Computational analysis of damage in hybrid composite structure

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F16%3A00233535" target="_blank" >RIV/68407700:21220/16:00233535 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0263822315008454" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0263822315008454</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.compstruct.2015.09.009" target="_blank" >10.1016/j.compstruct.2015.09.009</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Computational analysis of damage in hybrid composite structure

Popis výsledku v původním jazyce

This paper is based on research of a new type of composite material. A novel type of hybrid cell composite structure has been developed and used for many practical applications. Typical macroscopic sub-cells in the material’s cross section are formed by the stamping process of partially cured and axially oriented high modulus carbon fibre bundles wrapped by a thin layer of high strength fibres. The static strength of the cell structure’s building parts was measured in longitudinal and transverse directions and in shear loading. Bending behaviour was measured in four-point bending. Modified Non-uniform Transformation Field Analysis (NTFA) was proposed for the non-linear material characterised by a brittle failure. This modification is based on introducing damage modes instead of plastic modes. Damage modes have been chosen in composite specific material directions. A new model of the evolution of damage in every damage mode was proposed. We also propose a new solution scheme, consisting of the used damage modes and their specific behaviour (i.e. ultimate failure, and a combination of different degradation mechanisms). The modified NTFA method was incorporated into FEM code and verified in several four-point bending tests.

Název v anglickém jazyce

Computational analysis of damage in hybrid composite structure

Popis výsledku anglicky

This paper is based on research of a new type of composite material. A novel type of hybrid cell composite structure has been developed and used for many practical applications. Typical macroscopic sub-cells in the material’s cross section are formed by the stamping process of partially cured and axially oriented high modulus carbon fibre bundles wrapped by a thin layer of high strength fibres. The static strength of the cell structure’s building parts was measured in longitudinal and transverse directions and in shear loading. Bending behaviour was measured in four-point bending. Modified Non-uniform Transformation Field Analysis (NTFA) was proposed for the non-linear material characterised by a brittle failure. This modification is based on introducing damage modes instead of plastic modes. Damage modes have been chosen in composite specific material directions. A new model of the evolution of damage in every damage mode was proposed. We also propose a new solution scheme, consisting of the used damage modes and their specific behaviour (i.e. ultimate failure, and a combination of different degradation mechanisms). The modified NTFA method was incorporated into FEM code and verified in several four-point bending tests.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JI - Kompositní materiály

OECD FORD obor

—

Projekt

<a href="/cs/project/TA02010543" target="_blank" >TA02010543: Výzkum a vývoj nových typů hybridních kompozitních struktur s tlumením</a><br>

Návaznosti

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

Rok uplatnění

2016

Kód důvěrnosti údajů

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

Název periodika

Composite Structures

ISSN

0263-8223

e-ISSN

—

Svazek periodika

135

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

13

Strana od-do

109-121

Kód UT WoS článku

000365054400012

EID výsledku v databázi Scopus

2-s2.0-84943189801