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本文采用185℃试件栅转移方法和云纹干涉法的载波技术,研究了碳/双马复合材料层板(-45/90/422/90/-452/90/45/0/-45/45)2S的固化残余层间剪切应变,并给出剪应变沿铺层截面的分布。 相似文献
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Beam Adjustment with Double Subwavelength Metal Slits Surrounded by Tapered Dielectric Gratings 下载免费PDF全文
A beam optical focusing structure with double subwavelength metal slits surrounded by tapered surface dielectric gratings is proposed and demonstrated numerically. In the proposed structure, just with the regulation of the surface gratings, the radiation fields of surface plasmon polaritons (SPPs) can be controlled effectively to make a beam spot at several times the wavelength distance from the slit. Two methods for the control of focal length and width are proposed, and the simulation results verify that both the methods are effective for the design of nano-optical focusing devices. 相似文献
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介绍一种可用于微电子封装局部应变场分析的实验/计算混合方法,该方法结合了有限元的整体/局部模型和实时的激光云纹干涉技术,利用激光云纹干涉技术所测得的应变场来校核有限元整体模型的计算结果,并用整体模型的结果作为局部模型的边界条件,对实验难以确定的封装结构局部位置的应力、应变场进行分析.用这种方法对可控坍塌倒装封装结构在热载荷作用下焊球内的应变场分布进行了分析,结果表明该方法能够提供封装结构内应力-应变场分布的准确和可靠的结果,为微电子封装的可靠性分析提供重要的依据. 相似文献
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