Browsing Fakultet for ingeniørvitenskap (IV) by Author "P. Zarandi, Ershad"
Now showing items 1-4 of 4
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Cyclic behavior and strain energy-based fatigue damage analysis of mooring chains high strength steel
P. Zarandi, Ershad; Skallerud, Bjørn Helge (Peer reviewed; Journal article, 2020)This study investigates the low-cycle fatigue behavior of mooring chains high-strength steel grade R4 under different strain amplitudes and strain ratios at room temperature. A fatigue test program has been carried out on ... -
Data on residual stresses of mooring chains measured by neutron diffraction and hole drilling techniques
P. Zarandi, Ershad; lee, tong; Skallerud, Bjørn Helge (Peer reviewed; Journal article, 2020)Residual stresses in large offshore mooring chains have been measured for the first time and presented in this article. Two chain links with the same size and material, one only subjected to proof load and no cyclic service ... -
Digital image correlation for continuous mapping of fatigue crack initiation sites on corroded surface from offshore mooring chain
Qvale, Paul; P. Zarandi, Ershad; Ås, Sigmund Kyrre; Skallerud, Bjørn Helge (Peer reviewed; Journal article, 2021)The full-field digital image correlation (DIC) technique was used to identify crack initiation and early crack growth on irregular, corroded surfaces from offshore mooring chain. Finite element analysis was paired with the ... -
Experimental and numerical study of mooring chain residual stresses and implications for fatigue life
P. Zarandi, Ershad; Skallerud, Bjørn Helge (Peer reviewed; Journal article, 2020)Residual stresses in large mooring chains were measured for the first time in this study. Two measurement techniques were employed (neutron diffraction and hole drilling). Elastic-plastic finite element simulation of the ...