Doctoral Students

2017

Dr. John Puentes

Advisor:
Professor Tim Osswald

Education
Ph.D., Mechanical Engineering, University of Wisconsin-Madison

M.S., Mechanical Engineering, University of Wisconsin-Madison

B.S., Mechanical Engineering, National University of Colombia

Research Interests
Spring Forward Effect via simulation & experimental studies.

Optimization & development of plastic tube extrusion.

Dr. Christian Schäfer

Advisor:
Professor Tim Osswald

Education
Ph.D., Mechanical Engineering, University of Wisconsin-Madison

M.Sc., Plastics and Textile Technology, RWTH Aachen University, Germany

M.Sc., Mechanical Engineering, University of Wisconsin-Madison, USA

B.Sc., Mechanical Engineering, RWTH Aachen University, Germany

Research Interests
Polymer Micropelletization, Polymer Sintering, Micro-Granular Recycling

Dr. Chuanchom Aumnate

Advisor
Professor Rudolph

Education
Ph.D, Mechanical Engineering, University of Wisconsin-Madison
M.S., Mechanical Engineering, University of Wisconsin-Madison
B.S., Material Science and Engineering, Thailand

Research Interests
Energy-efficient recycling of packaging waste

2016

Dr. Camilo Pérez

Advisor
Professor Tim Osswald

Education
Ph.D., Mechanical Engineering, University of Wisconsin-Madison (2016)
B.S., Chemical Engineering, National University of Colombia

Research Interests
Fiber Reinforced Thermoplastics Processing & Simulation
Dissertation:
TBD Link

2015

Dr. Jason McNulty

Advisor:
Professor Lih-Sheng Turng

Education:
Ph.D., Mechanical Engineering, University of Wisconsin-Maidson (2015)
B.S., Manufacturing Engineering, University of Wisconsin-Stout (2009)

Dissertation:
Enabling Precise Spatial and Temporal Control of Human Tissue Morphology and Microenvironments within Engineered Cell Culture Systems Link

Dr. Jun Peng

Advisor:
Professor Lih-Sheng Turng

Education:
Ph.D., Mechanical Engineering, University of Wisconsin-Maidson (2015)

Dissertation:
Nanocellulose as Reinforcement and Nucleating Agents for Solid and Foamed Component and as Dielectric Filler for Triboelectric Generator Link

2014

Dr. William Aquite

Advisor:
Professor Tim Osswald

Education:
Ph.D., Mechanical Engineering, University of Wisconsin-Maidson (2014)
M.S., Mechanical Engineering, University of Wisconsin-Madison (2011)
B.S., Chemical Engineering, Universidad Nacional de Colombia, Bogatá, Colombia (2009)

Dissertation:
A Novel Polymer Extrusion Micropelletization Process Link

Positions Held:
Chief Engineering - 2011 to 2014
SPE Student Chapter President - 2012 to 2014

Dr. Daniel Ramirez

Advisor
Professor Tim Osswald

Education
Ph.D., Mechanical Engineering, University of Wisconsin-Madison (2016)
M.S., Engineering, Universidad Nacional de Colombia, Bogatá, Colombia
B.S., Mechanical Engineering, Universidad Nacional de Colombia, Bogatá, Colombia

Dissertation
Study of Fiber Motion in Molding Processes by Mean of a Mechanistic Model Link

2013

Dr. Xiaofei Sun

Advisor:
Professor Lih-Sheng Turng

Education:
Ph.D., Mechanical Engineering, University of Wisconsin-Maidson (2013)

Dissertation:
Novel Injection Molding Foaming Approaches Using Gas-Laden Pellets

2010

Dr. Hashim Al-Zain

Advisor:
Professor Tim Osswald

Education:
Ph.D., Mechanical Engineering, University of Wisconsin-Madison (2010)

Dissertation:
Effect of Fountain Flow on Fiber-Matrix Seperation in Fiber Reinforced Injection Molded Parts Link

Dr. Lori Holmes

Advisor:
Professor Tim Osswald

Education:
Ph.D., Mechanical Engineering, University of Wisconsin-Madison (2010)
M.S., Chemical Engineering, Vanderbilt University (1997)
B.S., Chemical Engineering, Clarkson University

Dissertation:
Modeling 3D Viscoelastic Secondary Flows in Extrusion Link

2009

Dr. Ivan D. Lopez Gomez

Advisor:
Professor Tim Osswald

Education:
Ph.D., Mechanical Engineering, University of Wisconsin-Madison (2010)
M.S., Chemical Engineering, Vanderbilt University (1997)
B.S., Chemical Engineering, Clarkson University

Dissertation:
Modeling of Polymer Processing using the Radial Function Method (RFM) Link

Dr. Alejandro Londoño Hurtado

Advisor:
Professor Tim Osswald

Education:
Ph.D., Mechanial Engineering, University of Wisconsin-Madison (2009)

Dissertation:
Mechanistic Models for Fiber Flow Link

Dr. Rodrigo Orozco

Advisor:
Professor Tim Osswald

Education:
Ph.D., Mechanical Engineering, University of Wisconsin-Madison (2009)

Dissertation:
Viscoelastic stress analysis of polymer composite structures using the Radial Basis Functions Method Link

2008

Dr. Alejandro Roldán-Alzate

Advisor:
Professor Tim Osswald

Education:
Ph.D., Mechanical Engineering, University of Wisconsin-Madison (2008)
M.S., Mechanical Engineering, University of Wisconsin-Madison (2005)
B.S., Biomedical/Medical Engineering, Universidad CES, Medellín, Colombia (2002)

Dissertation:
Simulation of Physiological Flows Link

Dr. Javier C. Cruz

Advisor:
Professor Tim Osswald

Education:
Ph.D., Materials Science, University of Wisconsin-Madison (2008)
B.S., Chemical Engineering, Universidad de Puerto Rico, San Juan, Puerto Rico (2004)

Dissertation:
Advanced Cure Monitoring and Analysis for Optimization of Thermoset Resin Processes Link

Dr. Brian E. Ralston

Advisor:
Professor Tim Osswald

Education:
Ph.D., Mechanical Engineering, University of Wisconsin-Madison (2008)
M.Eng., Polymer Engineering & Science, University of Wisconsin-Madison (2006)
M.S., Entomology, The Ohio State University, Columbus, Ohio (2001)
B.S., Entomology, The Ohio State University, Columbus, Ohio (1998)

Dissertation:
Soy Protein Plastics: Material Formulation, Processing and Properties Link

2004

Dr. Juan Hernandez-Ortiz

Advisor:
Professor Tim Osswald

Education:
Ph.D., Mechanical Engineering, University of Wisconsin-Madison (2004)

Dissertation:
Boundary Integral Equations for Viscous Flows: Non-Newtonian Behavior and Solid Inclusions Link