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Št. zadetkov: 3
Intrinsic fatigue limit and the minimum fatigue crack growth threshold
Mirco Daniel Chapetti, Nenad Gubeljak, Dražan Kozak
Izvirni znanstveni članek
Oznake: mehanika loma;utrujenost materiala;meja utrujenosti materiala;deformacije;razpoke;mikrostruktura;zlitine;intrinsic fatigue limit;microstructural fatigue threshold;material defects;fracture mechanics;intrinsic fatigue resistance;
In the field of long-life fatigue, predicting fatigue lives and limits for mechanical components is crucial for ensuring reliability and safety. Fracture mechanics tools have enabled the estimation of fatigue lives for components with small cracks or defects. However, when dealing with defects large ...
Leto: 2023 Vir: Fakulteta za strojništvo (UM FS)
Fracture mechanics analysis of a fatigue failure of a parabolic spring
Mirco Daniel Chapetti, Bojan Senčič, Nenad Gubeljak
Izvirni znanstveni članek
Oznake: mehanika loma;kratke razpoke;majhne napake;spring;fracture mechanics;short cracks;fatigue strenght estimation;small defect assessment;
This study analyzed the fatigue failure of a parabolic spring made of 51CrV4 steel. A fracture mechanics approach was used to quantify the driving force and resistance for different loading configurations, inclusion sizes, and residual stresses. The analysis considered surface and internal initiatio ...
Leto: 2023 Vir: Fakulteta za strojništvo (UM FS)
Numerical modelling and experimental validation of the Pipe-Ring notched Bend (PRNB) specimen for elasto-plastic fracture mechanics
Darko Damjanović, Dražan Kozak, Mirco Daniel Chapetti, Nenad Gubeljak
Izvirni znanstveni članek
Oznake: mehanika loma;vzorec zareznega ovinka za cevni obroč;optimizacija mreže;eksperimentalna validacija, J–R, CTOD–R;krivulje upora;fracture mechanics;J-integral;pipe−ring notched bend specimen;mesh optimization;experimental validation, J–R, CTOD–R,;resistance curves;
This paper presents the development and experimental validation of a finite element model for the Pipe-Ring Notched Bend (PRNB) specimen, a promising and increasingly recognized alternative for evaluating the fracture toughness of pipe materials. The study focuses on the accurate evaluation of the J ...
Leto: 2026 Vir: Fakulteta za strojništvo (UM FS)
Št. zadetkov: 3
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