... geology frictional resistance embedment depth geologist upstream oil & gas anchor resistance strength shear strength united states government reaction force method hossain algorithm penetration depth installation general contact method torpedo anchor node strain rate...

... ABSTRACT Sensitivity of ST52 steel for environmental assisted cracking (EAC) is experimentally investigated by slow strain rate tests (SSRT). An experimental set up is introduced and tensile test specimens are prepared according to ASTM E8. The strain rate, duration of cathodic protection (CP...

... the cyclic strain rate as well as the small-scale loading mode. The fatigue test results show significant difference between different loading modes and scales. It is also evident that fatigue- creep interaction is highly important. INTRODUCTION High voltage subsea power cables operating require...

... scale quasi-static bow crushing experiments performed by Yamada and Endo (2005). The dynamic crushing force-displacement relations, the strain rates and the energy absorption of the bow models are evaluated. An empirical relation is derived between the actual crushing velocity and the strain rates...

... displacement, low cycle fatigue, and constant K. The crack growth rate was found to be a strong function of the loading mode, with the higher applied strain rates resulting in higher crack growth rates. The lowest crack growth rates were measured under constant K conditions, where the applied strain rate...

... strength gradient of clay m Submerged mass of the ball su Undrained shear strength of clay sum Undrained shear strength at mudline su,ref Undrained shear strength of soil at reference strain rate suz Undrained shear strength at a depth z vi Velocity of ball at the time of impact vz Velocity of the ball...

... the compressive strengths changing with a range of load/strain rates. The direction for further promoting such a study on uniaxial compressive strength of model ice is outlined based on comprehensive analysis and evaluation of the testing results. INTRODUCTION The model tests for ice-going ships in ice tank...

... is strongly dependent on the strain rate. According to the studies by previous researchers, (Michel et al.(1977); Kim et al.(2007); Withalm et al.(2010 the compressive strength of each zone ,c i corresponding to the full-scale regime is approximated as eq. (1). 0.32 4 -1 4 0.1 4 -1 2 -1 , 4 2 -1 4.6 MPa...

... ABSTRACT This paper presents a dynamic large deformation finite element approach based on frequent mesh regeneration within the effective stress framework and investigates the penetration behavior of a dynamically installed anchor in normally consolidated kaolin clay. The strain rate...

..., Choung JM et al. (2012) introduced a new formulation to determine the material constant using the Cowper-Symonds constitutive equation for intermediate strain rates (0.001, 1, 10, 200/s) at room temperature and low temperatures. representative strain upstream oil & gas maximum load load...

... process, thus allowing for the DBTT to be adjusted automatically based on the actual design condition of the structure. KEY WORDS: Weibull Stress; Ductile-to-Brittle Transition; Fracture Toughness; Strain rate; Pre-strain INTRODUCTION Steels for use in maritime and offshore structures are designed...

... to extend the Idealized Structural Unit Method for dynamic collapse analyses of large structural units is presented. collapse behaviour deflection plate panel dynamic collapse behaviour strain rate thrust dynamic collapse analysis specimen lateral deflection fujikubo strength shell element...

... to obtain a first experimental assessment of the suitability of the chromium steel to be used. Then, finite element analyses are performed to numerically assess the process and give indications for improvement. upstream oil & gas tensile test low strain rate strain rate spinning table...

... and steel pipe and between different polymer layers and field joint material. A newly developed constitutive model for polymers is used. This material model takes into account strain rate and hydrostatic stress on plastic yielding, large strain hardening and ductile damage growth. stress-strain...

... high speed camera measurement. Numerical simulations are also carried out under the same conditions as the impact bending tests. The simulation results well agree with test results, but it is recognized that strain rate is a key factor to decide accuracy of numerical simulations. tensile test...

... evaluated under various loads at –5 and –10~. Based on the test results, as the load became close to the strength and the temperature became lower, the duration of the secondary creep became shorter and more distinct tertiary creep responses were observed. creep behavior characteristic strain rate...

... strength subsea system anchor engineering calcareous silt rate parameter undrained shear strength dynamic installation installation strain rate anchor embedment depth loughlin hossain upstream oil & gas offshore technology conference impact velocity randolph torpedo anchor Numerical...

... are compared, and the latter leads to a larger damage to soils than the former. gutierrez psr classical plasticity strain rate stress ratio engineering foundation volumetric strain prediction soil model model parameter test result model prediction principal stress rotation miura loading...

... in the commercial finite element package Abaqus. The simple elastic-perfectly plastic Tresca soil model was modified to allow strain softening, and incorporate strain rate dependency of the shear strength. The results were validated against centrifuge test data and existing numerical studies, with excellent...

... iceberg strength gas monetization collision response analysis technique midstream oil & gas interface segment characteristic round 0 damage configuration failure strain 0 lng internal energy configuration strain rate Structural Safety Assessment of LNGC CCS under Iceberg Collision...