Peng Liu
Hunan University
PiezoelectricityLS-DYNAUltimate tensile strengthEngineeringMathematical analysisFinite element methodComposite materialPlate theoryBoundary value problemMaterials scienceVibrationExtended finite element methodFunctionally graded materialIsogeometric analysisTransient (oscillation)Material propertiesLinear elasticitySmoothingComputer scienceFracture (geology)Computer simulationSolid mechanicsMechanicsStructural engineeringIntensity (heat transfer)Puncture resistanceNatural frequencyBuckling
25Publications
12H-index
554Citations
Publications 18
Newest
#1Shuohui Yin (XTU: Xiangtan University)H-Index: 18
#2Ning Zhang (XTU: Xiangtan University)
Last. Yu Cong (Université Paris-Saclay)
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Abstract null null This paper aims to develop a variable-node multiscale extended finite element method (V-XFEM) for dynamic fracture analysis of the linearly uncoupled and coupled physical phenomena in a compact formula. The general governing equations for the linearly uncoupled and coupled physical phenomena are presented in a compact form. The local mesh refinement technique for modeling cracks is used to improve the accuracy and efficiency, in which variable-node elements without modifying t...
Source
#1Chaohui Zhang (Hunan University)H-Index: 3
#2Prashant Rawat (Hunan University)H-Index: 7
Last. Deju Zhu (Hunan University)H-Index: 27
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In this study, a new biomimetic design of protective equipment has been proposed. Basically, teleost fish scales combine a two-layered structure, tuff high mineralized bony layer with relatively soft collagen and fiber-based sublayer arranged in periodic overlapping design, which offers excellent flexibility and puncture resistance. For the biomimetic design of fish scales, a hard-ceramic layer with ultra-high-molecular-weight polyethylene based-sublayer is used for the design of protective equi...
3 CitationsSource
#1Chaohui Zhang (Hunan University)H-Index: 3
#2Peng Liu (Hunan University)H-Index: 12
Last. Tinh Quoc Bui (TITech: Tokyo Institute of Technology)H-Index: 54
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Biological materials-fish scales exhibit ultra-flexibility due to its functionally graded materials. Inspired by the hierarchical gradient structure of fish scales, a new flexible gradient model that can adequately describe the characteristics of the bioinspired hierarchical structures is proposed in this work. To assess the flexibility of the proposed gradient model, a combination of extended finite element method (XFEM) and stabilized discrete shear gap (DSG) is established to analyze the vibr...
2 CitationsSource
#1Deju Zhu (Hunan University)H-Index: 27
#2Chaohui Zhang (Hunan University)H-Index: 3
Last. Laith A. JawadH-Index: 1
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The mechanical properties and structures of fish scales have generated considerable research interest, however, comparative studies for different fish scales from different water regions have not been reported. In this paper, the surface morphologies, hierarchical structures and mechanical properties of four kinds of fish scales collected from freshwater, shallow sea, and deep sea in New Zealand are investigated. The results indicate that the surface morphologies of those fish scales are similar...
4 CitationsSource
#1Peng Liu (Hunan University)H-Index: 12
#2Huigao Duan (Hunan University)H-Index: 47
Last. Tinh Quoc Bui (TITech: Tokyo Institute of Technology)H-Index: 54
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Abstract The translation of natural (or biological) structures into synthetic materials offers a spectrum of feasible pathways towards enhanced or even unprecedented material properties for a wide range of applications. Inspired by excellent mechanical properties of stomatopod dactyl club, herein we propose a new functionally graded material (FGM) model that can adequately describe the characteristics of hierarchical structures in the stomatopod dactyl club. The proposed FGM model is incorporate...
1 CitationsSource
#1Linmei Wu (University of Southern Queensland)H-Index: 10
#2Peng Liu (University of Southern Queensland)H-Index: 12
Last. Hao Wang (University of Southern Queensland)H-Index: 108
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High-performance concrete (HPC) has a complex mechanical performance due to its multiscale and multiphase com- posite structure. In this review, the various methods of multiscale modeling from different disciplines are summarized and discussed. The conjoint use of multiscale modeling and other methods such as image reconstruction technology for HPC is introduced. The failure mode modeling of HPC using multiscale methods is discussed. Lastly, the multiscale extended finite-element method (XFEM) f...
2 CitationsSource
#1Peng Liu (Hunan University)H-Index: 12
#2Deju Zhu (Hunan University)H-Index: 27
Last. Tinh Quoc Bui (TITech: Tokyo Institute of Technology)H-Index: 54
view all 4 authors...
This work is conducted to investigate the hierarchical structure, mechanical behavior and fracture resistance of grass carp scales with different water contents (hydrated and dehydrated) and load conditions (uniaxial, biaxial and punch tests). The whole cross-section of scales is investigated, and it is found that the bony layer displays discontinuity and partly embeds in collagen layer. Four different locations are considered under both tensile and punch tests. The results of the uniaxial tensi...
10 CitationsSource
#1Shuohui Yin (XTU: Xiangtan University)H-Index: 18
#2Tiantang Yu (Hohai University)H-Index: 32
Last. Sohichi Hirose (TITech: Tokyo Institute of Technology)H-Index: 16
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Buckling and vibration of FGM cracked plates with internal cracks and voids are studied.Extended isogeometric analysis with NURBS basis and Reissner-Mindlin theory is developed.The internal defects are modeled by using enrichment methods and level sets.Effects of gradation materials, crack length, etc. on critical buckling and frequency of FGM plate are significant.The accuracy of the XIGA for FGM cracked plates with internal defects is high. The critical buckling parameters and natural frequenc...
61 CitationsSource
#1Linmei Wu (Hunan University)H-Index: 10
#2Peng Liu (Hunan University)H-Index: 12
Last. D. JiaoH-Index: 1
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In this paper, the edge-based smoothed extended finite element method (ES-XFEM) is applied to the dynamic fracture analysis of two-dimensional elastic solids. The dynamic stress intensity factor (DSIF) is deduced from J-integral with the train smoothing method. With the deduced DSIF, the implementation of numerical integration and sub-smoothing regions are numerically verified in dynamic fracture behaviors of linear elastic solids. The analysis shows that ES-XFEM is an efficient numerical approa...
29 CitationsSource
#1Peng Liu (Hunan University)H-Index: 12
#2Deju Zhu (Hunan University)H-Index: 27
Last. Tinh Quoc Bui (TITech: Tokyo Institute of Technology)H-Index: 54
view all 5 authors...
Abstract The teleost fish scales, such as Grass Carp and Cyprinoid, characterize hierarchical structure which usually consists of a hard bony outer layer and a soft inner cross-ply of collagen fibrils. Each scale overlaps with other neighboring scales, thus fish skin can effectively disperse external loadings with superior flexibility. Inspired by the two-layer structure and overlapping pattern of fish scales, bio-inspired composite scale, and scale-like protection system are designed in this st...
34 CitationsSource