An FFT-based homogenization scheme for cohesive zones with an application to adhesives and the core material of thin metal sandwich platesVisa övriga samt affilieringar
2024 (Engelska)Ingår i: Theoretical and applied fracture mechanics (Print), ISSN 0167-8442, E-ISSN 1872-7638, Vol. 129, artikel-id 104186Artikel i tidskrift (Refereegranskat) Published
Abstract [en]
Cohesive Zone Models with finite thickness are widely used for the fracture mechanical modeling of material layers, e.g., adhesive layers. Within this approach, the whole layer is modeled as a cohesive zone. Moreover, computational homogenization techniques are crucial for the development of advanced engineering materials, which are often heterogeneous. Compared to the commonly used Finite Element Method (FEM), solvers based on the Fast Fourier Transform (FFT) are expected to reduce the computational effort needed for the homogenization. Originated from an existing method for the computational homogenization of cohesive zones using FEM, a novel FFT-based homogenization scheme for cohesive zone models is presented. Our implementation of the FFT solver uses a displacement-based Barzilai–Borwein scheme and a non-local ductile damage model for the fracture behavior. Finally, the practical application of the method is discussed using an adhesive layer and the core material of HybrixTM metal sandwich plates as examples.
Ort, förlag, år, upplaga, sidor
Elsevier, 2024. Vol. 129, artikel-id 104186
Nyckelord [en]
Computational homogenization, Cohesive Zone Modeling, HybrixTM metal sandwich plates, FFT-based homogenization, Non-local damage, Adhesive layer
Nationell ämneskategori
Teknisk mekanik
Forskningsämne
Materialvetenskap; Materialteknik; Maskinteknik
Identifikatorer
URN: urn:nbn:se:kau:diva-97647DOI: 10.1016/j.tafmec.2023.104186ISI: 001124401000001Scopus ID: 2-s2.0-85177618840OAI: oai:DiVA.org:kau-97647DiVA, id: diva2:1816636
Forskningsfinansiär
Vinnova, 2019-020632023-12-042023-12-042024-01-03Bibliografiskt granskad