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Tim Jaglinski
Department of Materials Science
212 Engineering Research Building(ERB) 1500 Engineering Drive, Madison, WI 53706-1687 Office - 212 ERB, Phone (608) 263-9509, Fax (608) 63-7451 |
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Background
Clarkson niversity, B.S., 2000, Aeronautical Engineering. University of Wisconsin, Madison, M.S., Materials Science, 2002. University of Wisconsin, Madison, Ph.D.., Materials Science, 2006. |
Old E-Mail Should work through August '06 Temporary E-Mail (will work forever, but will not be primary)  |
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I am now in the process of moving to my new job at the
Institute for Shock Physics
in Pullman, WA. My old contact information is still listed in this page as I do not have an address in Pullman as yet.
My old cell phone number will also be out of commision as of 6/16/06. If you need to contact me, please send an e-mail to the UW-Alumni address listed above. Otherwise, contact the Institute and they will forward to me. I will be posting new info as soon as get it so stay tuned...... Graduate Research Areas Graduate Advisor: Prof. Rod Lakes Creep and Relaxation in Die-Cast Alloys Currently, small engine design is done with the designer's awareness of the viscoelastic nature of their materials, however experimental data for die-cast alloys is sparse. Despite the lack of high-temperature data, the die-casting process is still widely used due to its ability to obtain tight part tolerances for high volumes at low-cost. More than ever, the market is demanding small engines that run with greater efficiency and with little or no post-factory maintenance over the operating life of the engine. These increased performance demands are forcing designers to take creep and relaxation phenomena into account to meet their design goals, thus creating the need to determine the high-temperature properties of their specific commercial alloys. In ddition, since this industry provides a high volume, inexpensive product the ability to employ techniques such as single crystal and directional solidification or the use of super-alloys to solve the creep problem are eliminated due to the very high cost of these methods. Modeling of Viscoelastic Phenomena Experimental determination of the fundamental processes leading to viscoelastic phenomena is intellectually stimulating but does not directly translate into mechanical design. The ability to model components and predict their response before manufacture leads to product robustness, efficiency and afforability. Although experimental data is required, constitutive laws and numerical simulations are used in actual design work. Example, loss of bolt clamp load in any bolted oint. Novel Composites - metastable Composites Using Phase Transitions for Extreme Behavior Negative Modulii - High Damping / High Stiffness Composites Instability/ Stability in Material Properties Many internal structural schemes can be utilized to exceed conventional theoretical bounds on composite behavior. One such way is through the negative stiffness concept. Phase transforming inclusions can display negative tiffness effects when imbedded in a positive stiffness matrix. composites of this type, though metastable, can display extreme behavior in both effective composite modulii as well as composite internal friction. Experimental Equipment - Broadband Viscoelastic spectroscopy (BVS) - Resonant Ultrasound Spectroscopy (RUS) Dead-Weight Creep Frame - Servo-hydraulic 20,000 lb MTS test frame Other General Research Interests: Structure-Property Relations, Materials Processing and Forming, Biological Materials, Ceramics, Ancient Civilization Materials and Processing |
