Naslov
Strain rate dependent modelling of impact damage in laminated composite plates

Autori
Ivančević, Darko ; Giannaros, Efthimis ; Stanić, Luka

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
Proceedings of the 20th European Conference on Composite Materials - Composites Meet Sustainability / Vassilopoulos, Anastasios ; Michaud, Véronique - Lausanne : École polytechnique fédérale de Lausanne (EPFL), 2022

ISBN
978-2-9701614-0-0

Skup
20th European Conference on Composite Materials

Mjesto i datum
Lausanne, Švicarska, 26.06.2022. - 30.06.2022

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
composite materials ; failure criteria ; strain rate effects ; impact damage ; VUMAT subroutine

Sažetak
The response of composite structures when subjected to impact damage differs significantly from those in static condition. The mechanical properties, which are determined by matrix behaviour, are a good illustration of this. Hence, a numerical methodology for laminated CFRP structures has been developed in this work to include strain rate effects into the impact damage simulation. The VUMAT subroutine has been used to implement the failure criteria and damage model developed for impact damage in laminated composite structures into Abaqus/Explicit. The implemented damage model is applicable for solid FE in three-dimensional stress state and can predict mesh-size-independent impact results for any target discretization, which allows usage of relatively coarse meshes thereby lowering computational cost. The methodology has been validated using latest experimental data.

Izvorni jezik
Engleski

Znanstvena područja
Strojarstvo, Zrakoplovstvo, raketna i svemirska tehnika

POVEZANOST RADA