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Qing Liu, Ph.D.
 
Jun Ma Ph.D.
  
James A. Donovan Ph. D.
 
Xunjun Wen, Ph.D
 

 

 
Junhong Chen, Ph.D. Junhong Chen, Ph.D.
 
Liming Dai, Ph.D.
 

 

 

 

James A. Donovan, Ph.D.

Professor Emeritus, Department of Mechanical and Industrial Engineering University of Massachusetts
Amherst, MA 01002
Email: donovan@ecs.umass.edu

 
 

EDUCATION

1966 PhD, Metallurgical Engineering, University of Notre Dame
1959 BS, Metallurgical Engineering, University of Notre Dame


POSITIONS HELD

Professor, Dept. of Mechanical and Industrial Engineering1986-2003
Associate Professor, Dept. of Mechanical and Industrial Engineering 1979-1986
Staff Metallurgist, Savannah River Laboratory, DuPont Inc., Aiken, SC 1966-1979
Visiting Professor, Dept. Metallurgical Engineering, University of Notre Dame 1977-1978
Metallurgical Engineer, General Electric Co., 1961-1962


PROFESSIONAL RECOGNITION

Member of US Government team investigating Ford-Bridgestone tire problem.
Consultant Civilian Research and Development Foundation, reviewed
research proposals, site visits prior to awarding grants and instructor in technical communication in Russia.
Turned down Editor, Rubber Chemistry and Technology.
Legal expert witness in patent and materials failure cases.


BIOGRAPHICAL SKETCH

Jim began his professional career as an intern at the US Steel 
Research Lab (1963)where he developed acoustic emission equipment, 
under the direction of Dr. Robert Fisher. They were the first to hear 
dislocations move during yielding of steel. In grad school under the 
direction of Drs. B. Cullity and C. Allen he developed equipment to 
demonstrate the affect of  moving magnetic domain walls on 
dislocations.  And, analyzed the results for iron and nickel in terms 
of the magnetostrictive strains and strain in the dislocation field, 
and temperature dependence.  Moving domain walls accelerate creep in 
nickel.

After getting his PhD he worked at the Savannah River Lab on hydrogen 
embrittlement and showed that dislocations transport hydrogen, and 
that the dynamics are in accord with temperature and strain rate 
effects observed for hydrogen embrittlement. An important problem at 
SRL was the development of stress corrosion cracks in the radioactive 
waste tanks. Jim was asked to work on this problem and devise a 
failure safe plan for operating the waste farm.  Using the concepts of 
fracture mechanics to study the stress corrosion and to evaluate the 
probability of fracture of the tanks he provided the technical basis 
for the development of a operating plan ultimately accepted by the 
government.

In 1979 when he joined UMass he switched his research interests from 
metals to polymers.  But, kept his interest in fracture and 
environment stress cracking. He studied the effect of environment on 
fracture of glassy and semi-crystalline polymers and the role of craze 
growth.  He demonstrated tearing instability in polymers and developed 
a new fracture mechanics specimen that has the unique property that 
the crack driving force is independent of the crack size. In studies 
of carbon black reinforcement he showed with synchrotron radiation 
that carbon black in natural rubber enhanced the strain induced 
crystallization which increased the modulus.  He and his students 
applied the concepts of percolation theory to explain the effect of 
two phase rigid polymers and carbon black reinforcement of natural 
rubber.

Finally, working as a consultant for the Civilian Research and 
Development Foundation he developed an approach to facilitate the 
communication of research results.  It works within a research group 
and also provides an efficient basis for preparing technical 
presentations and papers.  This was based on his extensive experience 
working with his graduate students.


SELECTED PUBLICATIONS


J-Integral and Crack Opening as Crack Initiation Criteria in Rubber,  
RUBB. CHEM AND TECH, 59 (1986), 787-799 (with R.F. Lee).

Crack Size Independence of Crack Driving Force in Buckled Plate 
Specimen, J of MAT. SCI., 24, (1989), 816-820, (with P. Chang).

Deformation and Energy Absorption of  Polymer Foams, POLYMER ENG AND 
SCI, 34, (1994) 857-864 (with P. Stupak).

Strain Crystallization and Fracture of Elastomers, Invited Review, J 
of SOC. of  RUBBER INDUSTRY, Japan, (2002).

Adhesion of Natural Rubber to Clean and Treated Organosilane Treated 
Glass, INT. SAMPE TECH CONF,  32, (2000)  427-438, (with L. Gong).


 

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