Teaching Award to Prof. Zehnder
Professor Zehnder was recognized by the College of Engineering as an outstanding teacher and is the winner of the Dennis G. Shepherd Excellence in Teaching Award in 2018.
Author: Alan Taylor Zehnder
New paper on computational model of blistering of polyimide
This paper pulls together our work on blistering, high temperature viscoelastic and viscoplastic deformation, hydrolytic degradation and plasticization to model blistering of moisture saturated PI under rapid heating. See https://authors.elsevier.com/a/1VnJX_rVFH5pm7. Read More …
Congratulations to Yi Xu, Ph.D.
Yi Xu successfully defended his Ph.D. thesis on the performance and degradation of polyimides under extreme conditions. This is the first work to study the combined effects of hydrolytic degradation, Read More …
New results on hydrolytic degradation of polyimides
Our recently published paper, “Moisture Degradation Effects on the Mechanical Properties of HFPE-II-52 Polyimide: Experiments and Modeling”, Experimental Mechanics, 2017, DOI: 10.1007/s11340-017-0281-3 is available on-line at: http://rdcu.be/qJoG. We find that Read More …
On-line report on torsional fracture
I have posted a report that updates our work on fracture of notched rods in torsion. This paper describes additional experiments and computational simulations of the problem. The paper is Read More …
New paper on high temperature properties of polyimide
Yi Xu, Peeyush Bhargava, Alan Zehnder, Time and temperature dependent mechanical behavior of HFPE-II-52 polyimide at high temperature, Mechanics of Materials, Volume 100, September 2016, Pages 86-95, http://dx.doi.org/10.1016/j.mechmat.2016.06.009 Free access Read More …
2D and 3D crack growth simulations posted
I’ve posted several animations of simulations of crack growth in 2- and 3D on YouTube. See https://www.youtube.com/channel/UCFLFIUePpdMujR-5PIsRTew
Fracture Mechanics text updates
A few corrections to the Fracture Mechanics text have been posted.