Search Results - "Nikbin, K."

A unified multiscale ductility exhaustion based approach to predict uniaxial, multiaxial creep rupture and crack growth by Nikbin, K.

“…Numerical and analytical methods for predicting uniaxial damage have largely depended on the constituent components of the stress/strain measured data which…”
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Review on fracture and crack propagation in weldments – A fracture mechanics perspective by Zerbst, U., Ainsworth, R.A., Beier, H.Th, Pisarski, H., Zhang, Z.L., Nikbin, K., Nitschke-Pagel, T., Münstermann, S., Kucharczyk, P., Klingbeil, D.

“…•Comprehensive review on fracture mechanics application to weldments.•Discussion of recent developments in areas such as materials testing, strength mismatch…”
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Multiscale-constraint based model to predict uniaxial/multiaxial creep damage and crack growth in 316-H steels by Nikbin, K., Liu, S.

“…•A new unifying analytical approach to predict creep rupture and crack growth rates by deriving a multiscale strain-based constraint criterion.•In essence, the…”
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Justification for meso-scale modelling in quantifying constraint during creep crack growth by Nikbin, K

“…Meso-scale models over a range of 50–500 μm are employed for predicting crack growth in the creep range. They make use of fracture mechanics, creep damage…”
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An analytical and numerical approach to multiscale ductility constraint based model to predict uniaxial/multiaxial creep rupture and cracking rates by Alang, N.A., Nikbin, K.

“…•Constraints/Ductility based approach to predict uniaxial/multiaxial creep rupture and creep cracking rates in P92 steel.•Correlation between Monkman-Grant…”
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A new approach to predict creep rupture of Grade 92 steel under multiaxial stress states by Alang, N.A., Nikbin, K.

“…•A new approach to predict the creep rupture life with substantial scatter data was presented.•The Kachanov's Continuum Damage Model (CDM) and strain-based…”
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Experimental study of type 316 stainless steel failure under LCF/TMF loading conditions by Hormozi, R., Biglari, F., Nikbin, K.

“…•Strain-controlled isothermal LCF tests were conducted at 500 and 650°C.•Fully reversed TMF tests were conducted at 500–650°C at various strain…”
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Investigating creep rupture and damage behaviour in notched P92 steel specimen using a microscale modelling approach by Zhao, L., Alang, N., Nikbin, K.

“…ABSTRACT Idealized random grains separated by pseudo grain boundaries were generated by using Voronoi tessellation to simulate the polycrystalline…”
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Environmental creep intergranular damage and multisite crack evolution model for engineering alloys by Biglari, F., Nikbin, K.M.

“…•Combined creep damage and environmentally assisted time dependent damage model.•The time and stress induced intergranular damage and cracking…”
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Experimental and numerical creep–fatigue study of Type 316 stainless steel failure under high temperature LCF loading condition with different hold time by Hormozi, R., Biglari, F., Nikbin, K.

“…•Strain-controlled LCF tests were conducted at 650°C on various strain ranges.•Symmetrical hold time introduced to observe the interaction of…”
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Determination of Long-Term Creep Properties for 316H Steel Using Short-Term Tests on Pre-strained Material by Zhou, H., Mehmanparast, A., Nikbin, K.

“…Determination of long-term creep rupture properties for 316H steel is both costly and time-consuming and given the level of scatter in the data would need…”
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The Buckling Behavior of Vacuum-Infused Open-Hole Unidirectional Basalt-Fiber Composites Experimental and Numerical Investigations by Lamea, M., Daghigh, V., Soroush, M., Nikbin, K.

“…Basalt-fiber-reinforced epoxy (BFRE) composite laminates fabricated using the vacuum infusion process were subjected to axial compression to assess their…”
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The influence of pre-compression on the creep deformation and failure behaviour of Type 316H stainless steel by Mehmanparast, A., Davies, C.M., Dean, D.W., Nikbin, K.M.

“…•The pre-compression effects on the creep deformation and crack growth of 316H have been examined.•Pre-compression causes an increase in the yield stress and a…”
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The influence of test duration and geometry on the creep crack initiation and growth behaviour of 316H steel by Davies, C.M., Dean, D.W., Yatomi, M., Nikbin, K.M.

“…Short-term creep crack growth (CCG) tests have often been performed so that they may be incorporated into research projects with a relatively narrow time…”
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A diffusion driven carburisation combined with a multiaxial continuum creep model to predict random multiple cracking in engineering alloys by Biglari, F.R., Nikbin, K.M.

“…•Randomised crack growth model.•Combined grain boundary and grain mesh structure.•Simulation of surface hardening and intergranular cracking.•Surface gas/solid…”
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A Unified Potential Drop Calibration Function for Common Crack Growth Specimens by Tarnowski, K.M., Nikbin, K.M., Dean, D.W., Davies, C.M.

“…Calibration functions, used to determine crack extension from potential drop measurements, are not readily available for many common crack growth specimen…”
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Characterizing high temperature crack growth behaviour under mixed environmental, creep and fatigue conditions by Zhao, L., Nikbin, K.M.

“…Components in high temperature plant could undergo failure due to combinations of fatigue, creep or oxidation/corrosion depending on the loading, temperature…”
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Low velocity impact analysis of laminated composite plates using a 3D elasticity based layerwise FEM by Setoodeh, A.R., Malekzadeh, P., Nikbin, K.

“…A three-dimensional elasticity based approach coupled with layerwise laminated plate theory are employed to conduct low velocity impact analyses of general…”
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Theoretical and numerical modelling of creep crack growth in a carbon–manganese steel by Yatomi, M., O’Dowd, N.P., Nikbin, K.M., Webster, G.A.

“…This paper presents an analytical and numerical study of time dependent crack growth at elevated temperatures. A triaxiality dependent damage model is used to…”
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Taguchi sensitivity analysis of damage parameters for predicting the damage Mechanism of 9Cr steel under low-cycle fatigue test by Hormozi, R., Biglari, F., Nikbin, K.

“…ABSTRACT Numerical investigations of low‐cycle fatigue damage parameters of a 9Cr steel have been studied and compared with the previous results in order to…”
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