Effect of inter-fibre bonding on the fracture of fibrous networks with strong interactions. (April 2018)

• Record Type: Journal Article
• Authors: Goutianos, Stergios; Mao, Rui; Peijs, Ton
• Is Part Of: International journal of solids and structures. Volume 136/137(2018)
• Page Start: 271
• Page End: 278
• Publication Date: 2018-04
• Subjects: Nanocellulose -- Nanopaper -- Inter-fibre bonds; Mechanics, Applied -- Periodicals; Structural analysis (Engineering) -- Periodicals; Elastic solids -- Periodicals; Mécanique appliquée -- Périodiques; Constructions, Théorie des -- Périodiques; Solides élastiques -- Périodiques; Elastic solids; Mechanics, Applied; Structural analysis (Engineering); Periodicals; 624.18
• DOI: 10.1016/j.ijsolstr.2017.12.020
• Languages: English
• ISSNs: 0020-7683

Abstract

Abstract: The mechanical response of cellulose nanopaper composites is investigated using a three-dimensional (3D) finite element fibrous network model with focus on the effect of inter-fibre bonds. It is found that the Young's modulus and strength, for fixed fibre properties, are mainly controlled by the density and strength of the inter-fibre bonds. An increase of the inter-fibre bond density and inter-fibre bond strength results in an increase of both the Young's modulus and strength of the fibrous network materials. The fracture energy of the inter-fibre bonds has a minor effect on the mechanical properties of the cellulose nanopapers. The inter-fibre bond properties and density have a minor effect on the strain to failure of the cellulose nanopaper. The effect of the fibre properties, through the ratio of fibre tensile strength to fibre Young's modulus, has also a significant impact on mechanical response of the network including the strain to failure.