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Thermal shock

3-D Thermal Weight Function Method and Multiple Virtual Crack Extension Technique for Thermal Shock Problems

3-D Thermal Weight Function Method and Multiple Virtual Crack Extension Technique for Thermal Shock Problems

... 3-D cracks occur frequently in reactor vessels and piping. The assessment of safety of such structures subjected to pressurized thermal shock is an important problem. In order to evaluate the safety of such ...

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Fracture analysis of the limit a curve for reactor integrity subjected to pressurized thermal shock (pts)

Fracture analysis of the limit a curve for reactor integrity subjected to pressurized thermal shock (pts)

... Pressurized Thermal Shock (PTS) is dependent on the RCS cooldown rate, a method is needed to conservatively eliminate rate dependence from the limit ...

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Pressurized thermal shock (pts) analysis in german nuclear power plants

Pressurized thermal shock (pts) analysis in german nuclear power plants

... This resulted in a load case which caused a combined Pressurized Thermal Shock (PTS) for the RPV different from the previously considered isolated Thermal Shock (TS). Due to the increasing ...

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Probabilistic Structural Integrity of Reactor Vessel under Pressurized Thermal Shock

Probabilistic Structural Integrity of Reactor Vessel under Pressurized Thermal Shock

... pressurized thermal shock (PTS) has been designated as a severe safety ...pressurized thermal shock involves a transient in which severe overcooling causes a thermal shock to the ...

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Analyses   of Fracture Toughness Tests and Application to NESC II Thermal Shock Experiments

Analyses of Fracture Toughness Tests and Application to NESC II Thermal Shock Experiments

... Both models were loaded by internal pressure, axial load and thermal shock at the inner surface according to the test conditions. For the cylinder NP2 the internal pressure was 58 bar, the axial load 43 MN ...

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The Effect of Carbon Sources on the Thermal Shock Properties of MgO C Refractories

The Effect of Carbon Sources on the Thermal Shock Properties of MgO C Refractories

... the thermal shock test, it was observed that CCS and 3-bending strength values increased as the open porosity values decreased, and thus strength was affected inversely by the porosity for all ...the ...

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Investigating the effect of thermal shock factors and different cell treatments on bacterial transformation efficiency

Investigating the effect of thermal shock factors and different cell treatments on bacterial transformation efficiency

... of thermal shock factors and different cellular treatments on bacterial transformation ...increased thermal shock from 37 to 47°C in a constant cold shock (0°C) was associated with ...

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Effect of Thermal Shock on Bending Strength of Composites Made from Fly Ash and Glass Waste

Effect of Thermal Shock on Bending Strength of Composites Made from Fly Ash and Glass Waste

... A thermal shock test was performed on the specimen composites of 50FA-50GL by heating up to various temperatures and followed by quenching (rapid cooling) to water ...the thermal shocked ...

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Experimental and Numerical Investigation of Cyclic Thermal Shock at Paul Scherrer Institut

Experimental and Numerical Investigation of Cyclic Thermal Shock at Paul Scherrer Institut

... cyclic thermal shock facility allowing experiments under well defined loading and boundary condi- tions is ...the thermal shock experiments and to compute the stress strain ...

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Optimization of Thermal Shock for Poliplody Induction in Rainbow Trout (Oncorhynchus mykiss) under Photoperiodic Control of Spawning

Optimization of Thermal Shock for Poliplody Induction in Rainbow Trout (Oncorhynchus mykiss) under Photoperiodic Control of Spawning

... heat shock treatment for retention of the second polar body of the eggs in rainbow trout induced off-season spawning is not identical to that which has been often considered the optimum for those obtained in ...

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Computation of Stress Intensity Factor in Functionally Graded Plates under Thermal Shock

Computation of Stress Intensity Factor in Functionally Graded Plates under Thermal Shock

... For thermal shock analysis, the modal decomposition method, which is a semi-discretization approach, is implemented to obtain the transient temperature ...the thermal shock, indicating its ...

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Vibration of Gold Nano Beam with Variable Young’s Modulus Due to Thermal Shock

Vibration of Gold Nano Beam with Variable Young’s Modulus Due to Thermal Shock

... E = − γ T . (4) In this paper, the non-Fourier effect on heat conduction, and the coupling effect between temperature and strain rate in the nano-scale beam will be studied when Young’s modulus is variable as a function ...

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Strain Measurements During Pressurized Thermal Shock Experiment

Strain Measurements During Pressurized Thermal Shock Experiment

... For the life extension of nuclear power plants, the residual life of most of their components must be evaluated along all their operating time. Concerning the reactor pressure vessel, the pressurized thermal ...

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Air Plasma Sprayed Bond Coat Oxidation Behavior and its Resistance to Isothermal and Thermal Shock Loading

Air Plasma Sprayed Bond Coat Oxidation Behavior and its Resistance to Isothermal and Thermal Shock Loading

... of Thermal Barrier Coatings (TBCs) on their oxidation behaviour and resistance to various thermal ...and thermal shock tests were performed in order to study oxidation behaviour of air plasma ...

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Crack Growth Behavior in Cemented Carbide by Repeated Thermal Shock

Crack Growth Behavior in Cemented Carbide by Repeated Thermal Shock

... In this study, fatigue crack growth (FCG) behavior of cemented carbide under the repeated thermal shock (RTS) was experimentally evaluated by using the thermal-shock experiment method ...

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COMPARATIVE ANALYSIS OF EFFECT OF THERMAL SHOCK ON ADHESIVE JOINT STRENGTH

COMPARATIVE ANALYSIS OF EFFECT OF THERMAL SHOCK ON ADHESIVE JOINT STRENGTH

... + 10% Z1, Epidian 5 + 100% PAC curing agent and Epidian 6 + 100% PAC. Joint curing condi- tions were specified in all tests: cure temperature 21–22 °C, relative humidity 35-40%, load applied during curing 0,2 MPa and ...

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Technical Basis for Revision of the Pressurized Thermal Shock (PTS) Screening Limit in the PTS Rule (10CFR50.61)

Technical Basis for Revision of the Pressurized Thermal Shock (PTS) Screening Limit in the PTS Rule (10CFR50.61)

... One potentially significant challenge to the structural integrity of the reactor pressure vessel (RPV) in a pressurized water reactor (PWR) is posed by a PTS event wherein rapid cooling of the downcomer occurs, an event ...

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The Effect of Magnetic Field and Thermal Relaxation Time on Three Dimensional Thermal Shock Problem in Generalized Thermoelasticity

The Effect of Magnetic Field and Thermal Relaxation Time on Three Dimensional Thermal Shock Problem in Generalized Thermoelasticity

... and thermal relaxation time on a general three-dimensional model of the equations of generalized magneto-thermoelasticity in a homogeneous, isotropic, thermally and perfectly conducting elastic half-space solid ...

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Three Dimensional Fracture Analysis of the Reactor Pressure  Vessel Inlet Nozzle Under Pressurized Thermal Shock

Three Dimensional Fracture Analysis of the Reactor Pressure Vessel Inlet Nozzle Under Pressurized Thermal Shock

... This paper presents a 3D FE mechanical analysis of the brittle fracture risk of a Reactor Pressure Vessel (RPV) inlet nozzle corner submitted to a Pressurized Thermal Shock (PTS). The input transient ...

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A Thermal Shock Chemical Reactive Problem in Flow of Viscoelastic Fluid with Thermal Relaxation

A Thermal Shock Chemical Reactive Problem in Flow of Viscoelastic Fluid with Thermal Relaxation

... of thermal and species diffusion with one relaxation time on the boundary layer flow of a viscoelastic fluid bounded by a vertical surface in the presence of transverse magnetic field have been ...a thermal ...

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