资助机构:JST)的支持。
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引用次数: 0
Whipping motion of airplane composite fan blades due to bird strike 鸟击时飞机复合材料风扇叶片的摆动运动
3区 材料科学 Q1 Engineering Pub Date : 2023-11-09 DOI: 10.1080/09243046.2023.2280347
Sho Kajihara, Ryo Higuchi, Takahira Aoki, Shinya Fukushige
AbstractComposite fan blades made of CFRP have been developed and investigated to reduce the weight of aircraft engines. Aircraft fan blades are subjected to high-speed impact by foreign objects, such as bird strikes. Because CFRP has lower impact resistance than metal materials, it is necessary to focus on possible failure not only at the impact point but also at the tip and trailing edge of the fan blade. This paper developed a finite element analysis model of fan blade geometry and investigated the dynamic deformation that may induce peripheral fracture when a bird strike occurs on a composite fan blade. Natural vibration analysis and transient response analysis were performed to analyze the vibration behavior at the fan blade periphery. The natural vibration analysis showed that the vibration modes in the out-of-plane direction of the blade are of low order. In the transient response analysis, when a group of particles defined by the equation of state and the SPH method collided, a sudden deformation in the periphery, called a whipping motion, was observed immediately after the impact. The spanwise strain has a peak value at the trailing edge of the fan blade, while the chordwise strain has a peak value at the leading edge of the fan blade. Furthermore, the transient response analysis with the fan blades rotating showed an increase in the peak strain value. A comparison of the impact loads and displacements immediately below the impact indicated that the centrifugal force increased the geometric stiffness, which increased the reaction force due to the fan blade, increasing the peak value.Keywords: Finite element method (FEM)LS−DYNAsmoothed particle hydrodynamics method (SPH)natural frequency analysisdynamic transient response analysis Disclosure statementNo potential conflict of interest was reported by the author(s).
摘要为了减轻航空发动机的重量,研制了碳纤维增强塑料(CFRP)复合风扇叶片。飞机风扇叶片会受到外来物体的高速冲击,比如鸟撞。由于CFRP的抗冲击性比金属材料低,因此不仅要关注冲击点可能出现的故障,还要关注风机叶片尖端和后缘可能出现的故障。建立了复合材料风扇叶片几何结构的有限元分析模型,研究了鸟击时复合材料风扇叶片的动态变形。通过自振分析和瞬态响应分析,分析了风机叶片周边的振动特性。自振分析表明,叶片面外方向的振型为低阶振型。在瞬态响应分析中,当一组由状态方程和SPH方法定义的粒子碰撞时,在碰撞后立即观察到外围的突然变形,称为鞭打运动。展向应变的峰值在扇叶后缘,弦向应变的峰值在扇叶前缘。此外,叶片旋转时的瞬态响应分析表明,峰值应变值增加。下面的立即影响载荷和位移比较表明,离心力的影响几何刚度增加,这增加了反应部队由于风扇叶片,增加峰值。关键词:有限元法(FEM)LS - DYNAsmoothed particle hydrodynamics法(SPH)固有频率分析动态瞬态响应分析披露声明作者未报告潜在利益冲突。
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引用次数: 0
Fully analytical solution framework for general thin-walled composite beams with mixed variational approach 一般薄壁组合梁的混合变分全解析解框架
3区 材料科学 Q1 Engineering Pub Date : 2023-10-31 DOI: 10.1080/09243046.2023.2274211
Jae Seong Bae, Sung Nam Jung
AbstractA variationally consistent analytical beam model that describes the theory in a Timoshenko-Vlasov level is developed based on Reissner’s mixed variational theorem. Starting from a shell theory, all the field-governing equations (equilibrium and continuity) and the boundary conditions of the shell wall are derived in closed form, and the mixed method enables finding the explicit forms of the reactive stresses and sectional warpings which are evaluated progressively depending on the level of beam model to be analyzed. The stress recovery part is incorporated in the post-stage of the analysis to compute the layer-wise distribution of stresses over the beam cross-section. The present analysis is validated against numerous benchmark examples available in the literature, including beams with multi-layered strip section, thin-walled anisotropic box sections with elastic couplings, and two-cell airfoil section. The comparison study demonstrates excellent correlations with the results from detailed three-dimensional finite element analysis and other up-to-date beam approaches. Also presented are symbolically expressed stiffness coefficients and the sectional warping modes of coupled composite beams to demonstrate the strength of the proposed beam model.Keywords: Beamsection analysiswarpingstress recovery; stiffness matrix Nomenclature a=Local shell radius of curvatureFx=Axial force along x axisFy, Fz=Shear forces along y and z axesMx=Torsional moment about x axisMy, Mz=Bending moments about y and z axesMω=Torsional bi-momentMxx, Mss, Mxs=Bending and twisting couples of the shell wallNxx, Nss, Nxs=In-plane stress resultants of the shell wallNxn, Nsn=Transverse shear stress resultants of the shell wallU, V, W=Translational displacements of beam sectional reference origin along x, y, z axesu, v, w=Translational displacements of an arbitrary material point of beam section along x, y, z axesux, us, un=Translational displacements of the shell wall along x, s, n axesβy, βz=Sectional rotation angles about y and z axesγxn,γsn=Transverse shear strains of the shell wallγxn,γsn=Transverse shear strains of the beam in x-y, x-z planesγxs=In-plane shear strain of the shell wallisinxx,isinss=In-plane normal strains of the shell wallκxx,κss,κxs=Curvatures of the shell wallϕ=Sectional rotation angle about x axisψx, ψs=Rotation angles of the shell wall about s, x axesωx=Contour warping function along x axisSubscripts=(),x, (),s=∂()/∂x, ∂()/∂sSuperscripts=()T=Transpose of an array()−1=Inversion of an arrayDisclosure statementThe authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.Additional informationFundingThis work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2022R14A1018884). This work was supported by Korea Research Institute for defense Technology planning and advancement (KRIT) gr
摘要基于Reissner的混合变分定理,建立了一个在Timoshenko-Vlasov水平上描述理论的变分一致解析梁模型。该方法从壳层理论出发,以封闭形式导出了所有的场控制方程(平衡方程和连续方程)以及壳壁的边界条件,并根据待分析梁模型的水平逐步求出了响应应力和截面挠曲的显式形式。应力恢复部分被纳入分析的后期阶段,以计算应力在梁截面上的分层分布。目前的分析是验证了许多基准的例子,可在文献中,包括梁与多层条形截面,薄壁各向异性箱体截面与弹性联轴器,和双单元翼型截面。对比研究表明,详细的三维有限元分析和其他最新的梁方法的结果具有良好的相关性。文中还给出了组合梁的刚度系数和截面翘曲模态的符号表示,以说明所提出的组合梁模型的强度。关键词:梁截面分析;翘曲;应力恢复;名称a=局部壳曲率半径refx =沿x轴的轴向力fy, Fz=沿y轴和z轴的剪力mx =沿x轴的扭转力矩my, Mz=沿y轴和z轴的弯矩m ω=扭转双力矩mxx, Mss, Mxs=沿y轴和z轴的弯矩nxx, Nss, Nxs=沿壳壁的弯扭耦合nxx, Nss, Nxs=壳壁的面内应力值nxn, Nsn=沿壳壁的横向剪切应力u, V, W=梁截面参考原点沿x、y、z轴的平移位移u, V, W=梁截面参考原点沿x、y、z轴的平移位移u, V, V,w=梁截面任意质点沿x、y、z轴的平移位移;ux、us、un=壳壁沿x、s、n轴的平移位移;βy、βz=沿y、z轴的截面旋转角γxn、γsn=壳壁的横向剪切应变γxn、γsn=梁在x-y方向的横向剪切应变;x-z平面γxs=壳壁的面内剪切应变isinxx,isinss=壳壁的面内法向应变κxx,κss,κxs=壳壁的曲率φ =关于x轴的截面旋转角,ψs=关于s, x轴的壳壁旋转角ωx=沿x轴的轮廓弯曲函数subscripts =(),x, (),s=∂()/∂x,∂()/∂sSuperscripts=()T=数组的转置()−1=数组的反转披露声明作者声明他们没有已知的竞争经济利益或个人关系,这些利益或关系可能会影响本文所报告的工作。本研究由韩国政府(MSIT)资助的韩国国家研究基金会(NRF)资助(No. 2022R14A1018884)。这项工作由韩国政府(DAPA(国防采办计划管理局)(21-107-E00-007, 2023))资助的韩国国防技术规划与进步研究所(KRIT)资助。这篇论文是建国大学2022年休假教师研究支援计划的一部分。
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Advanced Composite Materials
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