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双语推荐:E玻纤

文章分析了不同螺杆组合方式对E玻纤增强增韧浆丙烯挤出工艺和材料力学性能的影响,并选择一种最佳的螺杆组合方式,结果表明,通过适当的螺杆组合可改善E玻纤增强PP的挤出工艺,提高材料的力学性能。
The paper analyzed the effects on the extruding process and the mechanical properties of materials of E-glass fiber reinforced polypropylene with different smcrew Assemble, and then selected the optimum mode of screw Assemble. The results indicated that the appropriate screw Assemble can improve the extruding process of E-lass fiber reinforced PP and the mechanical properties of materials.

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介绍一种新型连续玄武岩维及其复合材料,给出其在国内外的研究及发展概况,简述了国内玄武岩维复合材料在船艇中的应用技术研究情况,分别对采用玄武岩维和E玻纤建造的复合材料主船体作了总强度、总刚度和振动模态测试,并比较两者的试验结果,得出有用的结论。
This paper introduces a new type of the continuous basalt ifber and its composite material (hereafter, referred to as“CBF/CM”), and presents the research and general development both at home and abroad. It brielfy describes application techniques of the basalt ifber composite material in ships, and performs the vibration mode test of the overall strength and stiffness of main hull with composite material made by the basalt ifber and E-glass ifber.

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以国产二氧化硅气凝胶为基体材料,E玻纤为支撑骨架,添加白色硅酸盐水泥为粘结剂,掺少量的矿粉降低水化热,制备出低热导率的建筑保温隔热材料;分别测样品的压缩强度M、常温常压热导率λ和体积电阻率ρ.结果表明:经过600℃处理0.5h的样品,密度D为230kg·m-3,M值为2.00MPa,λ值为0.052Wm-1K-1,ρ值为1.61×1011Ω·cm.本研究对性价比高的二氧化硅气凝胶建筑保温隔热材料产业化具有现实的意义.
@@@@A thermal insulation block of lower thermal conductivity used in building was prepared by silica aerogel. Silica aerogel made in china was used as a matrix, E-glass fiber as a framework, the white Portland cement clinker as a binder, mineral powder as a admixture to decrease hydration heat. Compressive strength (M), thermal conductivity (λ) and volume resistivity (ρ) were measured, respectively. Results show the sample heated at 600 ℃ for 0.5h has a lower density (D) of 230kg·m-3, the R value 2.00Mpa, the λ value 0.052 Wm-1K-1, the ρ value1.61×1011Ω·cm. This research has good industrialization prospects owing to its high performance-price ratio about thermal insulation block which was prepared by silica aerogel and used in building.

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由拉伸实验获得 E-玻纤增强复合板材的基本力学性能参数,为构建损伤分析模型及冲击有限元模型提供底层数据。通过弹性力学推导材料正交各向异性的本构关系,并对本构关系中的刚度矩阵进行数值解析,得到复合材料弹性本构方程;将结果应用于Hashin强度准则,建立以连续损伤力学为基础的正交各向异性损伤本构模型。将所建立的弹性及损伤本构关系赋予层合板三维模型,通过ABAQUS/Explicit软件模拟弹丸低速冲击GFRP板进行复合材料损伤力学分析,结果表明层合板内部损伤主要是分层和基体开裂,且层间脱层损伤面积远大于层内损伤,而各层内损伤模式中最主要的是基体开裂,其次是维断裂,而基体挤压和维挤压损伤区域相对较少。当层合板发生冲击变形后,冲击背部承受较大拉应力,微观上的损伤扩展演变到一定程度,基体开裂和维断裂会首先产生于GFRP冲击背面,而越靠近上表面损伤程度越小。
The basic mechanical properties of E-glass fiber reinforced composites were achieved through tensile test to provide reference data for the material model and numerical simulation.Composite elastic constitutive equation was obtained through orthotropic constitutive material by derivation of elasticity and the numerical a-nalysis of stiffness matrix in constitutive.The results were applied to Hashin strength criterion,establishing a continuum damage mechanics based orthotropic damage constitutive model.Created flexibility and damage con-stitutive model given three-dimensional laminates,then using the finite element software ABAQUS/explicit simulated the impact of the proj ectile through the GFRP composite laminates to achieve the established model of the application,and the simulation results were analyzed.Laminates internal damage was mainly delamination and matrix cracking and interlaminar delamination damage area much larger than the inner layer.The most im-portant damage mode of eac

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