Detection of stacking orientation error of CFRP composite laminates using ultrasound waves

Abstract：A jig was developed for generating a shear wave. A pyramid with an isosceles triangle with two 45° was made of aluminum to generate shear waves using two longitudinal transducers based on ultrasonic-polarized mechanism. Also, the signal splitter was connected to the pulser jack on the pulser/receiver and to the longitudinal transducers. Therefore, an experimental way was performed in order to make shear wave on the bottom of aluminum alloyed pyramid. Also, a jig was manufactured and developed for generating a shear wave based on the computer numerical simulation. It is found that the experimentally shear wave variation of newly-designed jig is consistent with computer numerical simulation results and shear wave ultrasonic application can be very useful to detect the defects in CFRP composites. 作者： Author： Sun-Kyu KIM[1]  David HSU[2]  Young-Hwan SEO[3]  Kwang-Hee IM[4] 作者單位： Division of Mechanical System Engineering,Chonbuk National University,Jeonju 561-756,KoreaCenter for Nondestructive Evaluation,Iowa State University,Ames,Iowa 50011,USADepartment of Physical Education,Chosun University,Kwangju 501-759,KoreaDepartment of Automotive Engineering,Woosuk University,490,Hujung-ri,Samrae-up,Wanju-ktm,Chonbuk,565-701,Korea 期 刊： 中國有色金屬學報（英文版）   ISTICEISCI Journal： TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA 年，卷(期)： 2009, 19(z1) 分類號： Keywords： carbon-fiber reinforced plastics (CFRP)    polarized mechanism    stacking orientation defect    composite laminates    機標分類號： V21 O1 機標關鍵詞： composite laminates    CFRP    stacking    shear waves    simulation results    isosceles triangle    application    based    connected    in order    two    found    make    made 基金項目：

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