Global topology of failure surfaces of metallic foams in principal-stress space and principal-strain space studied by numerical simulations

Y Wu, D Qiao, L Tang, H Xi, Y Liu, Z Jiang, Z Liu… - International journal of …, 2019 - Elsevier
Failure surfaces of foam materials in the principal-stress/strain space are quite different from
those of dense materials. They cannot be deduced directly by several simple tests such as …

Global topology of yield surfaces of metallic foams in principal-stress space and principal-strain space studied by experiments and numerical simulations

Y Wu, D Qiao, L Tang, Z Liu, Y Liu, Z Jiang… - International Journal of …, 2017 - Elsevier
There are multiple controversies regarding the yield surface of metallic forms, and the
primary cause is that the characterizations are summarized by notably scarce yield points in …

Modeling and computing parameters of three-dimensional Voronoi models in nonlinear finite element simulation of closed-cell metallic foams

X Zhang, Y Wu, L Tang, Z Liu, Z Jiang… - Mechanics of advanced …, 2018 - Taylor & Francis
Modeling and computing parameters in nonlinear finite element simulations significantly
affect simulation accuracy and efficiency even when it is carried out using commercial …

Strain rate effect on mechanical properties of the 3D-printed metamaterial foams with tunable negative Poisson's ratio

D Gao, B Wang, H Gao, F Ren, C Guo, S Ma… - Frontiers in …, 2021 - frontiersin.org
As a kind of metamaterial, the negative Poisson's ratio foams, which expand (shrink) in the
transverse direction when stretched (compressed) in the longitudinal direction, have many …

Numerical study of the shape irregularity gradient in metallic foams under different impact velocities

Y Wu, L Tang, Z Liu, Y Liu, Z Jiang, X Zhang - Journal of materials …, 2017 - Springer
The properties of metallic foams are closely related to the average pore size, relative density
and degree of the shape irregularity in the meso-structure. In this paper, gradient metallic …

[PDF][PDF] 基于3D Voronoi 模型形状不规则度组合梯度泡沫金属的动态冲击力学性能研究

胡和平, 刘希文, 张晓阳, 孙耀威 - 南华大学学报(自然科学版), 2021 - nhqks.cnjournals.com
泡沫金属的力学性能与其细观结构参数密切相关. 四个形状不规则度参数梯度组合的3D Voronoi
结构模型被用于开展动态冲击数值仿真实验, 探究不同冲击速度下形状不规则度梯度组合类型对 …

Numerical analysis on usability of SHPB to characterize dynamic stress–strain relation of metal foam

B Xie, L Tang, Y Liu, Z Jiang, Z Liu - International Journal of Applied …, 2017 - World Scientific
Split Hopkinson pressure bar (SHPB) technique is the most important test method to
characterize dynamic stress–strain relations of various materials at different strain rates, and …

Interval Identification of Thermal Parameters Using Trigonometric Series Surrogate Model and Unbiased Estimation Method

X Wang, W He, L Zhao - Applied Sciences, 2020 - mdpi.com
Featured Application In this study, firstly, we proposed a novel modelling methodology for
metal-foam materials in low porosity, which can simulate the actual geometry simply and …