| 1. | Study on residual stiffness of layer composite plates under cycle - loading condition 循环加载条件下复合材料层板的剩余刚度试验研究 |
| 2. | B . for three - layer composite film , the total use level is not lower than 1 . 00 % B 、三层复合共挤膜,三层中流滴剂总含量应不低于1 |
| 3. | Scattering of shear horizontal waves in layered composites with weakly bonded interfaces 含弱界面的复合材料层合板对水平剪切波的散射 |
| 4. | Structural multiobjective optimization of multi - layer composite artillery barrel with ceramic liner 陶瓷内衬多层复合身管结构多目标优化设计 |
| 5. | 4 . we discuss the multi - layer composite armor penetrated by the rod projectile with the velocity of 1000m / s ~ 3000m / s (四)对杆式弹以1000m / s 3000m / s速度侵彻陶瓷多层复合装甲进行了探讨。 |
| 6. | Gold colloids with different particle sizes were synthesized using hydrogen tetrachloroaurate as the precursor and " na3 - citrate / nabh4 as the reducing agents . two - dimensional arrangements of gold particles and layered composites of gold with polymer pdda were prepared 以氯金酸为前驱体,以na _ 3 - citrate 、 nabh _ 4为还原剂制备了不同粒径的金纳米粒子,组装了金纳米粒子的单层或亚单层膜及其与聚合物pdda的多层复合膜。 |
| 7. | A homogenization - based method for predicting the viscoelastic property of multi - layered composite material is presented . by laplace transforming the governing equation of the viscoellastic problem of jointed rock , the dependent relation of the laplace transformation of the effective relaxation modulus of jointed rock on the joint distribution was derived by applying the homogenization method in laplace transformed domain . then , the effective relaxation modulus was obtained from the inverse transformation 首先对层状复合材料粘弹性问题的控制方程进行laplace变换,在像空间中利用均匀化理论建立宏观松弛模量的laplace变化与各层形式的依赖关系解析表达式,通过laplace逆变换可获得等效松弛模量预测的解析表达式,并给出了体积变形为弹性、剪切变形符合三元件模型的单向节理岩石的粘弹性松弛模量预测的数值算例。 |
| 8. | In this thesis , homogenization - based methods for predicting the viscoelastic property of multi - layered composite materials and unidirectional fiber reinforced composite materials are presented , and the relation curves of the moduli of materials with and inclusion volume fraction are given in the article 这对指导复合材料的生产实践具有重要意义。因此,需要研究微观结构与宏观结构之间的关系,研究复合材料粘弹性性能预测的理论和方法。该方面的研究对于复合材料的微观设计和节省实验费用都具有重要意义。 |
| 9. | Making use of many layers composite technique and heat press technique to make artificial skull , through a series of performance testes ( including elongate performance , compress performance , curve performance , concussion performance , lay cut performance , concussion cut performance ) , making use of drainage method to calculate its average density , which is 1 . 25kg / m3 , and combustion method to calculate its content of macromolecule , which is 57 . 7 % 利用多层复合技术和模压技术制备来的人工颅骨复合材料,通过对其一系列性能测试(包括拉伸性能、压缩性能、弯曲性能、冲击韧性、层间剪切强度和冲击剪切强度等) ,证明了该复合材料具有良好的物理机械性能。采用排水法计算复合材料的平均密度为1 . 25kg m ~ 3 ,采用灼烧法计算复合材料的含胶量为57 . 7 ,证明该复合材料比强度较高。 |
| 10. | The consolidation behavior of composite foundation with single column or with columns group was analyzed extensively by the computer program developed , and the mechanism that the column with low permeability can also accelerate the consolidation of soil was illustrated . moreover , a simplified method was proposed for consolidation analysis of layered composite foundation with column of high permeability . finally , a case study was made to show the practical application of this computer program 用编制的有限元程序对单桩、群桩复合地基的固结变形性状进行了大量的计算分析,阐述了弱排水桩也能加速地基固结的机理,提出了将强排水桩成层复合地基固结简化为均质单层复合地基固结的计算方法,并通过工程实例分析说明了该程序在实际中的应用。 |