Mechanical Engineering


Zihui Xia

Zi Hui Xia profile image

Professor Emeritus

Office: 5-08L Mechanical Engineering
fax     : (780) 492-2200
Phone: (780) 492-3870

Education:

M.Sc. (Tsinghua)
Ph.D. (Tsinghua)

Position Summary/ Research Interest:

Dr. Xia’s research interests cover a wide range in solid and applied mechanics and material engineering. The main research areas are: Experimental characterization and theoretical prediction of mechanical properties of materials, especially under multiaxial loading conditions and for advanced engineering materials;

Development of constitutive models for different types of materials (elasto-plasticity, viscoelasticity and viscoplasticity);

Study of mechanisms and modeling of damages, and fatigue life prediction for engineering materials;

The materials studied include metals and alloys, polymers, metal matrix composites and fiber reinforced polymeric composites.

Current Research Projects

Dr. Xia’s current research activities are focused on polymers, fibre reinforced polymeric composites and light weight metals. The main research topics are:

Time- and loading history-dependent mechanical behaviour of polymers and polymeric composites under multiaxial loading conditions;

Micro/meso/macro coupled multi-scale nonlinear progressive damage analysis method for laminated and textile composite structures;

Multiaxial fatigue life prediction methodology for polymers and polymer composites;

Development of viscoelastic constitutive model for polymers and for polymeric composites;

Numerical simulation of forming processes for magnesium in automobile applications;
Mechanical modeling and characterization of medical stents.

Publications:

1. Z. Xia, X. Shen and F. Ellyin (2006) " An Assessment of Nonlinearly Viscoelastic Constitutive Models for Cyclic loading: The Effect of a General Loading/Unloading Rule", Mechanics of Time-Dependent Materials, Vol. 9, 281-300.
2. Ellyin, F., Ozah, F. and Xia, Z. (2006) “3-D Modelling of Cyclically Loaded Composite Patch Repair of a Cracked Plate”, Composite Structures, (In Press)
3. Ellyin, F. and Xia, Z. (2006), “Nonlinear Viscoelastic Constitutive Model for Thermoset Polymers”, ASME journal of Engineering Materials and Mechanics, Special Issue, (Invited Paper),in press.
4. Ellyin, F. and Xia, Z. (2006), “Challenges in Developing a General Constitutive Relation for Cyclic Loading”, MP Materialprufung (Materials Testing) Invited Paper, Vol.48, 2006, pp.14-20.
5. Z. Xia, C. Zhou, Q. Yong and X. Wang (2006) “On Selection of Repeated Unit Cell Model and Application of Unified Periodic Boundary Conditions in Micro-Mechanical Analysis of Composites”, International Journal of Solids and Structures, Vol. 43, 266-278.
6. F. Ellyin, Z. Xia and C.-S. Li (2006), “Fatigue Damage of Particle Reinforced Metal Matrix Composites”, in: Fracture of Composites, M. Guagliano and M.H. Aliabadi (eds.), WIT Press Southampton, UK, Chapter 4, 73-103.
7. G. Tao and Z. Xia (2005), “A Non-Contact Real-Time Strain Measurement and Control System for Multiaxial Cyclic/Fatigue Tests of Polymer Materials by Digital Image Correlation Method”, Polymer Testing, Vol. 24, 844-855.
8. Y. Zhang and Z. Xia (2005), “Micromechanical Analysis of Interphase Damage for Fiber Reinforced Composite Laminates”, CMC: Computers, Materials & Continua, Vol. 2, 213-226.
9. Y. Zhang, Z. Xia and F. Ellyin (2005) “Viscoelastic and Damage Analyses of Fiber Reinforced Polymer Laminates by Micro/Mesomechanical Modeling”, Journal of composite Materials, Vol. 39, 2001-2022.
10. Y. Zhang, Z. Xia and F. Ellyin (2005) “Nonlinear viscoelastic micromechanical analysis of fibre reinforced polymer laminates with damage evolution”, International Journal of Solids and Structures, Special Issue on Micromechanics of Materials (Invited Paper), Vol. 42, 591-604.
11. Z. Xia, X. Shen and F. Ellyin (2005) “Cyclic Deformation Behavior of an Epoxy Polymer, Part II: Prediction of Constitutive Model”, Polymer Engineering & Science, Vol. 45, 103-113.
12. Z. Xia, X. Shen and F. Ellyin (2005) “Biaxial Cyclic Deformation of an Epoxy Resin: Experiments and Constitutive Modeling”, Journal of Material Sciences, Vol 40, 643-654.
13. X. Shen, Z. Xia and F. Ellyin (2004) “Cyclic Deformation Behavior of an Epoxy Polymer, Part I: Experimental Investigation”, Polymer Engineering & Science, Vol. 44, 2240-2246.
14. Y. Zhang, Z. Xia and F. Ellyin (2004) “Evolution and influence of residual stresses/strains of fiber reinforced laminates”, Composites Science and Technology, V. 64, 1613-1621.
15. H.J. Kwon, P.-Y.B. Jar and Z. Xia (2004) “Residual Toughness of Poly(acrylonitrile-butadiene-styrene) (ABS) after Fatigue Loading – Effect of Uniaxial Fatigue Loading”, Journal of Material Sciences, Vol. 39, 4821-4828.
16. H.J. Kwon, P.-Y.B. Jar and Z. Xia (2004) “Characteraization of Bi-Axial Fatigue Resistance of Polymer Plates”, Journal of Material Sciences, Vol. 40, 965-972.
17. Z. Xia, Y Zhang and F. Ellyin (2003) “A Unified Periodical Boundary Condition for Representative Volume Elements of Composites and Applications”, International Journal of Solids and Structures, Vol. 40, 1907-1921.
18. Y. Hu, Z. Xia and F. Ellyin (2003) “Deformation Behavior of an Epoxy Resin Subjected to Multiaxial Loadings, Part I: Experimental Investigations”, Polymer Engineering & Science, V. 43, 721-733.
19. Z. Xia, Y. Hu and F. Ellyin (2003) “Deformation Behavior of an Epoxy Resin Subjected to Multiaxial Loadings, Part II: Constitutive Modeling and Predictions”, Polymer Engineering & Science, V. 43, 734-748.
20. X. Han, F. Ellyin and Z. Xia (2002) “Interaction among interface, multiple cracks and dislocations”, International Journal of Solids and Structures, V. 39, 1575-1590.
21. F. Ellyin, Z. Xia and (2002) “Viscoelastic Micromechanical Modeling of Free Edge and Time Effects in Glass Fiber/Epoxy Cross-Ply Laminates”, Composites, Part A: Applied Science and Manufacturing, V. 33, 399-409.
22. Y. Hu, F. Ellyin and Z. Xia (2001) “An Experimental Investigation of Normal and Shear Stress Interaction of an Epoxy Resin and Model Predictions”, Polymer Engineering and Science, V. 41, 2047-2060.
23. F. Ellyin and Z. Xia (2001) ‘Rate-dependent constitutive modelling and micro-mechanical analysis of fibre-reinforced metal-matrix composites’, Journal of the Mechanics and Physics of Solids, V. 49/11, 2543-2555.
24. X. Han, F. Ellyin and Z. Xia (2001), ‘Interface crack between two different viscoelastic media’, International Journal of Solids and Structures, V. 38, 7981-7997.
25. X. Han, F. Ellyin and Z. Xia (2001), “A crack near the interface of bonded elastic-viscoelastic planes”, International Journal of Solids and Structures, V. 38, 3453-3468.
26. Y. Chen, Z. Xia and F. Ellyin (2001), “Evolution of Residual Stresses Induced during Curing Processing Using a Viscoelastic Micromechanical Model”, Journal of Composite Materials, V. 35, 522-542.
27. Z. Xia, Y. Chen and F. Ellyin, (2000), “A Meso/Micro-Mechanical Model for Damage Progression in Glass-Fiber/Epoxy Cross-Ply by Finite Element Analysis”, Composites Science and Technology, V. 60, 1171-1179.
28. G. Meijer, F. Ellyin and Z. Xia, (2000), “Aspects of Residual Thermal Stress/Strain in Particle Reinforced Metal Matrix Composites”, Composites Part B: engineering, V. 31, 29-37.
29. Y. Hu, Z. Xia and F. Ellyin, (2000), “Mechanical Behaviour of an Epoxy Resin under Multiaxial Loadings, Part I: Experimental Study”, Polymers & Polymer Composites, V. 8, 11-18.
30. Y. Hu, Z. Xia and F. Ellyin, (2000), “Mechanical Behaviour of an Epoxy Resin under Multiaxial Loadings, Part II: Comparison of Viscoelastic Constitutive Model Predictions”, Polymers & Polymer Composites, V. 8, 157-166.
31. F. Ellyin, C-S. Li and Z. Xia, (2000), “Effect of In-Plane Constraint on Mechanical Behaviour of a Metallic Composite in Biaxial Stress States”, Composites Part B: engineering, V. 31, 309-318.
32. J. D. Wolodko, Z. Xia and F. Ellyin, (2000), “Analysis of Al/Al2O3 Metal Matrix Composites under Biaxial Cyclic Loading Using a Digital Image Based Finite Element Method”, Materials Science and Technology”, V. 16, 837-842.