Most commonly, bolted joints are adopted to connect laminates to other structures, and the fatigue properties of joints affect the service life of jointed structures seriously.
此种结构一般采用螺栓连接,其连接处的疲劳特性往往决定了结构的使用寿命。
An energy method for determining fracture toughness of fibrous composite laminates was based on the theory of elastic energy release rate and crack-growth resistance in this paper.
应用线弹性断裂力学的弹性能释放率及裂纹扩展阻力等基本概念和理论,建立起确定纤维增强高分子聚合物复合材料断裂韧性的能量方法。
The present results may provide an important theoretical basis for further studying the micro-failure mechanism, ultimate strength and synergistic effect for cross-ply laminates under tension.
本文结果为进一步研究正交叠层复合材料的细观破坏机理、最终拉伸强度及协同效应等提供了重要的理论依据。
Laminated-toughened TS matrix laminates showed remarkable enhancement in impact damage resistance, while their static mechanic properties were well kept.
经层状化增韧,热固性基体复合材料的抗冲击损伤性能得到显著提高,同时原有的静态力学性能基本上没有受到影响。
These thicker laminates are more difficult to infuse and the exotherm development of traditional epoxy systems can lead to exotherm wrinkles in spar caps.
但这些较厚的层压板不易进行灌注,同时,由于传统环氧系统的固化放热还会导致在主梁生产过程中产生起皱等品质缺陷。
In this paper, the manufacture process, the mechanical and delamination properties of several kinds of fiber reinforced aluminium laminates have been studied.
本文初步探索了几种纤维增强铝合金胶接层板的成型工艺,并评定了这些层板的力学性能和抗分层性能。
The need to characterize damage resistance and damage tolerance behaviour of composite laminates was proposed by the design requirements and usage experience.
复合材料结构的设计要求和使用经验提出了复合材料体系损伤阻抗和损伤容限性能表征的需求。
The formula for calculating the elastic constants of the composites laminates is derived in this paper. The calculating results agree with the experimental values.
本文推导了计算多向复合材料层板弹性模量的公式,计算结果与实验结果符合得很好。
The representative testing results of laminates show that the equipment is effective and the testing method is a promising attempt, which can be used for reference.
对层板复合材料试验结果的分析表明,设计的测试装置有效,建立的测试方法是对层板复合材料断裂韧性测试的有益尝试,有较大的参考价值。
The effects of stitching technical parameters such as the stitch thread diameter, stitch step and stitch space on the stitched composite laminates are also analyzed.
研究了缝纫参数(包括缝纫线直径,缝纫针距和行距)对缝纫复合材料层合板屈曲强度的影响。
The results showed that the honeycomb laminates had an interlinking open cell structure without remarkable interface between silicone rubber and silicone rubber foam;
结果表明:蜂窝结构硅橡胶泡沫材料内部为大小不等但相互连通的开孔网络结构,泡沫与硅橡胶之间无明显界面;
In addition, by combining the interleaving and surface bonded PZT ceramics, joint effect of both methods has been achieved for the vibration damping of CFRP laminates.
另外,将插层和表面粘结压电陶瓷方法结合并用,会收到综合的CFRP振动阻尼效果。
Because of complicated reinforced-fiber space distributing, analysis of mechanical performance is very different from laminates in three-dimensional braided composites.
由于三维编织复合材料中纤维束在空间分布的复杂性,与层合复合材料力学性能分析有着本质的差别。
Followly, the bending rigidity and transverse shearing rigidity of one-way bamboo-stripe laminates applied to shipbuilding has been measured practically with this method.
用该方法实测了造船工业用的单向竹蔑积成胶合板的弯曲刚度与横向剪切刚度。
The characteristic of thermosetting polyphenylene oxide resin copper clad laminates as wel as their application in the high frequency printed circuit board is introduced.
论述了热固性聚苯醚树脂基覆铜板的特性及其在高频印刷电路板上的应用。
The automatic Cut Sheet Laminator 1600-spc is a high productivity machine which automatically premeasures and precisely laminates dry film within the confines of the panel.
自动贴膜机1600-SPC是高生产率的机器,可以自动精确测量预贴干膜,使之尺寸与板料边缘符合。
In this paper, the interlaminar stress distributions of symmetric composite laminates with a hole are predicted by the three-dimensional elastoplastic finite element method.
本文用三维弹塑性有限元法计算了含圆孔对称复合材料层板的层间应力分布。
The test result shows that the unidirectional laminates have good relativity of resistance and strain and can be used as strain sensor to inspect the safety of the structure.
结果表明,单向碳纤维布复合材料电阻变化具有较好的应变相关性,可作为应变传感器使用,达到预警及智能监测的效果。
Then, buckling characteristic equations for laminates with built-in circular or elliptical delaminations are derived by using the variational principle and linearized method.
然后由变分原理并进行线性化得出了含内埋圆形或椭圆形脱层板的屈曲特征方程。
By using a dynamic contact analysis, a finite element model is developed to calculate the response of composite laminates to low velocity impact. A numerical example is given.
利用动力接触分析方法模拟冲击的接触行为,提出了一种新的计算复合材料层板低速冲击响应的有限元模型。最后给出一个算例。
In this paper, a nonlinear elastic model to predict stress-strain relationship of circular concrete columns confined with fiber reinforced polymer (FRP) laminates is developed.
在本文中,作者建立了FRP约束混凝土圆形柱应力-应变关系的非线性弹性模型。
With, the representative unit as the basis, the microstress of the component materials in the monolayer of composite laminates were analysed under variant load and temperature.
本文以代表体元作为基本单元,分析了在荷载作用和温度变化时,复合材料层合板单层中组分材料的微观应力。
YANG J M, ZHONG X D, ZHAO Y Y. Strain energy and damping analysis of composite laminates with two interleaved viscoelastic layers[J]. Engineering Mechanics, 2010, (3): 133-138.
[57] 杨加明,钟小丹,赵艳影。复合材料夹杂双层黏弹性材料的应变能和阻尼性能分析[J]。工程力学, 2010, (3): 133-138。
Effect of potassium permanganate etching solution on the roughening of epoxy resin laminates board and 3240 epoxy resin board at various temperatures and times was investigated.
在不同的微蚀温度、时间条件下,研究了高锰酸钾微蚀溶液对环氧树脂层压板和3240型环氧树脂板(基板)微蚀作用的影响。
Divorced from the watery, breezy world outside, each venue offered variations of faux wood-grain laminates; dark, patterned carpets; brass railings and flamboyant light fixtures.
远离大海与微风的外部世界,所有场馆里都有不同的伪木质压层、带花纹的深色地毯、黄铜围栏和花哨的灯具。
The experiment results show that the dynamic response of the laminates is clearly dependent upon temperatures and strain rates and there exists dynamic toughness in the laminates.
实验结果表明,玻璃布环氧层板具有明显的应变率、温度效应;在室温以上温度环境下,该层板具有动态韧性。
Aluminum hydroxide particles having improved thermal stability and their use as a flame retardant in resins suitable for use in epoxy laminates, and laminates containing the same.
热稳定性提高的氢氧化铝颗粒,以及它们在适用于环氧层压材料的树脂中作为阻燃剂的用途,及包含其的层压材料。
Flexural strength and open-hole tensile strength of glass-fiber woven reinforcement epoxy laminates is investigated experimentally at room temperature and hygrothermal environment.
实验研究了不同铺层厚度的二维机织玻璃纤维织物/环氧胶膜基体复合材料层压板室温和湿热环境下的开孔拉伸和弯曲性能。
A cumulative damage model is proposed, which can be used to consider the influence of in plane bi-axial stresses and mean stress on the fatigue behavior of unidirectional laminates.
推荐了一种应变损伤累积模型,能够考虑单向板面内多轴应力和平均应力的影响。
The precure process makes the resin cure to a certain extent, decreases resin flowability, improves resin processability significantly, and enhances the composite laminates quality.
预固化可使氰酸酯树脂发生一定程度的自聚反应,从而降低其流动性,可明显改善氰酸酯树脂的工艺性,提高了层板的成型质量。
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