Title: The elasto-plastic behaviour of three-dimensional stochastic fibre networks with cross-linkers

Citation
Ma YH, Zhu HX, Su B, et al. (2017). The elasto-plastic behaviour of three-dimensional stochastic fibre networks with cross-linkers. Cardiff University. http://doi.org/10.17035/d.2017.0042874284


Access Rights: Data can be made freely available subject to attribution
Access Method: Click to email a request for this data to opendata@cardiff.ac.uk

Cardiff University Dataset Creators

Dataset Details
Publisher: Cardiff University
Date (year) of data becoming publicly available: 2017
Data format: .docx
Estimated total storage size of dataset: Less than 100 megabytes
Number of Files In Dataset: 1
DOI: 10.17035/d.2017.0042874284

Description

Fibre network materials constitute a class of highly porous materials with low density, promising for functional and structural applications; however, very limited research has been conducted, especially on simulation and analytical models. In this paper, a continuum mechanics-based three-dimensional periodic beam-network model has been constructed to describe the stochastic fibre network materials. In this model, the density of the cross- linkers is directly related to the relative density of the fibre network materials, and the cross-linkers are represented by equivalent beam elements. The objective of this work was to delineate the elasto-plastic behaviour of the stochastic fibre network materials. Charac- teristic stress and strain derived from the total strain energy density have been adopted to reveal the yielding behaviour of the fibre networks. The results indicate that the stochas- tic fibre network materials are transversely isotropic. The in-plane stiffness and strength are much larger than those in the out-of-plane direction. For the fibre network materials with a small relative density, the relationship between the uniaxial yield strength and the relative density is a quadratic function in the x direction and is a cubic function in the z direction, which agree well with our dimensional analysis and are consistent with the rel- evant experimental results in literature. The yield surface depends strongly on the relative density and the connection between fibres.

Data comprises: statistics of the relative density and normalized Young’s modulus; ratios between reaction forces over 20 models; characteristic stress-strain relations; relationship between the relative density and the uniaxial yield strength; effects of relative density on the shear strength.

Research results based upon these data are published at https://doi.org/10.1016/j.jmps.2017.09.014



Keywords

Fibre network materials

Research Areas

Last updated on 2019-02-08 at 11:15