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| 1 | Investigation on the Thermal Conductivity of 3-Dimensional and 4-Directional Braided Composites显示文摘It is vital to choose a factual and reasonable micro-structural model of braided composites for improving the calculating precision of thermal property of 3-D braided composites by finite element method (FEM). On the basis of new microstructure model of braided composites proposed recently, the model of FEM calculation for thermal conductivity of 3-dimennsional and 4-directional braided composites is set up in this paper. The curves of coefficient of effective thermal conductivity versus fiber volume ratio and interior braiding angle are obtained. Furthermore, comparing the results of FEM with the available experimental data,the reasonability and veracity of calculation are confirmed at the same time. | Liu Zhenguo Zhang Haiguo Lu Zixing Li Diansen | 2007 | Chinese Journal of Aeronautics2007，20，4： | 23 |
| 2 | Ex- perimental Study on the Compression Properties and Failure Mechanism of 3D Integrated Woven Spacer Composites 显示文摘 | Zhao Chuangqi Li Diansen Ge Tianqi | 2004 | Composite Structures2004，65，： | 1 |
| 3 | Finite element analy- sis of mechanical properties of 3D four-directional rectan- gular braided composites:Part 1 microgeometry and 3D fi- nite element model 显示文摘 | LI Diansen LI Jialu CHEN Li | 2010 | Applied Composite Materials2010，17，4： | 1 |
| 4 | Effect of temperature on bending properties and failure mechanism of three-dimensional braided composite显示文摘 | Diansen Li Daining Fang Guobing Zhang Hong Hu | 2012 | Materials and Design2012，，： | 1 |
| 5 | Experimental study on the compression properties and failure mechanism of 3D integrated woven spacer composites显示文摘 | Zhao Chuangqi Li Diansen Ge Tianqi | 2014 | Materials and Design2014，56，6： | 1 |
| 6 | Fabrication, properties and failure of 3D integrated woven spacer composites with thickened face sheets显示文摘 | Li Diansen Zhao Chuangqi Jiang Nan | 2015 | Materials Letters2015，148，6： | 1 |
| 7 | Microstructure and mechanical properties of three-dimensional five-directional braided composites显示文摘 | Li Diansen Lu Zixing Chen Li Li Jialu | 2009 | International Journal of Solids and Structures2009，46，1819： | 1 |
| 8 | A novel numerical simulation method for predicting compressive properties of 3D multiaxial braided composites considering various defects显示文摘This paper reports a novel manufacturing process of preparing the Three-Dimensional Multiaxial Braided Composites(3DMBCs) and the effects of various defects generated in the manufacturing process on the compressive mechanical properties of 3DMBCs through the experimental and numerical methods. The five-step fabrication process of the 3D multiaxial braided preform was firstly introduced in detail. Then, the influences of various defects such as voids, waviness, and fiber breakage defects on the compressive properties of 3DMBCs were discussed. It is found that the fiber breakage defect and waviness defects were the two primary factors on the decrease of compressive properties of 3DMBCs. However, void defects in the resin and interface had little effect on the composites. When the fiber breakage defect content was 25% and the waviness was 7°, the composite compressive modulus decreased by 51%. The progressive damage process and failure mechanism of the composite under 90° compressive loading confirmed the validity of the numerical model by comparing with the experiments. | Ruixin LEI Hao DOU Yan SUN Tao LIU Wei FAN Chenyang SONG Shujuan WANG Yao LU Xue YANG Diansen LI | 2023 | Chinese Journal of Aeronautics2023，36，9： | 0 |
| 9 | Characterization of microstructural features of Tamusu mudstone显示文摘Tamusu mudstone formation, located in the Alxa area in western Inner Mongolia, is considered a potential host formation for high-level radioactive waste(HLW) underground disposal in China. In this study, complementary analyses with X-ray diffraction(XRD), field emission scanning electron microscopy(FE-SEM), mercury intrusion porosimetry(MIP), and N_(2) physisorption isotherm were conducted on the Tamusu mudstone to characterize its physical characteristics and microstructural features, such as mineral compositions and pore structure. Several minerals, including carbonates, feldspar, clays and analcime, were identified in Tamusu mudstone by XRD. Images from FE-SEM show that pores in the Tamusu mudstone were dominantly on nanometer scale and generally located within their mineral matrix or at the interface with non-porous minerals. The combination of the MIP and N_2 physisorption curves indicated that the Tamusu mudstone has diverse pore sizes, a porosity varying from 2.34% to 2.84%, and a total pore volume in the range of 0.0065—0.0222 cm^(3)/g with the average pore diameter ranging from 9.6 nm to 19.23 nm. The specific surface area measured by MIP(2.572—5.861 m^(2)/g) was generally higher than that by N_(2) physisorption(1.29—3.04 m^(2)/g), due to the pore network effect, pore shape(e.g. ink-bottle shape), or technique limits. The results related to pore information can be applied as an input in the future to model single-or multi-phase fluid flow and the transport of radionuclides in porous geomedium by migration and diffusion. | Hongdan Yu Chen Lu Weizhong Chen Diansen Yang Honghui Li | 2022 | Journal of Rock Mechanics and Geotechnical Engineering2022，14，6： | 0 |
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