51吃瓜app

Research

Areas of research include analytical, numerical, and experimental characterization of composite structures, multifunctional materials, piezoelectric structures, and magneto-electro-thermo-elastic composites, experimental characterization of natural and biocomposites, biomimetics, design advanced durable and smart composite materials for mining industry, battery electric mine equipment, numerical simulation of static and dynamic behavior of underground mine support systems, energy harvesting from renewable energy sources, and additive manufacturing. Current research projects include: Design advanced smart composite materials/structures using numerical modeling and AI, and design and modeling battery pack using finite element modeling for improved battery safety for underground battery electric mining equipment.

Teaching

ENGR 2076 Mechanics and Strength of Materials I

ENGR 2587 Mechanics and Strength of Materials II

ENGR 3507 Finite Element Methods

ENGR 3536 Materials and Manufacturing

ENGR 5536 Composite Materials

ENGR 5696 Special Topics Mechanical: Advanced Solid Mechanics

ENGR 5696 Special Topics Mechanical: Advanced Finite Element Methods

Publications

Selected Publications:

1. Cai M, Champaigne D, Coulombe JG, Challagulla K. (2019) “Development of two new rockbolts for safe and rapid tunneling in burst-prone ground”, Tunnelling and Underground Space Technology, 91, pp. 103010
2. Nguyen BV, Challagulla K, Venkatesh TA, Hadjiloizi DA, Georgiades AV. (2016) “Effects of porosity distribution and porosity volume fraction on the electromechanical properties of 3-3 piezoelectric foams”, Smart Materials and Structures,Vol. 25. No. 12, 15p
3. Singh J, Venkatesh TA, Challagulla KS. (2013) “Electromechanical properties of relaxor ferroelectric foams”, Applied Physics Letters, Vol. 103. No. 17, p.172901
4. Bosse PW, Challagulla KS,Venkatesh TA. (2012) “Effect of foam shape and porosity aspect ratio on the electromechanical properties of 3-3 piezoelectric foams”, Acta Materialia, Vol. 60. No. 19, p. 6464-6475
5. Challagulla KS,Venkatesh TA. (2012) “Electromechanical response of piezoelectric foams”, Acta Materialia, Vol. 60, No. 5, p. 2111-2127
6. Challagulla KS, Georgiades AV. (2011) “Micromechanical analysis of magneto-electro-thermo-elastic composite materials with applications to multilayered structures”, International Journal of Engineering Science [Special issue on Recent Advances in Micromechanics of Materials], Vol. 49. No. 1, p. 85-104
7. Challagulla KS, Georgiades AV, Kalamkarov AL. (2010) “Asymptotic homogenization modeling of smart composite generally orthotropic grid-reinforced shells: Part I - Theory”, European Journal of Mechanics – A/Solids, Vol. 29. No. 4, p. 530-540
8. Georgiades AV, Challagulla KS, Kalamkarov AL. (2010) “Asymptotic homogenization modeling of smart composite generally orthotropic grid-reinforced shells: Part II- Applications”, European Journal of Mechanics – A/Solids, Vol. 29. No. 4, p. 541-556
9. Challagulla KS, Georgiades AV, Saha GC, Kalamkarov AL. (2008) “Micromechanical analysis of grid-reinforced thin composite generally orthotropic shells”, Composites Part B: Engineering, Vol. 39, No. 4, p. 627-644
10. Challagulla KS, Georgiades AV, Kalamkarov AL. (2007) “Asymptotic homogenization model for three-dimensional network reinforced composite structures”, Journal of Mechanics of Materials and Structures, Vol. 2, No. 4, p. 613-632
11. Challagulla KS, Georgiades AV, Kalamkarov AL. (2007) “Asymptotic homogenization modeling of thin composite network structures”, Composite Structures, Vol. 79, No. 3, p. 432-444
12. Georgiades AV, Challagulla KS, Kalamkarov AL. (2006) “Modeling of the thermopiezoelastic behavior of prismatic smart composite structures made of orthotropic materials”, Composites Part B: Engineering, Vol. 37, No. 7-8, p. 569-582