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Pregled bibliografske jedinice broj: 750770

Mixed-mode delamination in 2D layered beam finite elements


Škec, Leo; Jelenić, Gordan; Lustig, Nikola
Mixed-mode delamination in 2D layered beam finite elements // International journal for numerical methods in engineering, 104 (2015), 8; 767-788 doi:10.1002/nme.4939 (međunarodna recenzija, članak, znanstveni)


Naslov
Mixed-mode delamination in 2D layered beam finite elements

Autori
Škec, Leo ; Jelenić, Gordan ; Lustig, Nikola

Izvornik
International journal for numerical methods in engineering (0029-5981) 104 (2015), 8; 767-788

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Multi-layer beam; mixed-mode delamination; damage; finite element analysis; modified arc-length

Sažetak
In this work a 2D finite element formulation for a multi-layer beam with arbitrary number of layers with interconnection which allows for mixed-delamination is presented. The layers are modelled as linear beams, while interface elements with embedded cohesive zone model are used for the interconnection. Since the interface elements are sandwiched between beam nite elements and attached to their nodes, the only basic unknown functions of the system are two components of the displacement vector and a cross-sectional rotation per layer. Damage in the interface is modelled via a bi-linear constitutive law. Since in a numerical integration procedure it occurs only in discrete integration points (i.e. not continuously), the solution procedure experiences sharp snapbacks in the force-displacements diagram. A modified arc-length method is used to solve this problem. The present model is verified against commonly used models which use 2D plane-strain finite elements for the bulk material. Various numerical examples show that the multi-layer beam model presented gives accurate results using significantly less degrees of freedom in comparison with standard models from the literature.

Izvorni jezik
Engleski

Znanstvena područja
Građevinarstvo, Temeljne tehničke znanosti



POVEZANOST RADA


Projekt / tema
114-0000000-3025 - Unapređenje točnosti nelinearnih grednih elemenata s neograničenim 3D rotacijama (Gordan Jelenić, )
HRZZ-IP-2013-11-1631 - Aproksimacija ovisna o konfiguraciji u nelinearnoj analizi konstrukcija metodom konačnih elemenata (Gordan Jelenić, )

Ustanove
Građevinski fakultet, Rijeka

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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