TY  - JOUR
AU  - Tsui, C. P.
AU  - Tang, C. Y.
AU  - Guo, Y. Q.
AU  - Uskoković, Petar
AU  - Fan, Jian-Ping
AU  - Gao, B.
PY  - 2010
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1615
AB  - The mechanical properties of hydroxyapatite related macroporous biocomposites (MPBs) are influenced by a number of factors, such as the pore size, the filler content and the properties of the matrix and the inclusion. Failure often occurs when the strength of the implant cannot bear the applied mechanical load. In this study, the effects of filler content on the mechanical properties of MPBs have been investigated. A finite element (FE) unit cell model of a macroporous hydroxyapatite-polyetheretherketone (HA-PEEK) biocomposite structure with uniform and interconnected pores has been constructed. In the FE model, the HA particles were assumed to have random distribution, and particle volume fraction would be varied in the PEEK matrix. The material behaviours of both HA and PEEK have been implemented in the ABAQUS finite element code. HA was modelled to exhibit elastic behaviour and undergo plastic softening to a residual strength when a critical stress was reached, while the PEEK matrix would follow elastic-plastic behaviour. The macroscopic compressive stress-strain relations of the macroporous biocomposite structures have been predicted. Increasing particle volume fraction could lead to an increase in the compressive elastic modulus of the structures but a reduction in the compressive strength. The von Mises stress distribution and the effect of stress concentration in the structures with different filler content are also discussed. The proposed model could provide macro-structural and microscopic information of the macroporous biocomposite structure to the designers in order to facilitate the fabrication of this kind of structure with optimum mechanical properties.
PB  - Vsp Bv, Leiden
T2  - Composite Interfaces
T1  - Effects of Filler Content on Mechanical Properties of Macroporous Composites
EP  - 579
IS  - 5-7
SP  - 571
VL  - 17
DO  - 10.1163/092764410X513440
ER  - 

@article{
author = "Tsui, C. P. and Tang, C. Y. and Guo, Y. Q. and Uskoković, Petar and Fan, Jian-Ping and Gao, B.",
year = "2010",
abstract = "The mechanical properties of hydroxyapatite related macroporous biocomposites (MPBs) are influenced by a number of factors, such as the pore size, the filler content and the properties of the matrix and the inclusion. Failure often occurs when the strength of the implant cannot bear the applied mechanical load. In this study, the effects of filler content on the mechanical properties of MPBs have been investigated. A finite element (FE) unit cell model of a macroporous hydroxyapatite-polyetheretherketone (HA-PEEK) biocomposite structure with uniform and interconnected pores has been constructed. In the FE model, the HA particles were assumed to have random distribution, and particle volume fraction would be varied in the PEEK matrix. The material behaviours of both HA and PEEK have been implemented in the ABAQUS finite element code. HA was modelled to exhibit elastic behaviour and undergo plastic softening to a residual strength when a critical stress was reached, while the PEEK matrix would follow elastic-plastic behaviour. The macroscopic compressive stress-strain relations of the macroporous biocomposite structures have been predicted. Increasing particle volume fraction could lead to an increase in the compressive elastic modulus of the structures but a reduction in the compressive strength. The von Mises stress distribution and the effect of stress concentration in the structures with different filler content are also discussed. The proposed model could provide macro-structural and microscopic information of the macroporous biocomposite structure to the designers in order to facilitate the fabrication of this kind of structure with optimum mechanical properties.",
publisher = "Vsp Bv, Leiden",
journal = "Composite Interfaces",
title = "Effects of Filler Content on Mechanical Properties of Macroporous Composites",
pages = "579-571",
number = "5-7",
volume = "17",
doi = "10.1163/092764410X513440"
}

Tsui, C. P., Tang, C. Y., Guo, Y. Q., Uskoković, P., Fan, J.,& Gao, B.. (2010). Effects of Filler Content on Mechanical Properties of Macroporous Composites. in Composite Interfaces
Vsp Bv, Leiden., 17(5-7), 571-579.
https://doi.org/10.1163/092764410X513440

Tsui CP, Tang CY, Guo YQ, Uskoković P, Fan J, Gao B. Effects of Filler Content on Mechanical Properties of Macroporous Composites. in Composite Interfaces. 2010;17(5-7):571-579.
doi:10.1163/092764410X513440 .

Tsui, C. P., Tang, C. Y., Guo, Y. Q., Uskoković, Petar, Fan, Jian-Ping, Gao, B., "Effects of Filler Content on Mechanical Properties of Macroporous Composites" in Composite Interfaces, 17, no. 5-7 (2010):571-579,
https://doi.org/10.1163/092764410X513440 . .

TY  - JOUR
AU  - Tsui, C. P.
AU  - Chen, D. Z.
AU  - Tang, C. Y.
AU  - Uskoković, Petar
AU  - Fan, Jian-Ping
AU  - Xie, X. L.
PY  - 2006
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/989
AB  - A three-dimensional three-phase finite element unit cell model has been applied to predict the debonding damage process of particulate polymer composites (PPC) during tensile deformation. The model consists of a particle, an interface and a polymer matrix. The particle-matrix debonding process has been simulated by using a particle-matrix debonding criterion and a vanishing finite element technique. For verification of the predicted results, the results obtained in the in situ SEM experiments of our previous study on glass beads reinforced modified polyphenylene oxide (GB/PPO) were used The predicted results are in good agreement with the experimental micro-scale tensile debonding-damage process. Anisotropic damage in materials like PPC is very difficult to measure by conventional experimental methods. In order to provide anisotropic damage information of the damaged composites, this was amongst the first time to predict the effective elastic properties of PPC in different principal directions by performing a virtual load-unload test on the partially debonded cell model. Some predicted results would be compared with those of experimental load-unload test.
PB  - Elsevier Sci Ltd, Oxford
T2  - Composites Science and Technology
T1  - Prediction for debonding damage process and effective elastic properties of glass-bead-filled modified polyphenylene oxide
EP  - 1531
IS  - 11-12
SP  - 1521
VL  - 66
DO  - 10.1016/j.compscitech.2005.11.022
ER  - 

@article{
author = "Tsui, C. P. and Chen, D. Z. and Tang, C. Y. and Uskoković, Petar and Fan, Jian-Ping and Xie, X. L.",
year = "2006",
abstract = "A three-dimensional three-phase finite element unit cell model has been applied to predict the debonding damage process of particulate polymer composites (PPC) during tensile deformation. The model consists of a particle, an interface and a polymer matrix. The particle-matrix debonding process has been simulated by using a particle-matrix debonding criterion and a vanishing finite element technique. For verification of the predicted results, the results obtained in the in situ SEM experiments of our previous study on glass beads reinforced modified polyphenylene oxide (GB/PPO) were used The predicted results are in good agreement with the experimental micro-scale tensile debonding-damage process. Anisotropic damage in materials like PPC is very difficult to measure by conventional experimental methods. In order to provide anisotropic damage information of the damaged composites, this was amongst the first time to predict the effective elastic properties of PPC in different principal directions by performing a virtual load-unload test on the partially debonded cell model. Some predicted results would be compared with those of experimental load-unload test.",
publisher = "Elsevier Sci Ltd, Oxford",
journal = "Composites Science and Technology",
title = "Prediction for debonding damage process and effective elastic properties of glass-bead-filled modified polyphenylene oxide",
pages = "1531-1521",
number = "11-12",
volume = "66",
doi = "10.1016/j.compscitech.2005.11.022"
}

Tsui, C. P., Chen, D. Z., Tang, C. Y., Uskoković, P., Fan, J.,& Xie, X. L.. (2006). Prediction for debonding damage process and effective elastic properties of glass-bead-filled modified polyphenylene oxide. in Composites Science and Technology
Elsevier Sci Ltd, Oxford., 66(11-12), 1521-1531.
https://doi.org/10.1016/j.compscitech.2005.11.022

Tsui CP, Chen DZ, Tang CY, Uskoković P, Fan J, Xie XL. Prediction for debonding damage process and effective elastic properties of glass-bead-filled modified polyphenylene oxide. in Composites Science and Technology. 2006;66(11-12):1521-1531.
doi:10.1016/j.compscitech.2005.11.022 .

Tsui, C. P., Chen, D. Z., Tang, C. Y., Uskoković, Petar, Fan, Jian-Ping, Xie, X. L., "Prediction for debonding damage process and effective elastic properties of glass-bead-filled modified polyphenylene oxide" in Composites Science and Technology, 66, no. 11-12 (2006):1521-1531,
https://doi.org/10.1016/j.compscitech.2005.11.022 . .

TY  - JOUR
AU  - Tang, C. Y.
AU  - Tsui, C. P.
AU  - Chen, D. Z.
AU  - Uskoković, Petar
AU  - Fan, Jian-Ping
AU  - Xie, Xiao-Lin
AU  - Lee, Eric Wai-Ming
PY  - 2006
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/862
AB  - A micro-meso-macro finite element approach has been developed for simulating the macro-scale damage coupled deformation in a particulate polymer composite (PPC) based structure under tension. A damage model for the PPC structure was developed to define the debonding damage behavior of the structure. The computational results determined in our previous studies by using finite element meso-cell modeling technique were used as the input parameters of the damage model and definition of the constitutive behavior of PPC. A user-defined subroutine VUMAT describing the damage-coupled constitutive behaviour of PPC for defining the material properties of the finite elements for the structure was then built and incorporated into the ABAQUS finite element code. A case example has been given to demonstrate the proposed approach. The macro-scale damage process in the simulated component was found to be reasonable.
PB  - 12th International Manufacturing Conference in China, IMCC2006
T2  - Materials Science Forum
T1  - Damage analysis of particulate polymer composites based structure by using micro-meso-macro finite element approach
EP  - 652
SP  - 648
VL  - 532-533
DO  - 10.4028/0-87849-421-9.648
ER  - 

@article{
author = "Tang, C. Y. and Tsui, C. P. and Chen, D. Z. and Uskoković, Petar and Fan, Jian-Ping and Xie, Xiao-Lin and Lee, Eric Wai-Ming",
year = "2006",
abstract = "A micro-meso-macro finite element approach has been developed for simulating the macro-scale damage coupled deformation in a particulate polymer composite (PPC) based structure under tension. A damage model for the PPC structure was developed to define the debonding damage behavior of the structure. The computational results determined in our previous studies by using finite element meso-cell modeling technique were used as the input parameters of the damage model and definition of the constitutive behavior of PPC. A user-defined subroutine VUMAT describing the damage-coupled constitutive behaviour of PPC for defining the material properties of the finite elements for the structure was then built and incorporated into the ABAQUS finite element code. A case example has been given to demonstrate the proposed approach. The macro-scale damage process in the simulated component was found to be reasonable.",
publisher = "12th International Manufacturing Conference in China, IMCC2006",
journal = "Materials Science Forum",
title = "Damage analysis of particulate polymer composites based structure by using micro-meso-macro finite element approach",
pages = "652-648",
volume = "532-533",
doi = "10.4028/0-87849-421-9.648"
}

Tang, C. Y., Tsui, C. P., Chen, D. Z., Uskoković, P., Fan, J., Xie, X.,& Lee, E. W.. (2006). Damage analysis of particulate polymer composites based structure by using micro-meso-macro finite element approach. in Materials Science Forum
12th International Manufacturing Conference in China, IMCC2006., 532-533, 648-652.
https://doi.org/10.4028/0-87849-421-9.648

Tang CY, Tsui CP, Chen DZ, Uskoković P, Fan J, Xie X, Lee EW. Damage analysis of particulate polymer composites based structure by using micro-meso-macro finite element approach. in Materials Science Forum. 2006;532-533:648-652.
doi:10.4028/0-87849-421-9.648 .

Tang, C. Y., Tsui, C. P., Chen, D. Z., Uskoković, Petar, Fan, Jian-Ping, Xie, Xiao-Lin, Lee, Eric Wai-Ming, "Damage analysis of particulate polymer composites based structure by using micro-meso-macro finite element approach" in Materials Science Forum, 532-533 (2006):648-652,
https://doi.org/10.4028/0-87849-421-9.648 . .

TY  - JOUR
AU  - Tsui, C. P.
AU  - Chen, D. Z.
AU  - Tang, C. Y.
AU  - Uskoković, Petar
AU  - Fan, Jian-Ping
PY  - 2005
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/830
AB  - A three-dimensional finite element cell modeling technique has been applied to predict the particle-matrix debonding process of particulate polymer composite (PPC) subject to simple shear loading. The particle-matrix debonding in PPC has been simulated by using two different debonding criteria: stress-based and strain-based. The stress-based debonding criterion uses the hydrostatic tensile stress as a critical stress while the strain-based one uses the equivalent plastic strain at failure as a critical factor for element failure. In this analysis, glass beads-reinforced polyphenylene oxide (GB/PPO) has been used for verification of the predicted results. As compared with the results from scanning electron microscopy (SEM) based in situ simple shear test of GB/PPO composite, the model with the stress-based criterion is much more appropriate for simulation of the shear damage process. The importance of selecting an appropriate debonding criterion for achieving correct simulation results could be revealed. The essential information like the threshold strain for initiation of shear damage could then be acquired from the model with the verified stress-based debonding criterion.
PB  - Elsevier Science Sa, Lausanne
T2  - Journal of Materials Processing Technology
T1  - Prediction for debonding damage process of glass beads-reinforced modified polyphenylene oxide under simple shear
EP  - 437
IS  - 2-3
SP  - 429
VL  - 167
DO  - 10.1016/j.jmatprotec.2005.06.012
ER  - 

@article{
author = "Tsui, C. P. and Chen, D. Z. and Tang, C. Y. and Uskoković, Petar and Fan, Jian-Ping",
year = "2005",
abstract = "A three-dimensional finite element cell modeling technique has been applied to predict the particle-matrix debonding process of particulate polymer composite (PPC) subject to simple shear loading. The particle-matrix debonding in PPC has been simulated by using two different debonding criteria: stress-based and strain-based. The stress-based debonding criterion uses the hydrostatic tensile stress as a critical stress while the strain-based one uses the equivalent plastic strain at failure as a critical factor for element failure. In this analysis, glass beads-reinforced polyphenylene oxide (GB/PPO) has been used for verification of the predicted results. As compared with the results from scanning electron microscopy (SEM) based in situ simple shear test of GB/PPO composite, the model with the stress-based criterion is much more appropriate for simulation of the shear damage process. The importance of selecting an appropriate debonding criterion for achieving correct simulation results could be revealed. The essential information like the threshold strain for initiation of shear damage could then be acquired from the model with the verified stress-based debonding criterion.",
publisher = "Elsevier Science Sa, Lausanne",
journal = "Journal of Materials Processing Technology",
title = "Prediction for debonding damage process of glass beads-reinforced modified polyphenylene oxide under simple shear",
pages = "437-429",
number = "2-3",
volume = "167",
doi = "10.1016/j.jmatprotec.2005.06.012"
}

Tsui, C. P., Chen, D. Z., Tang, C. Y., Uskoković, P.,& Fan, J.. (2005). Prediction for debonding damage process of glass beads-reinforced modified polyphenylene oxide under simple shear. in Journal of Materials Processing Technology
Elsevier Science Sa, Lausanne., 167(2-3), 429-437.
https://doi.org/10.1016/j.jmatprotec.2005.06.012

Tsui CP, Chen DZ, Tang CY, Uskoković P, Fan J. Prediction for debonding damage process of glass beads-reinforced modified polyphenylene oxide under simple shear. in Journal of Materials Processing Technology. 2005;167(2-3):429-437.
doi:10.1016/j.jmatprotec.2005.06.012 .

Tsui, C. P., Chen, D. Z., Tang, C. Y., Uskoković, Petar, Fan, Jian-Ping, "Prediction for debonding damage process of glass beads-reinforced modified polyphenylene oxide under simple shear" in Journal of Materials Processing Technology, 167, no. 2-3 (2005):429-437,
https://doi.org/10.1016/j.jmatprotec.2005.06.012 . .