Fracture mechanics applications of absorbed specific fracture energy: Notch and unnotched specimens

Gillemot, F.; Czoboly, E.; Havas, I.

doi:10.1016/0167-8442(85)90041-2

Cited by 48 publications

(24 citation statements)

References 4 publications

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“…For a common welded structural steel and K t = 1, the ASFE value, obtained by tensile tests, is about 1.0 MJ/m 3 while for values of K t greater than 3.0 a plateau value is visible (Gillemot et al 1985). Depending on the considered welded metal, the plateau approximately ranges between 0.15 and 0.35 MJ/m 3 .…”

Section: Summary Of the Experimental Datamentioning

confidence: 93%

“…A critical value of strain energy density function (dW/dV) c has been extensively used also by Gillemot and collaborators (Gillemot 1965(Gillemot , 1976Czoboly et al 1982;Gillemot et al 1985), who determined experimentally (dW/dV) c for various engineering materials by using plain and notched specimens. The deformation energy required for crack initiation in a unit volume of material is termed Absorbed Specific Fracture Energy (ASFE) by Gillemot, who also discussed its links with the critical value of J c and the critical factor S c .…”

Section: Summary Of the Experimental Datamentioning

confidence: 98%

“…While measurements of the energy in an infinitely small element are not possible, they can be approximated with sufficient accuracy by calculating the fracture energy over the entire fractured cross section of an unnotched tensile specimen (Gillemot et al 1985). Notched components loaded under static loads show that the average ASFE decreases with increasing the notch sharpness, with the ASFE parameter being plotted as a function of the theoretical stress concentration factor, K t , and the temperature (Gillemot et al 1985).…”

Section: Summary Of the Experimental Datamentioning

confidence: 99%

“…Notched components loaded under static loads show that the average ASFE decreases with increasing the notch sharpness, with the ASFE parameter being plotted as a function of the theoretical stress concentration factor, K t , and the temperature (Gillemot et al 1985).…”

Section: Summary Of the Experimental Datamentioning

confidence: 99%

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Fracture assessment of U-notches under mixed mode loading: two procedures based on the ‘equivalent local mode I’ concept

et al. 2007

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Two fracture criteria are proposed and applied to blunt-notched components made of brittle materials loaded under mixed mode; the former is based on the averaged strain energy density over a given control volume, the latter on the cohesive crack zone model. In both instances use of the equivalent local mode I hypothesis is made. Only two material properties are needed: the ultimate tensile strength and the fracture toughness. Numerical predictions of rupture loads from the two criteria are compared with experimental measurements from more than 160 static tests with notched beams. The samples are made of PMMA and tested at −60 • C to assure a bulk behaviour almost linear elastic up to rupture. Notch root radii range from 0.2 to 4.0 mm and load mixicity varies from pure mode I to a prevailing mode II. The good agreement between theory and experimental results adds further confidence to the proposed fracture criteria.

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Section: Summary Of the Experimental Datamentioning

confidence: 93%

Section: Summary Of the Experimental Datamentioning

confidence: 98%

Section: Summary Of the Experimental Datamentioning

confidence: 99%

Section: Summary Of the Experimental Datamentioning

confidence: 99%

See 2 more Smart Citations

Fracture assessment of U-notches under mixed mode loading: two procedures based on the ‘equivalent local mode I’ concept

et al. 2007

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“…The first, based on Griffith's (1921) strain energy release rate (Seweryn 1998;Leguillon 2001Leguillon , 2002 and the other, known as local strain energy density criteria (Sih and Macdonald 1974;Kipp and Sih 1975;Gillemot 1976;Molski and Glinka 1981;Glinka 1985;Gillemot et al 1985;Sih and Ho 1991;Czoboly et al 1998;Zambardi 2001, 2002;Yosibash et al 2004;Lazzarin and Berto 2005;Lazzarin et al 2003;Livieri and Lazzarin 2005;Berto et al 2007). …”

Section: Fracture Criterion For Notched Solidsmentioning

confidence: 99%

Two-dimensional fracture mechanics problems for solids with sharp and rounded V-notches

Savruk

Kazberuk

2009

Int J Fract

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The survey of research on the problems of fracture mechanics of solids with V-shaped notches is discussed. The methods of solution of plane problems of the elasticity theory for domains with angular points on boundary contours are considered. Special attention is paid to the results of the research which authors obtained applying the unified approach to the solution of stress concentration problems in the neighborhood of the vertices of sharp and rounded V-notches. The solutions of elastostatics problems for domains with rounded V-shaped notches were obtained by singular integral equation method. Based on the relation between stress intensity factor at the sharp notch vertex and the stress concentration factor at the vertex of rounded V-notch (notch with straight edges and vertex rounded with circular arc), the stress intensity factors for V-notches in various domains were obtained. The presented examples include notch stress intensity factors for periodically placed notches in the edge of halfplane, diamond and lens-like holes in infinite plane. Through limit transition from the system of periodically placed diamond-shaped ovals to infinite doublesided notch, the stress concentration factors for rounded deep V-notch and the notch stress intensity factors for sharp notch were obtained. The comparison between calculated data and known solutions for the hyperbolic notch documents strong influence of the notch shape in the neighborhood of the rounded vertex on the stress concentration values for small vertex radii. The numerical results are presented not only in graphical form but also the numerous approximation formulas are given. Based on the solution of the nonlinear problem of rounded V-notch with plastic strip at the vertex, the new deformation fracture criterion is proposed. This criterion contains only standard strength parameters and it is intended to determine fracture toughness of the elements with rounded notches made of quasibrittle materials.

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Examination of Absorbed Specific Fracture Energy and Notch Opening Displacement on S960QL Steel and Its Welded Joints

Sas

Lukács

2022

Vehicle and Automotive Engineering 4

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Fracture mechanics applications of absorbed specific fracture energy: Notch and unnotched specimens

Cited by 48 publications

References 4 publications

Fracture assessment of U-notches under mixed mode loading: two procedures based on the ‘equivalent local mode I’ concept

Fracture assessment of U-notches under mixed mode loading: two procedures based on the ‘equivalent local mode I’ concept

Two-dimensional fracture mechanics problems for solids with sharp and rounded V-notches

Examination of Absorbed Specific Fracture Energy and Notch Opening Displacement on S960QL Steel and Its Welded Joints

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