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1. 发明申请

US20110218743A1 COMPOSITE EVALUATION 审中-公开
标题翻译：复合材料评估
公开(公告)号：US20110218743A1
公开(公告)日：2011-09-08
申请号：US13122235
申请日：2009-10-07
申请人： Robert Alan Smith , Richard E. Challis , Martin J. Mienczakowski
发明人： Robert Alan Smith , Richard E. Challis , Martin J. Mienczakowski
IPC分类号： G06F19/00 , G06F17/10 , G01N29/00
CPC分类号： G01N29/11 , G01N29/4418 , G01N29/46 , G01N2291/0231
摘要： A method for evaluating a composite structure includes providing a model of said structure and locally varying a material property to determine complex reflection and transmission coefficients at said locality. From these coefficients at least one ultrasonic response characteristic for said material property can be found and compared to a measured ultrasonic response of a sample to determine a local measure of the material property. This method exploits the fact that certain material properties contribute to the ultrasonic frequency response substantially independently of one another. The frequency response of a region of porosity and of a thick resin layer in particular are evaluated. In one embodiment, the modelled responses are used to provide frequency domain basis functions for material properties, which can in turn be used in a decomposition method.
摘要翻译：一种用于评估复合结构的方法包括提供所述结构的模型并且局部地改变材料特性以确定所述位置处的复反射和透射系数。从这些系数可以找到用于所述材料特性的至少一个超声波响应特性并将其与测量的样品的超声波响应进行比较，以确定材料性质的局部测量。该方法利用了某些材料性质基本上彼此独立地促成超声波频率响应的事实。评估孔隙度区域和厚树脂层的频率响应。在一个实施例中，建模的响应用于为材料属性提供频域基函数，其又可以用于分解方法。

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