ELASTOPLASTIC FRACTURE OF A PLATE WITH TWO EDGE CRACKS

ELASTOPLASTIC FRACTURE OF A PLATE WITH TWO EDGE CRACKS Full article

Journal

Journal of Applied Mechanics and Technical Physics
ISSN: 0021-8944

Output data

Year: 2023, Volume: 64, Number: 3, Pages: 523-530 Pages count : 8 DOI: 10.1134/s0021894423030185

Tags

quasi-brittle and quasi-ductile fracture, fracture criterion, prefracture zone, average grain diameter of structured material, elastoplastic material, ultimate strain

Authors

Astapov N.S. ¹ , Kurguzov V.D. ¹

Affiliations

1	Lavrent’ev Institute of Hydrodynamics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia

The strength of a rectangular plate with two opening-mode (mode I) edge cracks was studied using the Neuber–Novozhilov approach and a modified Leonov–Panasyuk–Dugdale model with a nonzero prefracture zone. A coupled discrete-integral fracture criterion is used since the stress field in the vicinity of the crack tip has a singularity. The ultimate strain fracture criterion is satisfied at the real crack tip, and the normal stress criterion is satisfied at the model crack tip. The constitutive equations of the analytical model are analyzed. Simple formulas for the fracture load are derived for quasi-brittle and quasi-ductile fracture. Plate fracture curves are plotted for a plane stressed state

Astapov N.S. , Kurguzov V.D.
ELASTOPLASTIC FRACTURE OF A PLATE WITH TWO EDGE CRACKS
Journal of Applied Mechanics and Technical Physics. 2023. V.64. N3. P.523-530. DOI: 10.1134/s0021894423030185 WOS Scopus РИНЦ OpenAlex

Астапов Н.С. , Кургузов В.Д.
УПРУГОПЛАСТИЧЕСКОЕ РАЗРУШЕНИЕ ПЛАСТИНЫ С ДВУМЯ КРАЕВЫМИ ТРЕЩИНАМИ
Прикладная механика и техническая физика. 2023. Т.64. №3. С.189-198. DOI: 10.15372/PMTF202215189 РИНЦ OpenAlex

Submitted:	Aug 23, 2022
Accepted:	Nov 28, 2022

Web of science:	WOS:001052954700018
Scopus:	2-s2.0-85168414057
Elibrary:	62791343
OpenAlex:	W4386035779

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