Development of axial and ring hoop tension testing methods for nuclear fuel cladding tubes

Kamerman, David; Cappia, Fabiola; Wheeler, K.R.; Petersen, Philip; Rosvall, Erik S; Dabney, Tyler; Yeom, Hwasung; Sridharan, Kumar; Ševeček, Martin; Schulthess, Jason

doi:10.1016/j.nme.2022.101175

Cited by 6 publications

(1 citation statement)

References 21 publications

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“…However, it is impossible to measure the anisotropy coefficients in any direction through uniaxial tensile tests such as sheet metal for thin-walled tubes due to its closed structure along the hoop direction [ 15 ]. At present, only the anisotropy coefficients along the axial and hoop directions can be measured by the uniaxial tensile test and the hoop tensile test [ 16 , 17 , 18 ], respectively. Some researchers performed uniaxial tensile tests by flattening specimens which are cut in different directions of the tube [ 19 ].…”

Section: Introductionmentioning

confidence: 99%

Identification of Anisotropic Coefficients in the Non-Principal Axis Directions of Tubular Materials Using Hole Bulging Test

Lin

Wang

et al. 2023

Materials

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We propose an experimental method to identify anisotropic coefficients in non-principal axis directions of thin-walled tubes. The method involves extracting specimens from the parent tubes and machining a hole in the axial center. The specimens are then inserted into a tube without a hole. The inner diameter of the specimen is theoretically equal to the outer diameter of the inner tube. The double-layer tube undergoes free bulging under internal pressure in our self-developed experimental equipment, with the hole on the specimen expanding simultaneously. The stress states around the hole are uniaxial, and the hole deformation can reflect the anisotropic plastic flow characteristics of the tube. Furthermore, based on the information obtained from the proposed experimental method, a hybrid numerical–experimental method was used to identify the anisotropic coefficients of tubes. Through FE simulations, the relationships between the thickness, stress, and strain states around the hole, the hole shape, and anisotropic coefficients of non-principal axis directions are revealed, and the factors that affect the hole deformation are analyzed. Finally, the hole bulging experiments and FE simulations of AA6061-O extruded tube were conducted, and modeled with Hill48 and calibrated by uniaxial tensile and hoop tensile tests. Its in-plane anisotropy coefficients in any direction are given for the first time which first increase and then decrease from 0° to 90°, reaching a maximum of 1.13 in 60° and a minimum of 0.69 in 0°. This work can provide the key experimental data for establishing an accurate anisotropic plastic constitutive model of thin-walled tubes.

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Section: Introductionmentioning

confidence: 99%

Identification of Anisotropic Coefficients in the Non-Principal Axis Directions of Tubular Materials Using Hole Bulging Test

Lin

Wang

et al. 2023

Materials

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Image fusion for neutron tomography of nuclear fuel

Chuirazzi

Kane²,

Craft³

et al. 2022

J Radioanal Nucl Chem

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Image fusion, the process of combining different images together, can be useful to create a more complete picture. In this work, image fusion is applied to neutron tomography of nuclear fuel with the goal of enhancing the information obtained about the fuel. Different reconstruction methods, such as Feldkamp, Davis and Kress filtered back projection and Simultaneous Reconstruction Technique, were combined to enhance image quality. This methodology was shown to reduce noise and ring artifacts without sacrificing sharp edges, allowing for a more accurate representation of sample geometry. Technique enhancements and future applications for the neutron imaging community are also discussed.

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Using tube specimen to investigate the creep behavior of FeCrAl fuel cladding tubes

Lai

Jiang

Zhong

et al. 2023

Engineering Fracture Mechanics

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Development of axial and ring hoop tension testing methods for nuclear fuel cladding tubes

Cited by 6 publications

References 21 publications

Identification of Anisotropic Coefficients in the Non-Principal Axis Directions of Tubular Materials Using Hole Bulging Test

Identification of Anisotropic Coefficients in the Non-Principal Axis Directions of Tubular Materials Using Hole Bulging Test

Image fusion for neutron tomography of nuclear fuel

Using tube specimen to investigate the creep behavior of FeCrAl fuel cladding tubes

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