Volume 7, Issue 5 (September 1979)

    Nondestructive Evaluation of Hygrothermal Effects on Fiber-Reinforced Plastic Laminates

    CODEN: JTEOAD

      Format Pages Price  
    PDF 6 $25   ADD TO CART


    Abstract

    Ultrasonic tests were performed on glass-, carbon-, and Kevlar®-fiber-reinforced plastic laminates that had been exposed to varying hygrothermal ambient conditions. Results reveal similar trends between ultrasonic attenuation measurements and the degree of material degradation as reflected by laminate strength characteristics. A slow decrease in attenuation with almost no degradation was found to be common in all laminates exposed to cold water immersion. Hot water immersion seems to affect significantly glass-fiber-reinforced and Kevlar-fiber-reinforced plastic laminates, which exhibited an increase in attenuation with exposure time. Such a trend is attributable to the degradation process found to be significant in glass-fiber-reinforced plastics and almost nonexistent in the carbon-fiber-reinforced plastic systems.


    Author Information:

    Bar Cohen, Y
    NDE specialist and headmember of ASTM, Materials and Process Engineering, Israel Aircraft Industries, Ltd., Ben-Gurion Airport,

    Meron, M
    NDE specialist and headmember of ASTM, Materials and Process Engineering, Israel Aircraft Industries, Ltd., Ben-Gurion Airport,

    Ishai, O
    Associate professorMember of ASTM, Faculty of Mechanical Engineering, Technion, Israel Institute of Technology, Haifa,


    Stock #: JTE10226J

    ISSN: 0090-3973

    DOI: 10.1520/JTE10226J

    ASTM International is a member of CrossRef.

    Author
    Title Nondestructive Evaluation of Hygrothermal Effects on Fiber-Reinforced Plastic Laminates
    Symposium , 0000-00-00
    Committee E07