TY  - JOUR
AU  - Rakin, Marko
AU  - Cvijović, Z
AU  - Sedmak, Aleksandar
AU  - Sedmak, S
PY  - 2002
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/309
AB  - For the description of the mechanical behavior of a cracked material, we use a macromechanical model of fracture based on the well-known criterion of plastic yield for porous materials. This model is realized as a computational scheme with the help of the finite-element method. The critical values of the micromechanical parameters of damage are experimentally measured and numerically evaluated for smooth specimens with an aim to predict the onset of plastic yield in a compact cracked specimen. For a low-alloy pressure-vessel steel considered as an example, we show that the proposed micromechanical model can be used for the prediction of the onset of fracture processes in both smooth and compact specimens.
PB  - Springer, New York
T2  - Materials Science
T1  - Analysis of the transferability of micromechanical parameters of damage of steel under the conditions of ductile-fracture initiation
EP  - 113
IS  - 1
SP  - 104
VL  - 38
DO  - 10.1023/A:1020185001499
ER  - 

@article{
author = "Rakin, Marko and Cvijović, Z and Sedmak, Aleksandar and Sedmak, S",
year = "2002",
abstract = "For the description of the mechanical behavior of a cracked material, we use a macromechanical model of fracture based on the well-known criterion of plastic yield for porous materials. This model is realized as a computational scheme with the help of the finite-element method. The critical values of the micromechanical parameters of damage are experimentally measured and numerically evaluated for smooth specimens with an aim to predict the onset of plastic yield in a compact cracked specimen. For a low-alloy pressure-vessel steel considered as an example, we show that the proposed micromechanical model can be used for the prediction of the onset of fracture processes in both smooth and compact specimens.",
publisher = "Springer, New York",
journal = "Materials Science",
title = "Analysis of the transferability of micromechanical parameters of damage of steel under the conditions of ductile-fracture initiation",
pages = "113-104",
number = "1",
volume = "38",
doi = "10.1023/A:1020185001499"
}

Rakin, M., Cvijović, Z., Sedmak, A.,& Sedmak, S.. (2002). Analysis of the transferability of micromechanical parameters of damage of steel under the conditions of ductile-fracture initiation. in Materials Science
Springer, New York., 38(1), 104-113.
https://doi.org/10.1023/A:1020185001499

Rakin M, Cvijović Z, Sedmak A, Sedmak S. Analysis of the transferability of micromechanical parameters of damage of steel under the conditions of ductile-fracture initiation. in Materials Science. 2002;38(1):104-113.
doi:10.1023/A:1020185001499 .

Rakin, Marko, Cvijović, Z, Sedmak, Aleksandar, Sedmak, S, "Analysis of the transferability of micromechanical parameters of damage of steel under the conditions of ductile-fracture initiation" in Materials Science, 38, no. 1 (2002):104-113,
https://doi.org/10.1023/A:1020185001499 . .

TY  - JOUR
AU  - Sedmak, S
AU  - Petrovski, Blagoj
AU  - Sedmak, Aleksandar
PY  - 1996
UR  - https://machinery.mas.bg.ac.rs/handle/123456789/140
AB  - Fracture mechanics parameters (stress intensity factor K-I and its critical value K-Ic, crack opening displacement, and the contour J integral) are originally defined for static and quasistatic loading conditions. On the basis of theoretical background, standard test methods for the experimental determination of their specific values were developed. Structural integrity analysis requires the extension of application of these parameters to other types of loading. We propose new parameters for stress corrosion (stress corrosion cracking threshold K-Isco), for cyclic loading (stress intensity factor range Delta K and fatigue-threshold Delta K-th), and for creeping at elevated temperatures (C* and C-t integrals). The structural integrity of welded structures is mainly affected by cracks in welded joints. We demonstrate the practical application of fracture mechanics parameters to the evaluation of structural integrity under the above-mentioned loading conditions.
PB  - Plenum Publ Corp, New York
T2  - Materials Science
T1  - Crack significance evaluation with special reference to welded structures
EP  - 243
IS  - 2
SP  - 231
VL  - 32
DO  - 10.1007/BF02538903
ER  - 

@article{
author = "Sedmak, S and Petrovski, Blagoj and Sedmak, Aleksandar",
year = "1996",
abstract = "Fracture mechanics parameters (stress intensity factor K-I and its critical value K-Ic, crack opening displacement, and the contour J integral) are originally defined for static and quasistatic loading conditions. On the basis of theoretical background, standard test methods for the experimental determination of their specific values were developed. Structural integrity analysis requires the extension of application of these parameters to other types of loading. We propose new parameters for stress corrosion (stress corrosion cracking threshold K-Isco), for cyclic loading (stress intensity factor range Delta K and fatigue-threshold Delta K-th), and for creeping at elevated temperatures (C* and C-t integrals). The structural integrity of welded structures is mainly affected by cracks in welded joints. We demonstrate the practical application of fracture mechanics parameters to the evaluation of structural integrity under the above-mentioned loading conditions.",
publisher = "Plenum Publ Corp, New York",
journal = "Materials Science",
title = "Crack significance evaluation with special reference to welded structures",
pages = "243-231",
number = "2",
volume = "32",
doi = "10.1007/BF02538903"
}

Sedmak, S., Petrovski, B.,& Sedmak, A.. (1996). Crack significance evaluation with special reference to welded structures. in Materials Science
Plenum Publ Corp, New York., 32(2), 231-243.
https://doi.org/10.1007/BF02538903

Sedmak S, Petrovski B, Sedmak A. Crack significance evaluation with special reference to welded structures. in Materials Science. 1996;32(2):231-243.
doi:10.1007/BF02538903 .

Sedmak, S, Petrovski, Blagoj, Sedmak, Aleksandar, "Crack significance evaluation with special reference to welded structures" in Materials Science, 32, no. 2 (1996):231-243,
https://doi.org/10.1007/BF02538903 . .