Professional Experience

Dr. Weisgraber is a staff engineer in the Center for Engineered Materials, Manufacturing and Optimization at Lawrence Livermore National Laboratory. His research interests in computational physics span a variety of application disciplines, including the onset of turbulence, additive manufacturing, polymer rheology, and microfluidic systems. In 2011, as part of the Flow Rate Technical Group and LLNL Nodal Analysis Team Lead, he received the Department of Energy Secretary's Achievement Award for contributions to flow rate calculations for the Macondo Well in response to the Deepwater Horizon oilrig disaster.

Research Interests

Computational fluid and solid mechanics, numerical optimization, additive manufacturing

Ph.D., Mechanical Engineering, University of California, Berkeley, 2001

M.S., Mechanical Engineering, University of California, Berkeley, 1997

B.S., Engineering Physics, University of California, San Diego, 1989

Eric B. Duoss, Todd H. Weisgraber, Keith Hearon, Cheng Zhu, Ward Small, Thomas R. Metz, John J. Vericella, Holly D. Barth, Joshua D. Kuntz, Robert S. Maxwell, Christopher M. Spadaccini, and Thomas S. Wilson, “Three-dimensional printing of elastomeric, cellular architectures with negative stiffness,” Adv. Funct. Mater., doi: 10.1002/adfm.201400451 (in press).

Xiaoyu Zheng, Howon Lee, Todd H. Weisgraber, Maxim Shusteff, Joshua DeOtte, Eric B. Duoss, Joshua D. Kuntz, Monika M. Biener, Qi Ge, Julie A. Jackson, Sergei O. Kucheyev, Nicholas X. Fang, and Christopher M. Spadaccini, “Ultralight, ultrastiff mechanical metamaterials,” Science 344 (6190), 1373–1377 (2014).

Stephen M. Guzik, Todd H. Weisgraber, Phillip Colella, and Berni J. Alder, “Interpolation methods and the accuracy of lattice-Boltzmann mesh refinement,” J. Comput. Phys. 259, 461–487 (2014).

Todd H. Weisgraber and Berni J. Alder, “Computer experiments on the onset of turbulence,” in 28th International Symposium on Rarefied Gas Dynamics (2012).

Todd H. Weisgraber, Richard H. Gee, Amitesh Maiti, David S. Clague, Sarah Chinn, and Robert S. Maxwell, “A mesoscopic network model for permanent set in crosslinked elastomers,” Polymer 50 (23), 5613–5617 (2009).