Blar i Institutt for maskinteknikk og produksjon på tidsskrift "Engineering Fracture Mechanics"
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A synthesis of geometry effect on brittle fracture
(Journal article, 2018)There are numerous analytical solutions in order to take into account the geometry effect on the fracture toughness and the fracture load of the cracked specimens. However, due to the complexities of the mentioned criteria ... -
Acoustic emission study on the effect of notch shape and temperature on elastic energy release during impact testing of 17Mn1Si pipe steel
(Journal article; Peer reviewed, 2018)Main fracture mechanisms are determined in 17Mn1Si steel during impact Charpy testing of specimens with three types of notches at different test temperatures covering ductile-to-brittle transition. The influence of the ... -
Applicability of strain energy density criterion for fracture prediction of notched PLA specimens produced via fused deposition modeling
(Peer reviewed; Journal article, 2021)The Averaged Strain Energy Density (ASED) criterion is validated for the failure prediction of notched Polylactide Acid specimens fabricated by Fused Deposition Modeling by means of experimental data and the results are ... -
Averaged strain energy density criterion for rupture assessment of cracked rubbers: A novel method for determination of critical SED
(Journal article; Peer reviewed, 2018)In the present study, the application of averaged strain energy density (ASED) criterion has been extended to hyperelastic materials. Because of the material and geometry nonlinearities, commonly known for rubber-like ... -
Effect of fracture mode on acoustic emission behavior in the hydrogen embrittled low-alloy steel
(Journal article; Peer reviewed, 2018)Hydrogen embrittlement (HE) of steels and other alloys is a long-standing scientific and engineering problem causing sudden premature failures of industrial components. Although several mechanisms of hydrogen-assisted ... -
EMTSN criterion for evaluating mixed mode I/II crack propagation in rock materials
(Journal article; Peer reviewed, 2018)This paper investigates the results of brittle fracture in rock materials subjected to the mixed mode I/II loading using different fracture criteria. Two sets of mixed mode fracture test data in the entire range of mode ... -
Hydrogen enhanced fatigue crack growth rates in a ferritic Fe-3 wt%Si alloy and a X70 pipeline steel
(Journal article; Peer reviewed, 2019)It is well known that ferrous materials can be damaged by absorption of hydrogen. If a sufficient quantity of hydrogen penetrates into the material, static fracture and the material's fatigue performances can be affected ... -
Quasi-cleavage hydrogen-assisted cracking path investigation by fractographic and side surface observations
(Journal article; Peer reviewed, 2019)Despite recent substantial advances in understanding of hydrogen embrittlement (HE), many important aspects of this widespread phenomenon remain a subject of debates. Particularly, remarkably different opinions have been ... -
Simulation of ductile-to-brittle transition combining complete Gurson model and CZM with application to hydrogen embrittlement
(Journal article; Peer reviewed, 2022)A general simulation framework for modelling ductile-to-brittle transition in metals is proposed. The method combines the complete Gurson model and cohesive zone model, which brings ductile and brittle fracture mechanisms ... -
T-stress effects on fatigue crack growth – Theory and experiment
(Journal article, 2018)The effects of specimen geometry on the fatigue crack growth rate and the number of elapsed cycles have been investigated experimentally and theoretically for Al 7075-T6 using four different cracked specimens with positive ... -
Temperature dependence of the shear strength in adhesively bonded joints reinforced with multi-walled carbon nanotubes
(Journal article; Peer reviewed, 2018)In this paper, the temperature dependence of the strength of adhesively bonded shear lap joint reinforced with multi-walled carbon nanotubes (MWCNTs) was studied. The results showed that increasing the testing temperature ... -
Understanding the fracture behavior of brittle and ductile multi-flawed rocks by uniaxial loading by digital image correlation
(Journal article; Peer reviewed, 2018)Fracturing behavior of ductile multi-flawed rock mass is very different from those of brittle multi-flawed rock mass. However, there is a very vague distinction of the fracture mechanism of ductile multi-flawed rock mass ...