Modelling the failure of near-edge impacted carbon fibre-reinforced composite subjected to shear loading

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00010669%3A_____%2F18%3AN0000077" target="_blank" >RIV/00010669:_____/18:N0000077 - isvavai.cz</a>

Výsledek na webu

<a href="https://iopscience.iop.org/article/10.1088/1757-899X/369/1/012035/pdf" target="_blank" >https://iopscience.iop.org/article/10.1088/1757-899X/369/1/012035/pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1757-899X/369/1/012035" target="_blank" >10.1088/1757-899X/369/1/012035</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Modelling the failure of near-edge impacted carbon fibre-reinforced composite subjected to shear loading

Popis výsledku v původním jazyce

The failure of an impacted carbon fibre-reinforced composite is analysed, where a double impact near the edge of a large centre hole and subsequent shear loading are simulated. Three levels of impact with energies of 15 J, 25 J and 50 J are investigated, along with an impact-free panel used as control. The numerical finite-element (FE) method together with cohesive zone modelling is employed. The composite material is represented by the three-dimensional ply-by-ply FE model. The numerical results of the impacts are compared with respect to the damaged areas as described in the FE model and it is found that only the 50 J impact causes the impactor to penetrate the composite. Subsequent shear loading shows two failures during loading. The first is caused by a local loss of stability in the impacted region whereas the second is a failure in the tension diagonal of the panel. The load carrying capacity, when compared to the impact-free panel, shows on average, a reduction of 37% at the first failure. The FE modelling technique utilizing the ply-by-ply 3D model and cohesive zone representing the ply interactions is successfully adopted to simulate the shear test of the near-edge impacted composite. However, the behaviour of the compression region including the impact zone does not entirely agree with that experimentally observed during the shear test. In future studies, the compressive strength and local loss of stability should be more precisely addressed.

Název v anglickém jazyce

Modelling the failure of near-edge impacted carbon fibre-reinforced composite subjected to shear loading

Popis výsledku anglicky

The failure of an impacted carbon fibre-reinforced composite is analysed, where a double impact near the edge of a large centre hole and subsequent shear loading are simulated. Three levels of impact with energies of 15 J, 25 J and 50 J are investigated, along with an impact-free panel used as control. The numerical finite-element (FE) method together with cohesive zone modelling is employed. The composite material is represented by the three-dimensional ply-by-ply FE model. The numerical results of the impacts are compared with respect to the damaged areas as described in the FE model and it is found that only the 50 J impact causes the impactor to penetrate the composite. Subsequent shear loading shows two failures during loading. The first is caused by a local loss of stability in the impacted region whereas the second is a failure in the tension diagonal of the panel. The load carrying capacity, when compared to the impact-free panel, shows on average, a reduction of 37% at the first failure. The FE modelling technique utilizing the ply-by-ply 3D model and cohesive zone representing the ply interactions is successfully adopted to simulate the shear test of the near-edge impacted composite. However, the behaviour of the compression region including the impact zone does not entirely agree with that experimentally observed during the shear test. In future studies, the compressive strength and local loss of stability should be more precisely addressed.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20304 - Aerospace engineering

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název statě ve sborníku

IOP Conference Series: Materials Science and Engineering

ISBN

—

ISSN

17578981

e-ISSN

—

Počet stran výsledku

8

Strana od-do

nestrankovano

Název nakladatele

Institute of Physics Publishing

Místo vydání

Neuveden

Místo konání akce

Kitakyushu, Japonsko

Datum konání akce

10. 4. 2018

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000437169900035