Petros Sofronis

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Research Output

2020

On the stress field ahead of a stationary crack tip during the transition from primary to secondary creep

Sanders, J. W., Dadfarnia, M., Sehitoglu, H., Stubbins, J. & Sofronis, P., Jun 1 2020, In : International Journal of Solids and Structures. 193-194, p. 455-473 19 p.

Research output: Contribution to journalArticle

2019

A model for high temperature hydrogen attack in carbon steels under constrained void growth

Dadfarnia, M., Martin, M. L., Moore, D. E., Orwig, S. E. & Sofronis, P., Sep 1 2019, In : International Journal of Fracture. 219, 1

Research output: Contribution to journalArticle

Assessment of resistance to fatigue crack growth of natural gas line pipe steels carrying gas mixed with hydrogen

Dadfarnia, M., Sofronis, P., Brouwer, J. & Sosa, S., Apr 23 2019, In : International Journal of Hydrogen Energy. 44, 21, p. 10808-10822 15 p.

Research output: Contribution to journalArticle

Assessment of the impact of hydrogen on the stress developed ahead of a fatigue crack

Wang, S., Nagao, A., Sofronis, P. & Robertson, I. M., Aug 1 2019, In : Acta Materialia. 174, p. 181-188 8 p.

Research output: Contribution to journalArticle

Enumeration of the hydrogen-enhanced localized plasticity mechanism for hydrogen embrittlement in structural materials

Martin, M. L., Dadfarnia, M., Nagao, A., Wang, S. & Sofronis, P., Feb 15 2019, In : Acta Materialia. 165, p. 734-750 17 p.

Research output: Contribution to journalReview article

On the failure of surface damage to assess the hydrogen-enhanced deformation ahead of crack tip in a cyclically loaded austenitic stainless steel

Wang, S., Nygren, K. E., Nagao, A., Sofronis, P. & Robertson, I. M., Jun 2019, In : Scripta Materialia. 166, p. 102-106 5 p.

Research output: Contribution to journalArticle

2018

Focus on carbon-neutral energy science and technology

Ishihara, T. & Sofronis, P., Dec 31 2018, In : Science and Technology of Advanced Materials. 19, 1, p. 484-485 2 p.

Research output: Contribution to journalEditorial

Hydrogen-enhanced-plasticity mediated decohesion for hydrogen-induced intergranular and “quasi-cleavage” fracture of lath martensitic steels

Nagao, A., Dadfarnia, M., Somerday, B. P., Sofronis, P. & Ritchie, R. O., Mar 2018, In : Journal of the Mechanics and Physics of Solids. 112, p. 403-430 28 p.

Research output: Contribution to journalArticle

Hydrogen-modified dislocation structures in a cyclically deformed ferritic-pearlitic low carbon steel

Wang, S., Nagao, A., Sofronis, P. & Robertson, I. M., Feb 1 2018, In : Acta Materialia. 144, p. 164-176 13 p.

Research output: Contribution to journalArticle

On the theoretical modeling of fatigue crack growth

Hosseini, Z. S., Dadfarnia, M., Somerday, B. P., Sofronis, P. & Ritchie, R. O., Dec 2018, In : Journal of the Mechanics and Physics of Solids. 121, p. 341-362 22 p.

Research output: Contribution to journalArticle

2017

A microstructure-based mechanism of cracking in high temperature hydrogen attack

Martin, M. L., Dadfarnia, M., Orwig, S., Moore, D. & Sofronis, P., Nov 2017, In : Acta Materialia. 140, p. 300-304 5 p.

Research output: Contribution to journalArticle

Effect of hydrogen on fatigue-crack growth of a ferritic-pearlitic low carbon steel

Nagao, A., Dadfarnia, M., Wang, S., Sofronis, P., Nygren, K. E. & Robertson, I. M., Jan 1 2017, Materials and Fabrication. American Society of Mechanical Engineers (ASME), (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; vol. 6B-2017).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

On the fracture of high temperature alloys by creep cavitation under uniaxial or biaxial stress states

Sanders, J. W., Dadfarnia, M., Stubbins, J. F. & Sofronis, P., Jan 1 2017, In : Journal of the Mechanics and Physics of Solids. 98, p. 49-62 14 p.

Research output: Contribution to journalArticle

2016

Effect of hydrogen environment on the separation of Fe grain boundaries

Wang, S., Martin, M. L., Robertson, I. M. & Sofronis, P., Apr 1 2016, In : Acta Materialia. 107, p. 279-288 10 p.

Research output: Contribution to journalArticle

2015

Chemomechanical effects on the separation of interfaces occurring during fracture with emphasis on the hydrogen-iron and hydrogen-nickel system

Kirchheim, R., Somerday, B. & Sofronis, P., Aug 11 2015, In : Acta Materialia. 99, p. 87-98 12 p.

Research output: Contribution to journalArticle

Hydrogen Embrittlement Understood

Robertson, I. M., Sofronis, P., Nagao, A., Martin, M. L., Wang, S., Gross, D. W. & Nygren, K. E., Jun 1 2015, In : Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. 46, 6, p. 2323-2341 19 p.

Research output: Contribution to journalArticle

Hydrogen Embrittlement Understood

Robertson, I. M., Sofronis, P., Nagao, A., Martin, M. L., Wang, S., Gross, D. W. & Nygren, K. E., Jun 26 2015, In : Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science. 46, 3, p. 1085-1103 19 p., 325.

Research output: Contribution to journalArticle

Recent advances on hydrogen embrittlement of structural materials

Dadfarnia, M., Nagao, A., Wang, S., Martin, M. L., Somerday, B. P. & Sofronis, P., Nov 1 2015, In : International Journal of Fracture. 196, 1-2, p. 223-243 21 p.

Research output: Contribution to journalArticle

2014

Hydrogen-induced intergranular failure of iron

Wang, S., Martin, M. L., Sofronis, P., Ohnuki, S., Hashimoto, N. & Robertson, I. M., May 2014, In : Acta Materialia. 69, p. 275-282 8 p.

Research output: Contribution to journalArticle

Modeling hydrogen transport by dislocations

Dadfarnia, M., Martin, M. L., Nagao, A., Sofronis, P. & Robertson, I. M., Dec 15 2014, In : Journal of the Mechanics and Physics of Solids. 78, p. 511-525 15 p.

Research output: Contribution to journalArticle

On modeling hydrogen-induced crack propagation under sustained load

Dadfarnia, M., Somerday, B. P., Schembri, P. E., Sofronis, P., Foulk, J. W., Nibur, K. A. & Balch, D. K., Aug 2014, In : JOM. 66, 8, p. 1390-1398 9 p.

Research output: Contribution to journalArticle

The effect of nanosized (Ti,Mo)C precipitates on hydrogen embrittlement of tempered lath martensitic steel

Nagao, A., Martin, M. L., Dadfarnia, M., Sofronis, P. & Robertson, I. M., Aug 1 2014, In : Acta Materialia. 74, p. 244-254 11 p.

Research output: Contribution to journalArticle

2013

A microstructural based understanding of hydrogen-enhanced fatigue of stainless steels

Martin, M. L., Sofronis, P., Robertson, I. M., Awane, T. & Murakami, Y., Jan 1 2013, In : International Journal of Fatigue. 57, p. 28-36 9 p.

Research output: Contribution to journalArticle

Elucidating the variables affecting accelerated fatigue crack growth of steels in hydrogen gas with low oxygen concentrations

Somerday, B. P., Sofronis, P., Nibur, K. A., San Marchi, C. & Kirchheim, R., Sep 1 2013, In : Acta Materialia. 61, 16, p. 6153-6170 18 p.

Research output: Contribution to journalArticle

The relationship between crack-tip strain and subcritical cracking thresholds for steels in high-pressure hydrogen gas

Nibur, K. A., Somerday, B. P., Marchi, C. S., Foulk, J. W., Dadfarnia, M. & Sofronis, P., Jan 1 2013, In : Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. 44, 1, p. 248-269 22 p.

Research output: Contribution to journalArticle

2012

Degradation models for hydrogen embrittlement

Dadfarnia, M., Sofronis, P., Somerday, B. P., Balch, D. K. & Schembri, P., Jan 1 2012, Gaseous Hydrogen Embrittlement of Materials in Energy Technologies: Mechanisms, Modelling and Future Developments. Elsevier Inc., p. 326-377 52 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Degradation models for hydrogen embrittlement

Dadfarnia, M., Sofronis, P., Somerday, B. P., Balch, D. K. & Schembri, P., Jan 1 2012, Gaseous Hydrogen Embrittlement of Materials in Energy Technologies: Mechanisms, Modelling and Future Developments. Elsevier Inc., p. 326-377 52 p.

Research output: Chapter in Book/Report/Conference proceedingChapter

Full field measurements of anisotropic stress intensity factor ranges in fatigue

Pataky, G. J., Sangid, M. D., Sehitoglu, H., Hamilton, R. F., Maier, H. J. & Sofronis, P., Nov 1 2012, In : Engineering Fracture Mechanics. 94, p. 13-28 16 p.

Research output: Contribution to journalArticle

Hydrogen-induced intergranular failure in nickel revisited

Martin, M. L., Somerday, B. P., Ritchie, R. O., Sofronis, P. & Robertson, I. M., Apr 1 2012, In : Acta Materialia. 60, 6-7, p. 2739-2745 7 p.

Research output: Contribution to journalArticle

The role of hydrogen in hydrogen embrittlement fracture of lath martensitic steel

Nagao, A., Smith, C. D., Dadfarnia, M., Sofronis, P. & Robertson, I. M., Aug 1 2012, In : Acta Materialia. 60, 13-14, p. 5182-5189 8 p.

Research output: Contribution to journalArticle

2011

Effect of ion irradiation-produced defects on the mobility of dislocations in 304 stainless steel

Briceño, M., Fenske, J., Dadfarnia, M., Sofronis, P. & Robertson, I. M., Feb 1 2011, In : Journal of Nuclear Materials. 409, 1, p. 18-26 9 p.

Research output: Contribution to journalArticle

Hydrogen interaction with multiple traps: Can it be used to mitigate embrittlement?

Dadfarnia, M., Sofronis, P. & Neeraj, T., Aug 1 2011, In : International Journal of Hydrogen Energy. 36, 16, p. 10141-10148 8 p.

Research output: Contribution to journalArticle

Interpreting hydrogen-induced fracture surfaces in terms of deformation processes: A new approach

Martin, M. L., Robertson, I. M. & Sofronis, P., May 1 2011, In : Acta Materialia. 59, 9, p. 3680-3687 8 p.

Research output: Contribution to journalArticle

On the environmental similitude for fracture in the SENT specimen and a cracked hydrogen gas pipeline

Dadfarnia, M., Sofronis, P., Somerday, B. P., Balch, D. K., Schembri, P. & Melcher, R., Aug 1 2011, In : Engineering Fracture Mechanics. 78, 12, p. 2429-2438 10 p.

Research output: Contribution to journalArticle

On the formation and nature of quasi-cleavage fracture surfaces in hydrogen embrittled steels

Martin, M. L., Fenske, J. A., Liu, G. S., Sofronis, P. & Robertson, I. M., Feb 1 2011, In : Acta Materialia. 59, 4, p. 1601-1606 6 p.

Research output: Contribution to journalArticle

2010

A statistical, physical-based, micro-mechanical model of hydrogen-induced intergranular fracture in steel

Novak, P., Yuan, R., Somerday, B. P., Sofronis, P. & Ritchie, R. O., Feb 1 2010, In : Journal of the Mechanics and Physics of Solids. 58, 2, p. 206-226 21 p.

Research output: Contribution to journalArticle

Microstructure and mechanical property performance of commercial grade API pipeline steels in high pressure gaseous hydrogen

Stalheim, D., Boggess, T., Marchi, C. S., Jansto, S., Somerday, B., Muralidharan, G. & Sofronis, P., 2010, 2010 8th International Pipeline Conference, IPC2010. p. 529-537 9 p. (Proceedings of the Biennial International Pipeline Conference, IPC; vol. 2).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Recent advances in the study of structural materials compatibility with hydrogen

Dadfarnia, M., Novak, P., Ahn, D. C., Liu, J. B., Sofronis, P., Johnson, D. D. & Robertson, I. M., Mar 12 2010, In : Advanced Materials. 22, 10, p. 1128-1135 8 p.

Research output: Contribution to journalArticle

2009

A coexistent view of hydrogen effects on mechanical behavior of crystals: HELP and HEDE

Gerberich, W. W., Stauffer, D. D. & Sofronis, P., Dec 1 2009, Proceedings of the 2008 International Hydrogen Conference - Effects of Hydrogen on Materials. p. 38-45 8 p. (Proceedings of the 2008 International Hydrogen Conference - Effects of Hydrogen on Materials).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

A combined applied mechanics/materials science approach toward quantifying the role of hydrogen on material degradation

Sofronis, P., Dadfarnia, M., Novak, P., Yuan, R., Somerday, B., Robertson, I. M., Ritchie, R. O., Kanezaki, T. & Murakami, Y., Dec 1 2009, 12th International Conference on Fracture 2009, ICF-12. p. 3881-3890 10 p. (12th International Conference on Fracture 2009, ICF-12; vol. 5).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Chapter 91 Hydrogen Effects on Plasticity

Robertson, I. M., Birnbaum, H. K. & Sofronis, P., Aug 27 2009, In : Dislocations in Solids. 15, p. 249-293 45 p.

Research output: Contribution to journalArticle

Effect of remote hydrogen boundary conditions on the near crack-tip hydrogen concentration profiles in a cracked pipeline: Fracture toughness assessment

Dadfarnia, M., Sofronis, P., Somerday, B. P. & Robertson, I. M., 2009, Materials Innovations in an Emerging Hydrogen Economy - A Collection of Papers Presented at the Materials Innovations in an Emerging Hydrogen Economy Conference. Vol. 202. p. 187-199 13 p. (Ceramic Transactions; vol. 202).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Effects of hydrogen on steady, ductile crack growth: Computational studies

Sobotka, J. C., Dodds, R. H. & Sofronis, P., Nov 1 2009, In : International Journal of Solids and Structures. 46, 22-23, p. 4095-4106 12 p.

Research output: Contribution to journalArticle

Hydrogen/plasticity interactions at an axial crack in pipeline steel

Dadfarnia, M., Sofronis, P., Somerday, B. P. & Robertson, I. M., Jan 1 2009, Fatigue and Fracture Mechanics: 36th Volume. American Society for Testing and Materials, p. 474-495 22 p. (ASTM Special Technical Publication; vol. 1508 STP).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Hydrogen-Assisted crack propagation in austenitic stainless steel fusion welds

Somerday, B. P., Dadfarnia, M., Balch, D. K., Nibur, K. A., Cadden, C. H. & Sofronis, P., Aug 10 2009, In : Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. 40, 10, p. 2350-2362 13 p.

Research output: Contribution to journalArticle

Interaction of hydrogen transport and material elastoplasticity in pipeline steels

Dadfarnia, M., Somerday, B. P., Sofronis, P., Robertson, I. M. & Stalheim, D., Aug 1 2009, In : Journal of Pressure Vessel Technology, Transactions of the ASME. 131, 4, 041404.

Research output: Contribution to journalArticle

Modeling issues on hydrogen-induced intergranular cracking under sustained load

Dadfarnia, M., Sofronis, P., Somerday, B. P., Liu, J. B., Johnson, D. D. & Robertson, I. M., Dec 1 2009, Proceedings of the 2008 International Hydrogen Conference - Effects of Hydrogen on Materials. p. 613-621 9 p. (Proceedings of the 2008 International Hydrogen Conference - Effects of Hydrogen on Materials).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Near-tip behavior of ductile, steady-state crack growth in a hydrogen charged material

Dodds, R. H., Sobotka, J. C. & Sofronis, P., Dec 1 2009, 12th International Conference on Fracture 2009, ICF-12. p. 1148-1157 10 p. (12th International Conference on Fracture 2009, ICF-12; vol. 2).

Research output: Chapter in Book/Report/Conference proceedingConference contribution