Jiayi Shi, (PhD Candidate)

MS (2008) Mechanical Engingeering, Harbin Institute of Technology, China
BS (2006) Mechanical Engingeering, Harbin Institute of Technology, China

Phone: (617) 373-3858
e-mail: shi.j@ husky.neu.edu

Research:
A finite element model is constructed to investigate the adhesion of thin shell structures to rigid and deformable substrate. A Dugdale-Barenblatt-Maugis (DBM) cohesive zone approximation is introduced to simulate the convoluted surface force potential. The nonlinear problem is solved numerically to generate the pressure distribution within the contact, the deformed membrane profiles, and the adhesion-delamination mechanics, which are distinctly different from the classical solid cylinder adhesion models. The model has wide applications in cell adhesion and nano-structures.

Publications:
  1. Adhesion of a compliant cylindrical shell onto a rigid substrate, J. Shi, S. Müftü, K.T. Wan, Journal of Applied Mechanics, accepted, June 2011.
  2. Deformation of a Convex Hydrogel Shell by Parallel Plate and Central Compression,2. J. Shi, M. Robitaille, S. Müftü, K-T Wan, Journal of Experimental Mechanics, DOI 10.1007/s11340-011-9514-z, June 2011.
  3. Adhesion of an Elastic Convex Shell onto a Rigid Plate, 3. J. Shi, S. Müftü, K-T Wan, Journal of Adhesion, 87(6), pp. 579 - 594, 2011.