RT info:eu-repo/semantics/article
T1 Ring Hoop Tension Test for yield strength estimation: Numerical analysis for a novel correlation method and applicability for mechanical testing of tubes and pipes
A1 Calaf Chica, José
A1 Martínez Peña, Jorge
A1 Bravo Díez, Pedro Miguel
A1 Preciado Calzada, Mónica
K1 Small Ring Test
K1 Ring Hoop Tension Test
K1 Yield  strength
K1 Pipes
K1 Tubes
K1 Ingeniería civil
K1 Civil engineering
K1 Materiales de construcción
K1 Building materials
AB The tubes and pipes manufacturing industry characterizes the mechanical properties of their products with awide selection of standards, but most of them are qualitative testing methodologies. To estimate the mechanicalproperties from a quantitative point of view there are limited options in standards. In that sense, the standardtensile test is the preferred alternative by the manufacturers, but this option limits the mechanical estimationfor the longitudinal direction of the tube–pipe product. Particular efforts have been made to design analternative mechanical testing procedure to characterize the mechanical properties in the hoop direction ofpipes and tubes. The Ring Hoop Tension Test (RHTT) was designed to fill this gap, but it shows limitationsrelated to the required tooling and the influence of the frictional contact between the tooling and the ringspecimen. In the nuclear industry, the Small Ring Test (SRT), a miniature test derivated from the RHTT, hasbeen investigated in recent years. In this investigation, a novel RHTT was designed to overcome the limitationsof SRT and RHTT, and a new procedure was implemented to estimate the yield strength of tubes and pipes.Numerical FEM simulations were performed to reach an optimum estimation method for the yield strength withthe specific geometry of the SRT and a wide selection of pipe geometries with the RHTT. A set of hypotheticalmaterials were designed to perform these analyses, taking into account the influence of Young’s modulus,proportional limit, hardening coefficient (based on the Ramberg–Osgood law), and presence of Lüders bandsstraining. To verify the results obtained from this numerical FEM analysis, experimental tests (standard tensiletests and RHTTs) and metallographic analysis were performed on aluminum Al 6063 T6 and copper C12200R360 tubes, showing the capability of this optimized RHTT to estimate the yield strength in the hoop directionfor anisotropic tubes and pipes.
PB Elsevier
SN 0167-6636
YR 2022
FD 2022-06
LK http://hdl.handle.net/10259/7478
UL http://hdl.handle.net/10259/7478
LA eng
DS Repositorio Institucional de la Universidad de Burgos
RD 06-may-2024