A visco-poroelastic theory for polymeric gels
نویسندگان
چکیده
منابع مشابه
Poroelastic relaxation indentation of thin layers of gels
We develop a method of poroelastic relaxation indentation (PRI) to characterize thin layers of gels. The solution to the time-dependent boundary-value problem is obtained in a remarkably simple form, so that the force-relaxation curve obtained by indenting a gel readily determines all the poroelastic constants of the gel—the shear modulus, Poisson’s ratio, and the effective diffusivity. The met...
متن کاملA theory of coupled diffusion and large deformation in polymeric gels
A large quantity of small molecules may migrate into a network of long polymers, causing the network to swell, forming an aggregate known as a polymeric gel. This paper formulates a theory of the coupled mass transport and large deformation. The free energy of the gel results from two molecular processes: stretching the network, and mixing the network with the small molecules. Both the small mo...
متن کاملInhomogeneous Large Deformation Kinetics of Polymeric Gels
WILLIAM TOH∗, ZISHUN LIU†,§, TENG YONG NG∗ and WEI HONG‡ ∗School of Mechanical and Aerospace Engineering Nanyang Technological University 50 Nanyang Avenue, Singapore 639798, Singapore †International Center for Applied Mechanics State Key Laboratory for Strength and Vibration of Mechanical Structures, Xi’an Jiaotong University No. 28, West Xianning Road, Xi’an Shaanxi 710049, P. R. China ‡Depar...
متن کاملSkinfold creep under load of caliper. Linear visco- and poroelastic model simulations.
PURPOSE This paper addresses the diagnostic idea proposed in [11] to measure the parameter called rate of creep of axillary fold of tissue using modified Harpenden skinfold caliper in order to distinguish normal and edematous tissue. Our simulations are intended to help understanding the creep phenomenon and creep rate parameter as a sensitive indicator of edema existence. The parametric analys...
متن کاملCombining ATRP and FRP Gels: Soft Gluing of Polymeric Materials for the Fabrication of Stackable Gels
Stackable gels comprised of layers of dissimilar polymers were synthesized by combining conventional free radical polymerization (FRP) and atom transfer radical polymerization (ATRP) using two approaches: (i) polymerization of a pre-gel solution containing a monomer and cross-linker introduced on top of a previously prepared gel, and (ii) simultaneous polymerization of two immiscible pre-gel so...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
سال: 2012
ISSN: 1364-5021,1471-2946
DOI: 10.1098/rspa.2012.0385