Development of a failure strain surface in average stress triaxiality and average lode angle domains of a low temperature high strength steel

J. Choung; S. J. Park; G. T. Tayyar

doi:10.1201/b18179-88

Development of a failure strain surface in average stress triaxiality and average lode angle domains of a low temperature high strength steel

J. Choung, S. J. Park, G. T. Tayyar

Gemi İnş. ve Gemi Mak. Müh. Böl.

Inha University

Araştırma sonucu: ???type-name??? › Konferans katkısı › bilirkişi

Özet

The paper deals with formulation of failure strain according to average stress triaxiality and normalized lode angle of a low temperature high-tensile steel, EH36, used for arctic marine structures. Stress triaxiailty and lode angle are known the factors mainly governing fracture initiation of most ductile metals. A number of tests are conducted for round and flat tensile specimens with different notches from relatively smooth to very sharp levels, and specially designed specimens to induce pure shear failure and shear-tension failure. Nonlinear finite element simulation of each specimen is performed to obtain stress and strain fields at fracture initiation. Three dimensional failure strain surface is proposed in the average stress triaxiality and normalized lode angle domains. In order to verify validity of the surface, tensile tests are conducted for asymmetric notch specimens which are indirectly representing fracture-anticipating parts of real marine structures. It is concluded that the proposed fracture surface well predicts fracture initiation of the real structures.

Orijinal dil	İngilizce
Ana bilgisayar yayını başlığı	Analysis and Design of Marine Structures - Proceedings of the 5th International Conference on Marine Structures, MARSTRUCT 2015
Editörler	C. Guedes Soares, R. Ajit Shenoi
Yayınlayan	CRC Press/Balkema
Sayfalar	671-683
Sayfa sayısı	13
ISBN (Elektronik)	9781138027893
DOI'lar	https://doi.org/10.1201/b18179-88
Yayın durumu	Yayınlandı - 2015
Etkinlik	5th International Conference on Marine Structures, MARSTRUCT 2015 - Southampton, United Kingdom Süre: 25 Mar 2015 → 27 Mar 2015

Yayın serisi

Adı	Analysis and Design of Marine Structures - Proceedings of the 5th International Conference on Marine Structures, MARSTRUCT 2015

???event.eventtypes.event.conference???

???event.eventtypes.event.conference???	5th International Conference on Marine Structures, MARSTRUCT 2015
Ülke/Bölge	United Kingdom
Şehir	Southampton
Periyot	25/03/15 → 27/03/15

Bibliyografik not

Publisher Copyright:
© 2015 Taylor & Francis Group, London.

Belgeye Erişim

10.1201/b18179-88

Diğer Dosyalar ve Linkler

Link to publication in Scopus

Alıntı Yap

Choung, J., Park, S. J., & Tayyar, G. T. (2015). Development of a failure strain surface in average stress triaxiality and average lode angle domains of a low temperature high strength steel. In C. G. Soares, & R. A. Shenoi (Eds.), Analysis and Design of Marine Structures - Proceedings of the 5th International Conference on Marine Structures, MARSTRUCT 2015 (pp. 671-683). (Analysis and Design of Marine Structures - Proceedings of the 5th International Conference on Marine Structures, MARSTRUCT 2015). CRC Press/Balkema. https://doi.org/10.1201/b18179-88

Choung, J. ; Park, S. J. ; Tayyar, G. T. / Development of a failure strain surface in average stress triaxiality and average lode angle domains of a low temperature high strength steel. Analysis and Design of Marine Structures - Proceedings of the 5th International Conference on Marine Structures, MARSTRUCT 2015. editör / C. Guedes Soares ; R. Ajit Shenoi. CRC Press/Balkema, 2015. pp. 671-683 (Analysis and Design of Marine Structures - Proceedings of the 5th International Conference on Marine Structures, MARSTRUCT 2015).

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title = "Development of a failure strain surface in average stress triaxiality and average lode angle domains of a low temperature high strength steel",

abstract = "The paper deals with formulation of failure strain according to average stress triaxiality and normalized lode angle of a low temperature high-tensile steel, EH36, used for arctic marine structures. Stress triaxiailty and lode angle are known the factors mainly governing fracture initiation of most ductile metals. A number of tests are conducted for round and flat tensile specimens with different notches from relatively smooth to very sharp levels, and specially designed specimens to induce pure shear failure and shear-tension failure. Nonlinear finite element simulation of each specimen is performed to obtain stress and strain fields at fracture initiation. Three dimensional failure strain surface is proposed in the average stress triaxiality and normalized lode angle domains. In order to verify validity of the surface, tensile tests are conducted for asymmetric notch specimens which are indirectly representing fracture-anticipating parts of real marine structures. It is concluded that the proposed fracture surface well predicts fracture initiation of the real structures.",

author = "J. Choung and Park, {S. J.} and Tayyar, {G. T.}",

note = "Publisher Copyright: {\textcopyright} 2015 Taylor & Francis Group, London.; 5th International Conference on Marine Structures, MARSTRUCT 2015 ; Conference date: 25-03-2015 Through 27-03-2015",

year = "2015",

doi = "10.1201/b18179-88",

language = "English",

series = "Analysis and Design of Marine Structures - Proceedings of the 5th International Conference on Marine Structures, MARSTRUCT 2015",

publisher = "CRC Press/Balkema",

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Choung, J, Park, SJ & Tayyar, GT 2015, Development of a failure strain surface in average stress triaxiality and average lode angle domains of a low temperature high strength steel. in CG Soares & RA Shenoi (eds), Analysis and Design of Marine Structures - Proceedings of the 5th International Conference on Marine Structures, MARSTRUCT 2015. Analysis and Design of Marine Structures - Proceedings of the 5th International Conference on Marine Structures, MARSTRUCT 2015, CRC Press/Balkema, pp. 671-683, 5th International Conference on Marine Structures, MARSTRUCT 2015, Southampton, United Kingdom, 25/03/15. https://doi.org/10.1201/b18179-88

Development of a failure strain surface in average stress triaxiality and average lode angle domains of a low temperature high strength steel. / Choung, J.; Park, S. J.; Tayyar, G. T.
Analysis and Design of Marine Structures - Proceedings of the 5th International Conference on Marine Structures, MARSTRUCT 2015. ed. / C. Guedes Soares; R. Ajit Shenoi. CRC Press/Balkema, 2015. p. 671-683 (Analysis and Design of Marine Structures - Proceedings of the 5th International Conference on Marine Structures, MARSTRUCT 2015).

Araştırma sonucu: ???type-name??? › Konferans katkısı › bilirkişi

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T1 - Development of a failure strain surface in average stress triaxiality and average lode angle domains of a low temperature high strength steel

AU - Choung, J.

AU - Park, S. J.

AU - Tayyar, G. T.

PY - 2015

Y1 - 2015

N2 - The paper deals with formulation of failure strain according to average stress triaxiality and normalized lode angle of a low temperature high-tensile steel, EH36, used for arctic marine structures. Stress triaxiailty and lode angle are known the factors mainly governing fracture initiation of most ductile metals. A number of tests are conducted for round and flat tensile specimens with different notches from relatively smooth to very sharp levels, and specially designed specimens to induce pure shear failure and shear-tension failure. Nonlinear finite element simulation of each specimen is performed to obtain stress and strain fields at fracture initiation. Three dimensional failure strain surface is proposed in the average stress triaxiality and normalized lode angle domains. In order to verify validity of the surface, tensile tests are conducted for asymmetric notch specimens which are indirectly representing fracture-anticipating parts of real marine structures. It is concluded that the proposed fracture surface well predicts fracture initiation of the real structures.

AB - The paper deals with formulation of failure strain according to average stress triaxiality and normalized lode angle of a low temperature high-tensile steel, EH36, used for arctic marine structures. Stress triaxiailty and lode angle are known the factors mainly governing fracture initiation of most ductile metals. A number of tests are conducted for round and flat tensile specimens with different notches from relatively smooth to very sharp levels, and specially designed specimens to induce pure shear failure and shear-tension failure. Nonlinear finite element simulation of each specimen is performed to obtain stress and strain fields at fracture initiation. Three dimensional failure strain surface is proposed in the average stress triaxiality and normalized lode angle domains. In order to verify validity of the surface, tensile tests are conducted for asymmetric notch specimens which are indirectly representing fracture-anticipating parts of real marine structures. It is concluded that the proposed fracture surface well predicts fracture initiation of the real structures.

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BT - Analysis and Design of Marine Structures - Proceedings of the 5th International Conference on Marine Structures, MARSTRUCT 2015

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PB - CRC Press/Balkema

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Choung J, Park SJ, Tayyar GT. Development of a failure strain surface in average stress triaxiality and average lode angle domains of a low temperature high strength steel. In Soares CG, Shenoi RA, editörler, Analysis and Design of Marine Structures - Proceedings of the 5th International Conference on Marine Structures, MARSTRUCT 2015. CRC Press/Balkema. 2015. p. 671-683. (Analysis and Design of Marine Structures - Proceedings of the 5th International Conference on Marine Structures, MARSTRUCT 2015). doi: 10.1201/b18179-88

Development of a failure strain surface in average stress triaxiality and average lode angle domains of a low temperature high strength steel

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