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Journal articles on the topic 'Macro-composite'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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1

Varghese, Ronnie, Shree Narayanan, Donald Leber, Ravindranath Viswan, Mingkai Mu, Mohan Sanghadasa, and Shashank Priya. "Magnetoelectric macro fiber composite." Sensors and Actuators A: Physical 235 (November 2015): 64–70. http://dx.doi.org/10.1016/j.sna.2015.09.033.

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2

O'Neill, Laura D., Haifei Zhang, and Darren Bradshaw. "Macro-/microporous MOF composite beads." Journal of Materials Chemistry 20, no. 27 (2010): 5720. http://dx.doi.org/10.1039/c0jm00515k.

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3

Naouar, Naim, Julien Colmars, and Philippe Boisse. "Meso-macro FE Modelling of Composite Forming." Procedia Manufacturing 47 (2020): 74–79. http://dx.doi.org/10.1016/j.promfg.2020.04.137.

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4

Hu, Kai-ming, Hua Li, and Li-Hua Wen. "Experimental study of axial-compressed macro-fiber composite bimorph with multi-layer parallel actuators for large deformation actuation." Journal of Intelligent Material Systems and Structures 31, no. 8 (March 13, 2020): 1101–10. http://dx.doi.org/10.1177/1045389x20910262.

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Piezoelectric bimorphs have a promising application in morphing micro air vehicles; however, increasing the actuation displacement is a difficult point. Axial compression can be used to increase the deformation of the piezoelectric bimorph. Compared with piezoelectric ceramics, macro fiber composites offer higher flexibility. In this article, a large displacement actuator of axial-compressed macro fiber composite bimorph is proposed. A multi-layer parallel scheme of macro fiber composite bimorphs is presented to increase the output torque of piezoelectric bimorph within a limited space. The actuation performance of the axial-compressed macro fiber composite bimorph and its multi-layer parallel scheme are verified through quasi-static experiment and displacement tracking control test. The experimental results show that the end-free rotations of both the axial-compressed macro fiber composite bimorph and its multi-layer scheme achieve ±8.1°, which is 60% higher than that of a piezoelectric ceramics bimorph with the same length. The blocking torque of the single-layer macro fiber composite bimorph is 0.028 Nm. The proposed parallel bimorphs method can magnify output torques. In addition, the axial-compressed macro fiber composite bimorph can accurately track any displacement signals in the range of its actuation. It is a continuous and controllable piezoelectric bimorph with large displacement.

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5

Yu, Caofeng, Zhuo Chen, Meijun Xiong, Yu Wang Rui Shi, and Xiaoxiang Sun. "Magnetic Field Model of Macro-motion of Coaxial Integrated Macro-micro Composite Actuator." Journal of Magnetics 26, no. 1 (March 31, 2021): 79–86. http://dx.doi.org/10.4283/jmag.2021.26.1.079.

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6

Hyun Jeong Song, Young-Tai Choi, Norman M. Wereley, and Ashish S. Purekar. "Energy Harvesting Devices Using Macro-fiber Composite Materials." Journal of Intelligent Material Systems and Structures 21, no. 6 (March 2010): 647–58. http://dx.doi.org/10.1177/1045389x10361633.

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7

Mallouli, Marwa, and Mnaouar Chouchane. "Piezoelectric energy harvesting using macro fiber composite patches." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 234, no. 21 (April 26, 2020): 4331–49. http://dx.doi.org/10.1177/0954406220920321.

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Over the last decade, vibration energy harvesting has received substantial attention of many researchers. Piezoelectric materials are able to capture energy from ambient vibration and convert it into electricity which can be stored in batteries or utilized to power small electronic devices. In order to benefit from the 33-mode of the piezoelectric effect, interdigitated electrodes have been utilized in the design of macro fiber composites which are made of piezoelectric fibers of square cross sections embedded into an epoxy matrix material. This paper presents an analytical model of a macro fiber composite bimorph energy harvester using the 33-mode. The mixing rule is applied to determine the equivalent and homogenized properties of the macro fiber composite structures. The electromechanical properties of a representative volume element composed of piezoelectric fibers and an epoxy matrix between two successive interdigitated electrodes are coupled with the overall electro-elastodynamics of the harvester utilizing the Euler–Bernoulli theory. Macro fiber composite bimorph cantilevers with diverse widths are simulated for power generation when a resistive shunt loading is applied. Stress components in the Kapton layers, which are typically a part of any macro fiber composite patch, and in the bonding layers have been included in the model contrary to previously published studies. Variable tip mass, attached at the free end of the beam, is utilized in this paper to tune the resonance frequency of the harvester. The generated power at the fundamental short circuit and open circuit resonance frequencies of harvesters having three different widths is analyzed. It has been observed that higher electrical outputs are produced by the wider macro fiber composite bimorph using (M8528-P1 patches).

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8

Guo, Xiangying, Shuaibo Wang, and Wei Zhang. "Experimental Exploration of Macro-fiber Composite Morphing Wing." IOP Conference Series: Materials Science and Engineering 472 (February 18, 2019): 012024. http://dx.doi.org/10.1088/1757-899x/472/1/012024.

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9

Bilgen, Onur, Kevin B. Kochersberger, Daniel J. Inman, and Osgar J. Ohanian III. "Macro-Fiber Composite actuated simply supported thin airfoils." Smart Materials and Structures 19, no. 5 (March 31, 2010): 055010. http://dx.doi.org/10.1088/0964-1726/19/5/055010.

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10

Zhang, Jiarui, Jianwei Tu, Fangpeng Lai, Wei Luo, and Chenfei Zhu. "Study on Macro-fiber Composite Coupled-Plate Structures." IOP Conference Series: Materials Science and Engineering 269 (November 2017): 012046. http://dx.doi.org/10.1088/1757-899x/269/1/012046.

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11

Haghi, Nakisa, Siamak Epackachi, and Mohammad Taghi Kazemi. "Macro modeling of steel-concrete composite shear walls." Structures 23 (February 2020): 383–406. http://dx.doi.org/10.1016/j.istruc.2019.10.018.

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12

Petrolito, J., and B. W. Golley. "Macro element analysis of composite beam-slab systems." Computers & Structures 33, no. 1 (January 1989): 139–48. http://dx.doi.org/10.1016/0045-7949(89)90136-3.

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13

Eyssa, Y. M., P. Pernambuco Wise, H. J. Schneider-Muntau, M. Van Cleemput, and H. Jones. "Comparative analysis of micro-composite and macro-composite conductors for pulse magnets." IEEE Transactions on Magnetics 32, no. 4 (July 1996): 2462–65. http://dx.doi.org/10.1109/20.511371.

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14

Latalski, J., F. Georgiades, and J. Warmiński. "Rational Placement of a Macro Fibre Composite Actuator in Composite Rotating Beams." Journal of Physics: Conference Series 382 (August 22, 2012): 012021. http://dx.doi.org/10.1088/1742-6596/382/1/012021.

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15

Devi Dwi Wulandari, Novi Puspitasari, and Ana Mufida. "Pengaruh Inflasi, Nilai Tukar, Dan Suku Bunga Terhadap Indeks Harga Saham Gabungan Di Bursa Efek Negara-Negara ASEAN." RELASI : JURNAL EKONOMI 16, no. 1 (January 31, 2020): 164–78. http://dx.doi.org/10.31967/relasi.v16i1.346.

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The stock market of ASEAN at present has experienced various of development rapidly on one side, but on the other side also extremely vulnerable to influence various changes in macro economy, social, and political in the country and overseas. Macro economy conditions can influence composite stock price index. Indicators of macro economy are chosen in research is inflation, exchange rate, and interest rate. The three is part of the key variables of macro economy that can be used to see the activity of a country’s economy. This research analyzed the influence of third macro economy variables to composite stock price index in five ASEAN countries namely Indonesia, Malaysia, Singapore, Philippines, and Thailand were using analysis multiple linear regression with research’s periode January 2014 up to December 2016. Results showing that partially, only exchange rate which have significant effect on composite stock price index, while inflation and interest rate has no significant effect on composite stock price index. Simultaneously the inflation, exchange rate, and interest rate equally had a significant effect on the composite stock price index, but only able to explain as much as 19,1 %. This research is only use 3 economy variables. Further research is expected to add other variables considered more potential.

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16

Guo, Jun, Ran Guo, and Wen Hai Gai. "Simulation of Particle Reinforced Composite Materials in Macro- and Meso-Scales." Applied Mechanics and Materials 444-445 (October 2013): 37–44. http://dx.doi.org/10.4028/www.scientific.net/amm.444-445.37.

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A simulation method of macro-and meso-scales is developed for particle reinforce composite materials. The two-scale modeling based on homogenization theory enables to formulate the macro scale problem with Finite Element Method (FEM), while the meso-scale one with Voronoi Cell Finite Element Method (VCFEM). Dangerous regions are identified in macro scale computing period, which lately be meshed into Voronoi Cells in meso-scale period to get a more accurate solution. Representative numerical examples are presented to demonstrate the capability of the proposed two-scale analysis method of particulate reinforce composite materials.

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17

Zhou, Jian, Minglong Xu, and Zhichun Yang. "Aeroelastic stability analysis of curved composite panels with embedded Macro Fiber Composite actuators." Composite Structures 208 (January 2019): 725–34. http://dx.doi.org/10.1016/j.compstruct.2018.10.035.

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18

Hamed, Y. S., Ali Kandil, and José Tenreiro Machado. "Utilizing Macro Fiber Composite to Control Rotating Blade Vibrations." Symmetry 12, no. 12 (November 30, 2020): 1984. http://dx.doi.org/10.3390/sym12121984.

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This work applies an active control algorithm, using a macro fiber composite (MFC) to mitigate the unwanted vibrations of a rotating blade. The algorithm is a second-order oscillator, having the positive displacement signal of the blade for input and the suitable control force to actuate the blade for output. This oscillator is linearly coupled with the blade, having in mind that their natural frequencies must be in the vicinity of each other. The rotating blade is modeled by representing two vibrational directions that are linearly coupled. An asymptotic analysis is considered to understand the resulting nonlinear phenomena. Several responses are included to portray the dynamical behavior of the system under control. From the results, we observe the asymmetry between the blade’s vibrational directions. Moreover, a verification is included for comparing the analytical and numerical results.

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19

Ju, Suna, Song Hee Chae, Yunhee Choi, and Chang-Hyeon Ji. "Macro fiber composite-based low frequency vibration energy harvester." Sensors and Actuators A: Physical 226 (May 2015): 126–36. http://dx.doi.org/10.1016/j.sna.2015.02.025.

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20

Gao, Fei, Gaoyu Liu, Brendon Lik-Hang Chung, Hugo Hung-Tin Chan, and Wei-Hsin Liao. "Macro fiber composite-based energy harvester for human knee." Applied Physics Letters 115, no. 3 (July 15, 2019): 033901. http://dx.doi.org/10.1063/1.5098962.

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21

Kang, Yong-Gang, and Jim Song. "Structure and Compression Behavior of Macro-composite Starch Foams." Journal of Cellular Plastics 45, no. 1 (January 2009): 33–49. http://dx.doi.org/10.1177/0021955x08099931.

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22

Mańka, Michał, Mateusz Rosiek, Adam Martowicz, Tadeusz Stepinski, and Tadeusz Uhl. "Lamb wave transducers made of piezoelectric macro-fiber composite." Structural Control and Health Monitoring 20, no. 8 (October 8, 2012): 1138–58. http://dx.doi.org/10.1002/stc.1523.

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23

Mańka, Michał, Adam Martowicz, Mateusz Rosiek, Tadeusz Stepinski, and Tadeusz Uhl. "Tunable interdigital transducers made of piezoelectric macro-fiber composite." Smart Materials and Structures 25, no. 11 (October 18, 2016): 115022. http://dx.doi.org/10.1088/0964-1726/25/11/115022.

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24

Kovalovs, A., E. Barkanov, and S. Gluhihs. "Active control of structures using macro-fiber composite (MFC)." Journal of Physics: Conference Series 93 (December 1, 2007): 012034. http://dx.doi.org/10.1088/1742-6596/93/1/012034.

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25

Williams, R. Brett, Daniel J. Inman, and W. Keats Wilkie. "TEMPERATURE-DEPENDENT THERMOELASTIC PROPERTIES FOR MACRO FIBER COMPOSITE ACTUATORS." Journal of Thermal Stresses 27, no. 10 (October 2004): 903–15. http://dx.doi.org/10.1080/01495730490498386.

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26

Li Shuxia, Zhao Xin, and zhang Xibao. "A composite model of macro-economic functioning of China." Computers & Industrial Engineering 27, no. 1-4 (September 1994): 313–16. http://dx.doi.org/10.1016/0360-8352(94)90298-4.

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27

Altan, Mihrigul, Meral Bayraktar, and Burak Yavuz. "Manufacturing polymer/metal macro-composite structure for vibration damping." International Journal of Advanced Manufacturing Technology 86, no. 5-8 (January 18, 2016): 2119–26. http://dx.doi.org/10.1007/s00170-015-8259-8.

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28

Dashti, B., F. Al-Awadi, R. AlKandari, A. Ali, and J. Al-Otaibi. "Macro- and microelements contents of 32 Kuwaiti composite dishes." Food Chemistry 85, no. 3 (May 2004): 331–37. http://dx.doi.org/10.1016/j.foodchem.2003.05.001.

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29

Altus, E., and O. Ishai. "Delamination buckling criterion for composite laminates: A macro approach." Engineering Fracture Mechanics 41, no. 5 (March 1992): 737–51. http://dx.doi.org/10.1016/0013-7944(92)90157-a.

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30

Chen, Shaojie, Dawei Yin, Huimin Liu, Bing Chen, and Ning Jiang. "Effects of coal's initial macro-cracks on rockburst tendency of rock–coal composite samples." Royal Society Open Science 6, no. 11 (November 2019): 181795. http://dx.doi.org/10.1098/rsos.181795.

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In the present study, uniaxial compression tests were conducted on sandstone–coal composite samples to investigate the effects of original macro-cracks in coal on the rockburst tendency. First, the energy dissipation theory was used to derive the elastic energy attenuation index of composite samples during uniaxial loading. Then, based on the test results obtained, the rockburst tendency of composite samples was evaluated and analysed using the uniaxial compressive strength and elastic energy attenuation index. The results show that the original macro-cracks in coal deteriorated the rockburst tendency of composite samples. The original horizontal cracks had the lowest effect on the rockburst tendency, whereas the vertical penetrating cracks through the coal centre (parallel to the loading direction) displayed the greatest effect. The mechanism by which these macro-cracks weakened the rockburst tendency involved two steps: (i) changing the physical properties and energy accumulation conditions of composite samples and (ii) increasing the energy dissipation of composite samples during uniaxial loading. These aspects are important to understand the rockburst hazards induced by the structural instability and failure of the composite system of coal seam and roof rock during deep coal mining.

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31

Lampeas, G., and N. Perogamvros. "Analysis of composite bolted joints by a macro-modelling approach." International Journal of Structural Integrity 7, no. 3 (June 13, 2016): 412–28. http://dx.doi.org/10.1108/ijsi-07-2015-0023.

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Purpose – The purpose of this paper is the development and the assessment of detailed and macro-modelling methodology approaches, suitable for the analysis of composite material bolted joints. Design/methodology/approach – A benchmark single-lap, single-bolt composite joint configuration is investigated, in order to demonstrate the different joint analysis approaches which are applicable in advanced riveted/bolted parts of aeronautical structures. In particular, several joint macro-models, i.e. numerical and analytical ones, as well as a detailed three-dimensional FE solid joint representation, were developed and compared in terms of stiffness prediction, while they were validated using respective experimental results. In addition, the numerical macro-model is implemented in a full scale, multi-bolt fuselage panel in order to demonstrate its capability to efficiently predict the panel’s response under compressive loads. Findings – Good correlation was observed between the majority of the models’ predictions and the relative experimental data regarding the lap joint configuration, while the simplified numerical macro-model showed some discrepancies due to the contact instabilities, which, however, may be accepted taking into account the remarkable solution time reductions. In the same manner, the FE macro-model illustrates sufficient accuracy in the prediction of the panel’s response, while, simultaneously, it maintains a low CPU time. Originality/value – The present study is part of Nikolaos Perogamvros’ doctoral thesis, an original research work. There are very limited literature papers which include the development and the assessment of different efficient and detailed composite joint analysis approaches, regarding their accuracy and efficiency in the stiffness prediction of a composite bolted joint configuration, as well as on the prediction of a multi-bolt panel’s response.

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32

Padoin, Eduardo, Jun Sergio Ono Fonseca, Eduardo André Perondi, and Odair Menuzzi. "Optimal Placement of Piezoelectric Macro Fiber Composite Patches on Composite Plates for Vibration Suppression." Latin American Journal of Solids and Structures 12, no. 5 (May 2015): 925–47. http://dx.doi.org/10.1590/1679-78251320.

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33

Dano, M.-L., and B. Jullière. "Active control of thermally induced distortion in composite structures using Macro Fiber Composite actuators." Smart Materials and Structures 16, no. 6 (October 10, 2007): 2315–22. http://dx.doi.org/10.1088/0964-1726/16/6/035.

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34

Jia, Yu, Xueyong Wei, Liu Xu, Congsi Wang, Peiyuan Lian, Song Xue, Ahmed Al-Saadi, and Yu Shi. "Multiphysics vibration FE model of piezoelectric macro fibre composite on carbon fibre composite structures." Composites Part B: Engineering 161 (March 2019): 376–85. http://dx.doi.org/10.1016/j.compositesb.2018.12.081.

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35

Zhang, Shun-Qi, Zhan-Xi Wang, Xian-Sheng Qin, Guo-Zhong Zhao, and Rüdiger Schmidt. "Geometrically nonlinear analysis of composite laminated structures with multiple macro-fiber composite (MFC) actuators." Composite Structures 150 (August 2016): 62–72. http://dx.doi.org/10.1016/j.compstruct.2016.04.037.

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36

Li, Chun Yun, Ying Sun, and Li Chen. "Research on the Machining Methods of UHMWPE Fiber Reinforced Composite Laminates." Advanced Materials Research 291-294 (July 2011): 754–57. http://dx.doi.org/10.4028/www.scientific.net/amr.291-294.754.

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The effects of machining methods such as high pressure water jet cutting, laser cutting, mechanical cutting on the geometry accuracy,macro aspect of UHMWPE fiber reinforced epoxy composite laminates are studied.Compare the property of geometry accuracy, macro aspect after the UHMWPE fiber reinforce composites laminates, find the processing method and the optimal parameters to provide the best choice for the machining of UHMWPE reinforce composites laminates and further speed up the study of composite dynamic property.

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37

ADACHI, Kazuhiko, Park Gyuhae, and Daniel J. Inman. "Passive Piezoelectric Damping for Flexible Structures Using Shunted Macro-Fiber Composite Actuators." Proceedings of the Symposium on the Motion and Vibration Control 2003.8 (2003): 115–20. http://dx.doi.org/10.1299/jsmemovic.2003.8.115.

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38

Chang, Si Young, Han Gyoung Cho, Jin Chun Kim, Seong Hee Lee, and Byung Heum Song. "Macro-Interface Characteristics of Bimodal-Structured Al Materials Produced by Ball-Milling." Materials Science Forum 534-536 (January 2007): 821–24. http://dx.doi.org/10.4028/www.scientific.net/msf.534-536.821.

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The bimodal-structured materials composed of Al-5wt%Mg alloy and its composites reinforced with SiC and Al2O3 particles were prepared by ball-milling and subsequent compaction under the pressure of 350MPa and sintering at temperatures ranging from 973K to 1173K for 1h, 3h and 5h. The macro-interface between Al-Mg and Al-Mg/ Al2O3 composite was macroscopically well-bonded compared to that between Al-Mg and Al-Mg/SiC composite under same sintering conditions. The bonding of macro-interface became better as the sintering time and temperature increased, resulting in that the bimodal-structured materials sintered at 1173K for 5h showed the relative density of nearly 100%. In addition, the higher sintering temperature was, the more irregular macro-interface was. The microhardness of macro-interface area was in between the Al- Mg and composites, which was independent of the sintering temperature.

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39

Thomas, Peter R., Ángela Carmen Blázquez Calzada, and Kevin Gilmour. "Modeling of macro fiber composite actuated laminate plates and aerofoils." Journal of Intelligent Material Systems and Structures 31, no. 4 (December 16, 2019): 525–49. http://dx.doi.org/10.1177/1045389x19888728.

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This article investigates the modeling of macro fiber composite-actuated laminate plates with distributed actuator patches. The investigation details an analytical and finite element modeling, with experimental validation of the bending strain and deflection of an epoxy E-glass fiber composite laminate. An analytical approach is also developed to estimate the plate deflection from the experimental strain measurements. The analytical method uses direct integration of single dimensional plate bending moments obtained by strain-induced shear moments from the macro fiber composite actuators. Finite element analysis software was used with the composite laminate modeled in ANSYS ACP. The results from both analytical and numerical models show good agreement with the experimental results, with strain values agreeing within 20 ppm and the maximum difference in deflection not exceeding 0.1 mm between models. Finally, an application of the analytical model for developing morphing aerofoil designs is demonstrated.

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40

Nasser, Houssein, A. Deraemaeker, and Salim Belouettar. "Electric Field Distribution in Macro Fiber Composite Using Interdigitated Electrodes." Advanced Materials Research 47-50 (June 2008): 1173–76. http://dx.doi.org/10.4028/www.scientific.net/amr.47-50.1173.

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In this paper, an attempt has been made to understand the electric field distribution in the Representative Volume Element (RVE) of the Macro Fiber Composite (MFC) using interdigitated electrodes IDEs. Since the magnitude of the electric field within the Representative Volume Element (RVE) using the IDEs is not uniform, an electrostatic study of the electric field behavior is carried out. An approximate RVE model with conventional electrodes, which is useful for the analytical solution, has been proposed instead of the RVE model with IDEs. Finally, the results obtained by the proposed analytical solution are compared to those obtained numericaly using the RVE model with IDEs.

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41

Bilgen, Onur, Kevin B. Kochersberger, Daniel J. Inman, and Osgar J. Ohanian. "Novel, Bidirectional, Variable-Camber Airfoil via Macro-Fiber Composite Actuators." Journal of Aircraft 47, no. 1 (January 2010): 303–14. http://dx.doi.org/10.2514/1.45452.

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42

Bilgen, O., K. B. Kochersberger, and D. J. Inman. "Macro-fiber composite actuators for a swept wing unmanned aircraft." Aeronautical Journal 113, no. 1144 (June 2009): 385–95. http://dx.doi.org/10.1017/s0001924000003055.

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Abstract The purpose of the research presented here is to exploit actuation via smart materials to perform shape control of an aerofoil on a small aircraft and to determine the feasibility and advantages of smooth control surface deformations. A type of piezoceramic composite actuator known as Macro-Fiber Composite (MFC) is used for changing the camber of the wings. The MFC actuators were implemented on a 30° swept wing, 0·76m wingspan aircraft. The experimental vehicle was flown using two MFC patches in an elevator/aileron (elevon) configuration. Preliminary flight and wind-tunnel testing has demonstrated the stability and control of the concept. Flight tests were performed to quantify roll control using the MFC actuators. Lift and drag coefficients along with pitch and roll moment coefficients were measured in a low-speed, open-section wind tunnel. A vortex-lattice analysis complemented the database of aerodynamic derivatives used to analyse control response. The research, for the first time, successfully demonstrated that piezoceramic devices requiring high voltages can be effectively employed in small air vehicles without compromising the weight of the overall system.

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43

Eaton, Mark, Rhys Pullin, Karen Holford, Sam Evans, Carol Featherston, and Alex Rose. "Use of Macro Fibre Composite Transducers as Acoustic Emission Sensors." Remote Sensing 1, no. 2 (April 24, 2009): 68–79. http://dx.doi.org/10.3390/rs1020068.

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44

Williams, R. Brett, Brian W. Grimsley, Daniel J. Inman, and W. Keats Wilkie. "Manufacturing and Cure Kinetics Modeling for Macro Fiber Composite Actuators." Journal of Reinforced Plastics and Composites 23, no. 16 (November 2004): 1741–54. http://dx.doi.org/10.1177/0731684404040171.

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45

Williams, R. Brett, Daniel J. Inman, Marc R. Schultz, Michael W. Hyer, and W. Keats Wilkie. "Nonlinear Tensile and Shear Behavior of Macro Fiber Composite Actuators." Journal of Composite Materials 38, no. 10 (May 2004): 855–69. http://dx.doi.org/10.1177/0021998304040555.

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46

Zhang, S. Q., S. Y. Zhang, M. Chen, J. Bai, and J. Li. "Computation of macro-fiber composite integrated thin-walled smart structures." IOP Conference Series: Materials Science and Engineering 137 (July 2016): 012032. http://dx.doi.org/10.1088/1757-899x/137/1/012032.

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47

Yanovsky, Yu G. "Multiscale modeling of polymer composite properties from nano- to macro." Journal of Central South University of Technology 14, S1 (February 2007): 38–42. http://dx.doi.org/10.1007/s11771-007-0210-1.

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48

Zhang, Shun-Qi, Ya-Xi Li, and Rüdiger Schmidt. "Modeling and simulation of macro-fiber composite layered smart structures." Composite Structures 126 (August 2015): 89–100. http://dx.doi.org/10.1016/j.compstruct.2015.02.051.

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49

Zhang, Lan Yu, Jian Gao, and Hui Tang. "Development and Modeling of a Macro/Micro Composite Positioning System for Microelectronics Manufacturing." Key Engineering Materials 679 (February 2016): 135–42. http://dx.doi.org/10.4028/www.scientific.net/kem.679.135.

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A macro-micro composite positioning stage with high acceleration and high precision is presented in this paper. A linear voice coil motor (VCM) is used to generate the macro motion, and a piezoelectric (PZT) actuator is adopted to drive the micro stage to achieve a precision micro motion, while PZT actuator can also be used to compensate the position error. A high-resolution grating is integrated into the stage to establish the closed-loop feedback. To research the mechanical dynamic characteristic of the stage, the mechanical dynamic model of the macro mechanism and micro mechanism are established, which is based on the rigid-flexible mixed dynamics of mechanical system. The dynamic characteristics of macro motion and micro motion are studied in detail, which is based on the mechanical dynamic simulation of Matlab. The accuracy of the established dynamic model and the performance of the stage are tested by using the scanning laser vibrometer. Both of the simulation results and test results show that the established model can well reflect the dynamic characteristics of the macro-micro composite positioning stage. It also indicates that the developed stage can well achieve a high acceleration and high precision motion, which aims to be applied in microelectronics manufacturing.

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Wang, Yi, Hong Song Fan, Yu Mei Xiao, Zhong Wei Gu, and Xing Dong Zhang. "A New Way to Prepare Porous Polylactide /Hydroxyapatite Scaffold at Room Temperature." Key Engineering Materials 309-311 (May 2006): 1083–86. http://dx.doi.org/10.4028/www.scientific.net/kem.309-311.1083.

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Abstract:

A new way to prepare polymer/hydroxyapatite(HA) composite scaffolds with 3-D interconnected macro and micro pores at room temperature was established, basically based on solvent-casting and particle-leaching together with foaming technique. With this method, Polylactide (PLA) / HA composites of porous architecture with macro pores (50~300)m, average 200)m) and micro pores (~10)m) on the skeleton were obtained. The bending strength and the compressive strength of the composite scaffold were reached to 11.5 MPa and 7MPa respectively with the porosity of approximate to 90%. The study supplied a new short time, low energyexpending method to prepare polymer/ceramic composite with high porosity and interconnected porous structure at room temperature.

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