Karen E. Daniels is an American physicist who is a professor of physics at North Carolina State University. Her research considers the deformation and failure of materials. She is a Fellow of the American Physical Society, and serves on their Committee on the Status of Women in Physics. She is also a Fellow of the American Association for the Advancement of Science.
Karen E. Daniels | |
|---|---|
 Daniels in May 2022 | |
| Nationality | American |
| Alma mater | |
| Known for | Advances in experimental probes of the structure and mechanics of granular materials. |
| Awards | |
| Scientific career | |
| Fields | Experimental Physics, Soft Matter, Granular Materials |
| Institutions | |
| Thesis | Pattern Formation and Dynamics in Inclined Layer Convection |
| Doctoral advisor | Eberhard Bodenschatz |
| Other academic advisors | Mary Hudson, Robert Behringer |
| Website | danielslab |
Early life and education
editDaniels completed a bachelor's degree in physics at Dartmouth College in 1994.[1][2] She originally planned to study engineering.[3] After graduating, Daniels spent three years as a physics teacher at Saint Ann's School. Daniels joined Cornell University as a graduate student, earning a PhD in 2002.[1] She was a postdoctoral research associate at Duke University, working on jamming transitions.[1][4] At Duke University, Daniels developed a technique that can make a container of granules arrange into a solid-state crystal (freeze) or into a fluid (melt) by changing the rate at which they are shaken.[5]
Research and career
editDaniels joined North Carolina State University as an assistant professor in 2005.[1] She is interested in how materials compress, stretch and bend when a force is applied.[6] She specializes in granular materials and their force chains, and how networks within granular materials control their bulk properties. She developed a way to monitor whether granular materials reach a thermodynamic equilibrium, using plastic granules.[7]
In 2011, Daniels spent a year as an Alexander von Humboldt Foundation fellow at the Max Planck Institute for Dynamics and Self-Organization in Göttingen,[1][8] coordinating a workshop on complex system's: "Particulate Matter: Does Dimensionality Matter."[9] She worked with Haverford College to study the naturally arising sound waves of granular materials.[10][11] When the materials experience shear stress, the vibrating grains start to stick to the interface. When the stress becomes too much, several grains slip at once, rearranging into new patterns.[12] The stick-slip transition is accompanied by low-frequency vibrational modes.[12] She demonstrated that sound passes through the areas of a material where particles are tightest together.[12] Her lab team have investigated how space missions could explore asteroids.[13] She was supported by NASA to conduct experiments in zero gravity, and took a group of undergraduates to Zero Gravity Corporation.[13] She has also looked at liquid metals, and demonstrated that applying a low voltage to eutectic gallium-indium can cause it to form snowflake-like crystals.[14]
Daniels is on the editorial board of Physical Review Letters.[1][15] She serves on the American Physical Society Topical Group on Soft Matter committee.[16] Daniels has been involved with activities to increase the representation of women in physics since the start of her career.[17] She is part of the North Carolina State University NSF ADVANCE award "Developing Diverse Departments".[1][18]
Awards and honors
edit- 2007 National Science Foundation CAREER Award[19]
- 2011 Alexander von Humboldt Foundation Fellowship[20]
- 2013 North Carolina State University LeRoy and Elva Martin Award for Teaching Excellence[1]
- 2015 North Carolina State University Equity for Women Award[21]
- 2017 Physical Review Letters Outstanding Referee[22]
- 2018 Fellow of the American Physical Society[23]
- 2021 Fellow of the American Association for the Advancement of Science[24]
References
edit- ^ a b c d e f g h "Karen Daniels – Daniels Lab". Retrieved 2019-03-01.
- ^ "Alumni highlights: Karen Daniels '94 | Department of Physics and Astronomy". physics.dartmouth.edu. 22 May 2018. Retrieved 2019-03-02.
- ^ Anonymous (2018-05-11). "Q&A: Looking for Failure". Physics. 11: 47. Bibcode:2018PhyOJ..11...47.. doi:10.1103/Physics.11.47.
- ^ "Physics - Karen Daniels". physics.aps.org. Retrieved 2019-03-01.
- ^ "Shake and Stir to Make Granular Materials Change Phases". today.duke.edu. Retrieved 2019-03-02.
- ^ Daniels, Karen (2014-11-03). "Viewpoint: Pushing on a Nonlinear Material". Physics. 7. doi:10.1103/Physics.7.113.
- ^ "Force is the key to granular state-shifting". EurekAlert!. Retrieved 2019-03-01.
- ^ "Convection". www.ds.mpg.de. Retrieved 2019-03-02.
- ^ "NSF Award Search: Award#1019151 - Workshop Support for "Particulate Matter: Does Dimensionality Matter?"; Max Planck Institute for the Physics of Complex Systems; Dresden, Germany". www.nsf.gov. Retrieved 2019-03-02.
- ^ "Researchers listen for failure in granular materials". ScienceDaily. Retrieved 2019-03-01.
- ^ Brzinski, Theodore A.; Daniels, Karen E. (2018-05-25). "Sounds of Failure: Passive Acoustic Measurements of Excited Vibrational Modes". Physical Review Letters. 120 (21): 218003. arXiv:1610.09705. Bibcode:2018PhRvL.120u8003B. doi:10.1103/physrevlett.120.218003. ISSN 0031-9007. PMID 29883186. S2CID 47001956.
- ^ a b c "Granular materials emit characteristic sounds before slipping". Physics World. 2018-06-12. Retrieved 2019-03-01.
- ^ a b "A Zero-Gravity Laboratory". 2019-02-13. Retrieved 2019-03-01.
- ^ Scienmag (2017-10-30). "Voltage-driven liquid metal fractals". Scienmag: Latest Science and Health News. Retrieved 2019-03-02.
- ^ "PRL Editorial Team". Physical Review Letters. 2022-09-20. Retrieved 2023-03-16.
- ^ "Committees". www.aps.org. Retrieved 2019-03-01.
- ^ Zastavker, Yevgeniya V.; Williams, Elvira; Whitten, Barbara; Valentine, Jami; Rudati, Juana I.; Ong, Maria; Michelman-Ribeiro, Ariel; Martínez-Miranda, Luz J.; Kay, Laura (2006-10-17). Women in physics in the U.S.: A progress report. WOMEN IN PHYSICS: 2nd IUPAP International Conference on Women in Physics. Vol. 795. pp. 175–178. doi:10.1063/1.2128320.
- ^ "Advance at NC State – 2012". Retrieved 2019-03-02.
- ^ "NSF Award Search: Award#0644743 - CAREER: State Variables in Granular Materials". www.nsf.gov. Retrieved 2019-03-02.
- ^ says, Charles Fulp. "The Dirt Whisperer". NC State News. Retrieved 2019-03-01.
- ^ "Equity for Women Awards – Past Winners : Council on the Status of Women". Retrieved 2019-03-01.
- ^ "Physical Review Journals - Outstanding *Referees". journals.aps.org. Retrieved 2019-03-01.
- ^ "APS Fellowship". www.aps.org. Retrieved 2019-03-01.
- ^ "2021 AAAS Fellows". Retrieved 2022-01-26.
External links
edit- Karen Daniels publications indexed by Google Scholar