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The effect of long-time moisture exposure and low temperatures on mechanical behavior of open-hole Cfrp laminate

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F21%3A00349854" target="_blank" >RIV/68407700:21220/21:00349854 - isvavai.cz</a>

  • Result on the web

    <a href="https://doi.org/10.1002/pc.26082" target="_blank" >https://doi.org/10.1002/pc.26082</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1002/pc.26082" target="_blank" >10.1002/pc.26082</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    The effect of long-time moisture exposure and low temperatures on mechanical behavior of open-hole Cfrp laminate

  • Original language description

    Carbon fiber composite laminates (CFRP) used in aerospace are operating under various environmental conditions. Parts are often exposed to moisture which slowly diffuses into the lam inate and forms internal stresses. During the flight, the aircraft is also exposed to low or elevated temperatures. The result is negative impact on composite performance due to formation of hygrothermal stresses. Understanding this phenomenon helps with prediction of the damage development which is vital for increasing the components service life. The open-hole CFRP laminates were conditioned in humid air at 70 °C/85% RH for 33,800 h and the effect of low temperatures on quasi-cyclic tension properties and fracture behavior was investigated. The mechanical tests on two types of CFRP laminate with different number and orientation of plies were performed under -55 °C. The material behavior during the testing was monitored by acoustic emission technique. The light optical microscopy and scanning electron microscopy were used for the identification of failure mechanisms. The study showed that the hygrothermal effect has significant impact on materials toughness reduction. The damage mechanisms and characteristic morphologic features are changing due to the matrix degradation and weakened fiber/matrix interface.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    20505 - Composites (including laminates, reinforced plastics, cermets, combined natural and synthetic fibre fabrics; filled composites)

Result continuities

  • Project

    <a href="/en/project/EF16_019%2F0000826" target="_blank" >EF16_019/0000826: Center of Advanced Aerospace Technology</a><br>

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2021

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Polymer Composites

  • ISSN

    0272-8397

  • e-ISSN

    1548-0569

  • Volume of the periodical

    42

  • Issue of the periodical within the volume

    7

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    16

  • Pages from-to

    3603-3618

  • UT code for WoS article

    000641966200001

  • EID of the result in the Scopus database

    2-s2.0-85109386895