Delamination Growth under Mixed Mode I - Mode II Fatigue Loading in Polymer Composite

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00010669%3A_____%2F18%3AN0000040" target="_blank" >RIV/00010669:_____/18:N0000040 - isvavai.cz</a>

Result on the web

<a href="http://experimentalni-mechanika.cz/konference/konference/2018/file/1457-delamination-growth-under-mixed-mode-i-mode-ii-fatigue-loading-in-polymer-composite.html" target="_blank" >http://experimentalni-mechanika.cz/konference/konference/2018/file/1457-delamination-growth-under-mixed-mode-i-mode-ii-fatigue-loading-in-polymer-composite.html</a>

DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Delamination Growth under Mixed Mode I - Mode II Fatigue Loading in Polymer Composite

Original language description

The characterization of material parameters on mixed mode bending (MMB) specimens was needed for modelling of crack growth in the composite air inlet of new L-39 NG jet trainer. The paper describes methods and results of the delamination growth in a carbon fibre-reinforced polymer composite under mixed mode I (opening) – mode II (shear) quasi-static and fatigue loading. This article summarizes the results of 15 quasi-static and 3 fatigue specimens tested in 3 different mode mixtures – 25%, 50% and 80%. The fracture toughness was increasing with the increasing mode mixture. The scatter of values was increasing with the mode II preference. The curves of crack growth rate vs. strain energy release rate were obtained and fitted by a regression model considering the mode mixtures. The dependence of crack growth law parameters according to Paris equation on the mode mixtures was non-linear. Thus, unique material characteristics needed for modelling were obtained.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

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

Project

<a href="/en/project/TE02000032" target="_blank" >TE02000032: Advanced Aerostructures Research Centre</a><br>

Continuities

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

Publication year

2018

Confidentiality

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

Article name in the collection

Experimental Stress Analysis - 56th International Scientific Conference, EAN 2018 - Conference Proceedings

ISBN

978-80-270-4062-9

ISSN

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e-ISSN

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Number of pages

8

Pages from-to

168-175

Publisher name

Czech Society for Mechanics

Place of publication

Liberec

Event location

Harrachov

Event date

Jun 5, 2018

Type of event by nationality

EUR - Evropská akce

UT code for WoS article

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