... geology japan government plate tectonics geologist transformation steel mining constitutive equation hydraulic fracturing plastic strain tensile test stainless steel module plastic deformation metals & mining deformation tank fraction earthquake material constitutive equation...

... tension is the easiest condition to be martensite. japan government steel mining martensite expansion asia government plastic strain specimen metals & mining metastable austenitic stainless steel transformation martensitic transformation stress field displacement stainless steel...

... strike-slip fault reservoir characterization strength pipeline burial depth ratio case study lateral displacement seabed soil trajectory canada government shear band failure mechanism lateral soil resistance plastic strain Proceedings of the Thirty-third (2023) International Ocean...

... affects the construction accuracy and cost (Li et al., 2021). As a result, predicting and mitigating buckling distortion in welded structures are of great significance in enhancing structural integrity and productivity. additional heat source welding arc plastic strain conventional welding...

... the processing efficiency. Zhao (2017) proposed to combine line heating and roller bending for surface processing. By combining different machining tools with each other, a richer deformation can be produced. plastic strain calculation x-direction longitudinal direction in-plane strain shipbuilding...

... welding hacc proceedings transformation test piece microstructure bead hardness hydrogen hydrogen concentration high strength steel inspection plastic strain steel fusion zone simulation prediction diffusion ABSTRACT Hydrogen-assisted cold cracking (HACC) is one...

... different loading path fatigue crack growth phase difference simulation metals & mining loading path hydraulic fracturing crack tip crack growth specimen growth behavior numerical simulation plastic strain non-proportional loading path propagation hysteresis curve y-axis...

... under low cycle fatigue loading. THE THEORETICAL ANALYSIS Accumulative increment plastic strain of crack tip under cyclic loads Adopting the Chaboche model (Chaboche et al., 1989), HU(2012) for material, the yield function is: f1( , x,R0 , K )= J ( X ) R0 K 0 (1) where x is the nonlinear...

... the action of high stress, due to the inevitable three-dimensional cracks in the marine structure itself, serious stress concentration will appear in the region of the crack tip. When the stress reaches the yield limit that the material can withstand, irreversible plastic strain will be generated...

..., there is a potential that tensile strain limit for leakage can be improved by appropriately controlling welds. However, a guideline for controlling the welds to improve tensile strain limit for leakage has not been presented. plastic strain crack growth behavior piping simulation ductile crack initiation...

..., Jelovica, Romanoff, & Kurmiste, 2014), (Ehlers, Tabri, Romanoff, & Varsta, 2012), (St-Pierre, Deshpande, & Fleck, 2015), (Rubino, Deshpande, & Fleck, 2008)). romanoff design space crashworthiness plastic strain sandwich panel position 2 triaxiality optimization problem...

... manufacturing process ovality plastic deformation compression structural performance influence variable residual stress stress-strain curve collapse strength pipeline external pressure plastic strain midstream oil & gas material model diameter Evaluation of Structural Performance...

... plates. Then, Thermo-Elasto-Plastic (TEP) FE analysis was carried out to predict the out-ofplane bending deformation generated by induction heating, which has a good agreement with it by measuring. With the integration of computed plastic strains caused by induction heating, elastic FE analysis...

... welding wellbore design plastic strain Local Mechanical Properties Estimation of Friction Stir Welded Al-Mg-Si Joints Oleg V. Panchenko, Sergey Yu. Ivanov, Anton A. Naumov, Fedor Yu. Isupov, Anatoly A. Popovich Peter the Great St. Petersburg Polytechnic University St.Petersburg, Russia ABSTRACT...

... offshore pipeline initial imperfection plastic strain axial stress upstream oil & gas numerical simulation different length long pipeline Effect of Initial Imperfection on the Global Buckling of Submarine Pipelines with Different Length Run Liu 1, Chengfeng Li 1, Xinli Wu 2 1. State Key...

... that increased accumulated strain during re-reeling may reduce the fracture toughness (FT) and/or increase the fatigue crack growth rate (FCGR) of pipeline girth welds. A test program was conducted in an acidizing environment to quantify the impact of accumulated plastic strain on the FCGR and FT of girth welds...

... of the rupture of wrinkled pipes. pipeline piping design plastic strain loading condition curvature ductile fracture rupture stress triaxiality deformation polar engineering conference deviatoric stress invariant piping simulation buckle internal pressure wierzbicki ductile fracture...

... reservoir simulation particle particle hydrodynamic tensor simulation upstream oil & gas failure progress numerical simulation kujala fracture pattern ice beam specimen stress tensor failure process plastic strain equation sph compression Numerical simulation of failure progress...

...) with exp (2a) (2b) where and are material hardening parameters; and are the current plastic strain and its rate; and are the accumulated plastic strain and its rate; and, the subscript 0 denotes the value at the last change of plastic strain. 24 Proceedings of the Twenty-seventh...

... strain pJ : 0 0 ( ) pf p pB M M JM M J (1) 0 0 ( pf p c c c c c B JJ (2) where c is the cohesion; M is the friction angle; the subscripts 0 and f denote the initial and failure state, respectively; pB and cB represent respectively the values of the equivalent plastic strains for which half...