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Nondestructive inspection and performance prediction method for composite structures, ultrasonic wave imaging system and calibration method

A technology for inspecting systems and composite structures, applied in the analysis of solids using sound waves/ultrasonic waves/infrasonic waves, material analysis using sound waves/ultrasonic waves/infrasonic waves, and testing composite materials, etc., which can solve time-consuming and expensive work and other problems

Active Publication Date: 2018-05-08
THE BOEING CO
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This results in time-consuming and expensive work that may not be necessary

Method used

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  • Nondestructive inspection and performance prediction method for composite structures, ultrasonic wave imaging system and calibration method
  • Nondestructive inspection and performance prediction method for composite structures, ultrasonic wave imaging system and calibration method
  • Nondestructive inspection and performance prediction method for composite structures, ultrasonic wave imaging system and calibration method

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Embodiment Construction

[0029] For purposes of illustration, systems and methods for the non-destructive inspection of structures made of composite materials (e.g., composite layered structures made of fiber-reinforced plastics) that enable the identification and quantification of composite Wrinkles in structures and predicting performance. However, not all features of an actual implementation are described in this specification. Those skilled in the art will recognize that in the development of any such embodiment, many implementation-specific decisions must be made in order to achieve the developer's specific goals, such as compliance with system-related and business-related constraints , the constraints of one implementation will be different from those of another implementation. Moreover, it will be appreciated that such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of those of ordinary skill in the art having the benefit of this disclo...

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Abstract

The invention provides a nondestructive inspection and performance prediction method for composite structures, an ultrasonic wave imaging system and a calibration method. In accordance with some embodiments, the method combines the use of B-scan ultrasound data, automated optical measurement of wrinkles and geometry of cross-sections, and finite element analysis of wrinkled composite structure toprovide the ability to assess the actual significance of a detected wrinkle relative to the intended performance of the structure. The disclosed method uses an ultrasonic inspection system that has been calibrated by correlating ultrasonic B-scan data acquired from reference standards with measurements of optical cross sections (e.g., micrographs) of those reference standards.

Description

technical field [0001] The present invention relates generally to non-destructive inspection of structures or parts, and more particularly to systems and methods for characterizing or evaluating anomalies, such as wrinkles, in layered structures, such as composite structures or the like. Background technique [0002] In the aerospace industry for commercial aircraft and other space vehicles, as well as in other industries, new, lightweight composite materials and designs are being used more widely. Structures using these composite materials can be formed using multiple sheets or layers of fiber reinforced plastic material that can be laminated together to form a lightweight, high strength structure. Fabrication of composite layered structures for aerospace applications can produce unwanted out-of-plane wrinkling of the layers, which can affect the performance of the structure based on the size of the wrinkles. Wrinkles and repairs in a composite structure can degrade its pe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N29/06G01N25/72
CPCG01N29/0609G01N29/4418G01N29/4436G01N25/72G01N29/069G01N2291/0231G01N29/043G01N29/0645G01N29/11G01N29/4445G01N21/88G01N2021/8472G01N2291/015G01N2291/044G01N2291/051G01N2291/106G01N2291/2632G01N2291/2694G01N29/07G01N29/30G01N2291/011G06F30/23G01N2291/0289
Inventor 加里·E·乔治森吉尔·P·宾厄姆宏·辉·泰元-杰·吴约翰·M·普赖尔萨迪·L·菲耶尼马克·D·温特斯凯瑟琳·T·穆尔詹姆斯·C·肯尼迪克莱顿·M·利特尔约翰·Z·林
Owner THE BOEING CO
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