Robert O. Ritchie

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Robert Ritchie
ForMemRS FREng
Robert Ritchie Royal Society.jpg
Robert Ritchie at the Royal Society admissions day in London, July 2017
Born Robert Oliver Ritchie
Alma mater University of Cambridge (BA, MA, PhD, ScD)
Scientific career
Institutions University of California, Berkeley
Lawrence Berkeley National Laboratory
Thesis Cyclic crack growth in steels (1973)
Doctoral advisor John F. Knott[2]

Robert Oliver Ritchie ForMemRS FREng[3] is the H.T. and Jessie Chua Distinguished Professor of Engineering at the University of California, Berkeley and Senior Faculty Scientist at the Lawrence Berkeley National Laboratory.[4][1][5][6]


Ritchie received Master of Arts (MA), Doctor of Philosophy (PhD)[7] and Doctor of Science (ScD) degrees in Physics and Materials Science from the University of Cambridge.[3] During his PhD, he worked with John F. Knott.[2]

Career and research[edit]

Ritchie is known for his research into the mechanics and micromechanisms of fracture and fatigue of a broad range of biological and structural materials, where he has provided a microstructural basis for their damage tolerance and fatigue limits.[3][8] As of 2017 his interests are focused on high entropy alloys and bulk metallic glasses,[9] the structural integrity of human bone,[10] and the development of novel structural materials from biologically inspired engineering.[3][11]

Awards and honours[edit]

Ritchie has won numerous awards including the David Turnbull Lectureship from the Materials Research Society in 2013, the Acta Materialia Gold Medal in 2014, and the Morris Cohen Award from The Minerals, Metals & Materials Society (TMS) in 2017.[3] Ritchie was also the inaugural winner of the Sir Alan Cottrell Gold Medal from the International Congress on Fracture in 2009. He is a Fellow of the Royal Academy of Engineering, the National Academy of Engineering of the United States, the Russian Academy of Sciences and the Royal Swedish Academy of Engineering Sciences and was elected a Foreign Member of the Royal Society (ForMemRS) in 2017.[3]


  1. ^ a b Robert O. Ritchie publications indexed by Google Scholar Edit this at Wikidata
  2. ^ a b Ritchie, R.O.; Knott, J.F.; Rice, J.R. (1973). "On the relationship between critical tensile stress and fracture toughness in mild steel". Journal of the Mechanics and Physics of Solids. 21 (6): 395–410. doi:10.1016/0022-5096(73)90008-2. ISSN 0022-5096. closed access publication – behind paywall
  3. ^ a b c d e f Anon (2017). "Professor Robert Ritchie FREng ForMemRS". London: Royal Society. Archived from the original on 2017-05-05. One or more of the preceding sentences incorporates text from the website where:

    “All text published under the heading 'Biography' on Fellow profile pages is available under Creative Commons Attribution 4.0 International License.” --"Royal Society Terms, conditions and policies". Archived from the original on 2016-11-11. Retrieved 2016-03-09.

  4. ^ 7201592337 Robert O. Ritchie publications indexed by the Scopus bibliographic database. (subscription required)
  5. ^ Ritchie, Robert (2016). "Ritchie Group". Archived from the original on 2016-03-04.
  6. ^ Demczyk, B.G; Wang, Y.M; Cumings, J; Hetman, M; Han, W; Zettl, A; Ritchie, R.O (2002). "Direct mechanical measurement of the tensile strength and elastic modulus of multiwalled carbon nanotubes". Materials Science and Engineering: A. 334 (1–2): 173–178. doi:10.1016/s0921-5093(01)01807-x. closed access publication – behind paywall
  7. ^ Ritchie, Robert Oliver (1973). Cyclic crack growth in steels. (PhD thesis). University of Cambridge. OCLC 500549826. EThOS
  8. ^ Ritchie, Robert O. (2011). "The conflicts between strength and toughness". Nature Materials. 10 (11): 817–822. doi:10.1038/nmat3115. ISSN 1476-1122. PMID 22020005. closed access publication – behind paywall
  9. ^ Liu, Dong; Gludovatz, Bernd; Barnard, Harold S.; Kuball, Martin; Ritchie, Robert O. (2017). "Damage tolerance of nuclear graphite at elevated temperatures". Nature Communications. 8: 15942. doi:10.1038/ncomms15942. ISSN 2041-1723. PMC 5497056. PMID 28665405. open access publication – free to read
  10. ^ Fowler, Tristan W.; Acevedo, Claire; Mazur, Courtney M.; Hall-Glenn, Faith; Fields, Aaron J.; Bale, Hrishikesh A.; Ritchie, Robert O.; Lotz, Jeffrey C.; Vail, Thomas P. (2017). "Glucocorticoid suppression of osteocyte perilacunar remodeling is associated with subchondral bone degeneration in osteonecrosis". Scientific Reports. 7: 44618. doi:10.1038/srep44618. ISSN 2045-2322. PMC 5361115. PMID 28327602. open access publication – free to read
  11. ^ Munch, E.; Launey, M. E.; Alsem, D. H.; Saiz, E.; Tomsia, A. P.; Ritchie, R. O. (2008). "Tough, Bio-Inspired Hybrid Materials". Science. 322 (5907): 1516–1520. doi:10.1126/science.1164865. ISSN 0036-8075. PMID 19056979. closed access publication – behind paywall