Czasopismo
2007
|
Vol. 52, iss. 2
|
171-180
Tytuł artykułu
Autorzy
Wybrane pełne teksty z tego czasopisma
Warianty tytułu
odporność na pękanie materiałów przy obecności odkształceń plastycznych
Konferencja
Scientific Seminar Integrated Study on the Foundations of Plastic Deformation of Metals PLASTMET'06 (5; 28.11-01.12.2006; Łańcut, Poland)
Języki publikacji
Abstrakty
In this paper the problem of fracture toughness is reanalyzed. It is shown that fracture toughness is not a material property. It depends on a shape and size of structural elements. The measures of in- and out-of-plane constraint are defined and their influence on fracture toughness is demonstrated. The idea of “local approach” to fracture is shortly described and some results obtained within this approach concerning the fracture toughness determination are presented. The idea of fracture energy is presented and this quantity is computed both for linear and non-linear materials using the step-like crack growth model.
W pracy przeanalizowano problematykę odporności na pękanie. Pokazano, że odporność na pękanie nie jest stałą materiałową. Zależy ona także od kształtu i wymiarów elementów konstrukcyjnych. Zdefiniowano miary wiezów płaskich i w kierunku grubości oraz pokazano ich wpływ na odporność na pękanie. Idea „lokalnego podejścia” do procesu pękania jest krótko przypomniana i przytoczono niektóre rezultaty uzyskane przy stosowaniu tej idei do określania rzeczywistej odporności na pękanie. Przedstawiono też rezultaty oceny energii pękania dla materiałów plastycznych przy zastosowaniu tzw. Skowego modelu propagacji pęknięć.
Czasopismo
Rocznik
Tom
Strony
171-180
Opis fizyczny
Bibliogr. 41 poz., rys., tab.
Twórcy
autor
- Mechatronics and Machine Building, Kielce University of technology, 25-314 Kielce, Al. 1000 lecia Państwa Polskiego 7
Bibliografia
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- [2] C. Berdin, J. Besson, S. Bugat, R. Desmorat, F. Feyel, S. Forest, E. Lorenz, E. Maire, T. Pardoen, A. Pineau, B. Tanguy, LOCAL APPROACH TO FRACTURE, Edited by Jacques Besson, Ecoles des Mines de Paris 2004.
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- [17] J. R. Rice, P. C. Paris, J. G. Merkle, Some further results of J-integral analysis and estimates, in PROGRESS IN FLAW GROWTH AND FRACTURE TOUGHNESS TESTING, ASTM STP 536, American Society for Testing and Materials, 231-245 (1973).
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- [20] G. P. Nikishkov, An algorithm and a computer program for the three-term asymptotic expansion of elastic-plastic crack tip stress and displacement fields. ENGINEERING FRACTURE MECHANICS 50, 65-83 (1995).
- [21] Y. J. Chao, S. Yang, M. A. Sutton, On the fracture of solids characterized by one or two parameters: theory and practice. J. MECH. PHYS. SOLIDS 42, 629-47 (1994).
- [22] G. P. Nikishkov, A. Brfickner-Foit, D. Munz, Calculation of the second fracture parameter for finite cracked bodies using three-term elastic-plastic asymptotic expansion; ENGINEERING FRACTURE MECHANICS 52, 685-701 (1995).
- [23] W. Brocks, W. Schmitt, The second parameter in J-R curves: constraint or triaxiality?, CONSTRAINT EFFECTS IN FRACTURE THEORY AND APPLICATIONS: Second Volume, ASTM STP 1244, Mark Kirk and Ad Bakker, Eds., American Society for Testing and Materials, Philadelphia, 209-231 (1995).
- [24] B. S. Henry, A. R. Luxmoore, The Stress Triaxiality Constraint and the Q-Value as a Ductile Fracture parameter, ENGINEERING FRACTURE MECHANICS 57, 4, 375-390 (1997).
- [25] J. C. Newman, C. A. Bigelow, Shivakumar, Three-dimensional Elastic-plastic finite-element analysis of constraint variations in cracked bodies, ENGINEERING FRACTURE MECHANICS 46, 1, 1-13 (1993).
- [26] W. Guo, Elastoplastic three dimensional crack border field - I. Singular structure of the field. ENGINEERING FRACTURE MECHANICS 46(1), 93-104 (1993).
- [27] W. Guo, Elastoplastic three dimensional crack border field - II. Asymptotic solution for the field. ENGINEERING FRACTURE MECHANICS 46(1), 105-13 (1993).
- [28] W. Guo, Elasto-plastic three-dimensional crack border field - III. Fracture parameters. ENGINEERING FRACTURE MECHANICS 51(1), 51-71 (1995).
- [29] N. Beremin, A local criterion for cleavage fracture of a nuclear pressure vessel steel, Met. Transaction A 14A, 2277-2287.
- [30] A. H. Sherry, D. G. Hooton, D. W. Beardsmore, D. P.G. Lidbury, Material constraint parameters for the assessment of shallow defects in structural components - Part II: constraint -based assessment of shallow cracks, ENGINEERING FRACTURE MECHANICS 72, 2396-2415 (2005).
- [31] X. Gao, R. H. Dodds Jr., An engineering approach to assess constraint effects on cleavage fracture toughness, ENGINEERING FRACTURE MECHANICS 68, 263-283 (2001).
- [32] FITNET Report, (European Fitness-for-service Network). Edited by M. Kocak, S. Webster, J.J. Janosch,R.A. Ainsworth,R. Koers, Contract No. GIRT-CT-2001-05071, (2006).
- [33] SINTAP: structural assessment procedure for European industry, Final Procedure, 1999, Brite-Euram Project No. BE95-1426, British Steel.
- [34] A. H. Sherry, M. A. Wilkes, D. W. Beardsmore, D. P. G. Lidbury, Material constraint parameters for the assessment of shallow defects in structural components - Part I: Parameter solutions, ENGINEERING FRACTURE MECHANICS 72, 2373-2395 (2005).
- [35] R. O. Ritchie, J. F. Knott, J. R. Rice, On the Relationship Between Tensile Stress and Fracture Toughness in Mild Steels, JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS 21, 395-410 (1973).
- [36] N. P. O’ Dowd, Application of two parameter approaches in elastic-plastic fracture mechanics, ENGINEERING FRACTURE MECHANICS 52, 3, 445-465 (1995).
- [37] A. Neimitz, M. Graba, J. Gałkiewicz, A new analytical formulation of the Ritchie-Knot-Rice local fracture criterion, ENGINEERING FRACTURE MECHANICS 74, 8, 1308-1322 (2007)
- [38] J. R. Rice, An Examination of the Fracture Mechanics chanics; Energy Balance from the Point of View of Continuum Mechanics, in Proceedings of the 1st International Conference on Fracture, Sendai, 1965 (eds. T. Yokobori, T. Kawasaki, and J. L. Swedlow), I, Japanese Society for Strength and Fracture of Materials, pp. 309-340, Tokyo 1966
- [39] A. Neimit z, On the physical consequences of the jump-like crack growth model, in print.
- [40] G. R. Irwin, Analysis of Stresses and Strains Near the . End of Crack Traversing a Plate, Journal of Applied Mechanics; 1957; 24: 361-64. Also reprinted in FRACTURE MECHANICS RETROSPECTIVE, EARLY CLASSIC - PAPERS, ed. by J.M.Barsom, ASTM RPS 1, 1987.
- [41] Y. J. Chao, W. Ji, Cleavage fracture quantified bi J and A2 in CONSTRAINT EFFECTS IN FRACTURE THEORY AND APPLICATIONS; SECOND VOLUME, 1966. Eds M.Kirk and Ad Bakker, ASTM STP 1244, American Society for Testing and Materials 3, 20 (1995).
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.baztech-article-BSW3-0033-0003