Simulating structural collapse of a PWR containment

Prinja, Nawal; Shepherd, David; Curley, Jim

doi:10.1016/j.nucengdes.2005.05.027

Cited by 15 publications

(3 citation statements)

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“…NNC Limited under contract from the Health and Safety Executive in the UK conducted a full 3D global model analysis of the PCCV taking into account interaction between all the main structural features. The work is reported in References [6] and [7] which show that the failure mode was successfully predicted by the global model analysis. NNC Limited is now sponsored by British Energy to participate in the ISP48 project.…”

Section: Introductionmentioning

confidence: 95%

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Predicting Hoop Tendon Behaviour in Pre-Stressed Concrete Containment Vessel

Prinja¹,

Hessheimer²,

Dameron³

2004

AMM

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This paper is based on the experimental and numerical analysis work carried out as part of an international round robin aimed to predict the limit load of the ¼ scale Pre-stressed Concrete Containment Vessel (PCCV) which was tested at Sandia National Laboratories (SNL) in USA. The design pressure, Pd, for the PCCV was 0.39MPa. Pressurisation test was conducted causing global collapse of the PCCV structure, which occurred at the pressure of 1.423MPa (3.65 Pd). Displacements, loads and strains were monitored at 55 standard locations giving a unique opportunity to assess the accuracy and reliability in predicting failure modes and limit loads of PCCV structures. To simulate the inelastic response of the structure with extensive concrete cracking requires specialist numerical models and detailed geometric representation of the main structural features. One of the most important structural features was the prestressed hoop tendon system. The paper presents a brief explanation of the test, the instrumentation used to monitor the tendon behaviour and describes the analytical models employed to predict the tendon behaviour.

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Section: Introductionmentioning

confidence: 95%

“…In the 3D full global model analysis conducted by NNC [6] and [7], the liner was modelled using finite strain membrane type elements as it is primarily loaded by in-plane tension and shear. To simulate stretching and shearing of the liner, the liner anchorage stiffness was represented by use of spring elements.…”

Section: D Global Model Analysis By Nncmentioning

confidence: 99%

Predicting Hoop Tendon Behaviour in Pre-Stressed Concrete Containment Vessel

Prinja¹,

Hessheimer²,

Dameron³

2004

AMM

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“…At the macroscale, a variety of software and code packages exist to simulate nuclear concrete under physical stress (Maruyama et al 2016;Piotrowski et al 2012) and/or chemical attack (Kari and Puttonen 2009). The concrete containment structure in NPPs has been studied extensively at full scale using FEM (Hora and Patzk 2007;Tamayo and Awruch 2016;Prinja et al 2005;Lundqvist and Nilsson 2011;Huang et al 2017). These works provide valuable information on loss of prestress, weak points, and long-term macroscale behavior.…”

Section: Introductionmentioning

confidence: 99%

MOSAIC: An Effective FFT-based Numerical Method to Assess Aging Properties of Concrete

Torrence

Giorl

et al. 2021

ACT

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As the nuclear fleet in the United States ages and subsequent license renewal applications grow, the prediction of concrete durability at extended operation becomes more important. To address this issue, a Fast-Fourier Transform (FFT) method is utilized to simulate aging-related degradation of concrete within the Microstructure Oriented Scientific Analysis of Irradiated Concrete (MOSAIC) software. MOSAIC utilizes compositional phase maps to simulate damage from radiation-induced volumetric expansion (RIVE), applied force, creep, and thermal expansion. This compositional detail allows each mineral in the microstructure to be assigned specific material properties, allowing the simulation to be as accurate and representative as possible. The principal goal of MOSAIC is to simulate the effects of nonlinear aging mechanisms occurring in nuclear concrete on the macroscopic mechanical properties, using only the aggregate microstructure compositional information as a starting point. Several realistic example simulations are shown to demonstrate the utility and uniqueness of the MOSAIC software.

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Ultimate internal pressure of Prestressed Concrete Containment Vessel analyzed by an integral constitutive model

Zhang

Chen

2016

KSCE J Civ Eng

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Simulating structural collapse of a PWR containment

Cited by 15 publications

References 0 publications

Predicting Hoop Tendon Behaviour in Pre-Stressed Concrete Containment Vessel

Predicting Hoop Tendon Behaviour in Pre-Stressed Concrete Containment Vessel

MOSAIC: An Effective FFT-based Numerical Method to Assess Aging Properties of Concrete

Ultimate internal pressure of Prestressed Concrete Containment Vessel analyzed by an integral constitutive model

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