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
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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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