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Artículo
On the Use of Strain Path Independent Metrics and Critical Distance Rule for Predicting Failure of AA7075-O Stretch-Bend Sheets
(MDPI, 2020-08)
The strain-based forming limit curve is the traditional tool to assess the formability of metal sheets. However, its application should be restricted to proportional loading processes under uniform strain conditions. ...
Artículo
Estimación del límite de fatiga bajo condiciones de fretting
(Grupo español de fractura, 2002)
La evidencia experimental muestra que bajo condiciones de fatiga por fretting, los primeros es-tadios de la propagación de las grietas están fuertemente influenciados por el gradiente de tensiones existente en el material ...
Ponencia
Numerical Modelling of Conventional and Incremental Forming of Thin-Walled Tube
(Trans Tech Publications Ltd., 2022)
This study presents a numerical analysis of the tube expansion process by conventional tube-end forming versus single point incremental forming (SPIF) using DEFORM. The work includes the assessment of the strain paths ...
Ponencia
Preliminary investigation on homogenization of the thickness distribution in hole-flanging by SPIF
(Elsevier, 2017-06)
A drawback of the hole-flanging process by single-stage SPIF is the non-uniform thickness obtained along the flange. Multi-stage strategies have been used to improve it, however they increase notably the manufacturing time. ...
Artículo
Influencia en la vida a fatiga de la presencia de rebaba en la intercara en uniones híbridas de aluminio CFRP remachadas
(Grupo español de fractura, 2015)
Las uniones remachadas hibridas de metal-composite se usan extensivamente en aeronáutica. El presente trabajo presenta un estudio experimental sobre la influencia en la resistencia a fatiga de la existencia de la rebaba ...
Artículo
Tube Expansion by Single Point Incremental Forming: An Experimental and Numerical Investigation
(MDPI, 2021-09)
In this paper, we revisit the formability of tube expansion by single point incremental forming to account for the material strain hardening and the non-proportional loading paths that were not taken into consideration ...
Artículo
On the Determination of Forming Limits in Polycarbonate Sheets
(MDPI, 2020-02)
By proposing an adaptation of the methodology usually used in metal forming, this paper aims to provide a general procedure for determining the forming limits, by necking and fracture, of polymeric sheet. The experimental ...
Artículo
Plastic flow equations for the local strain approach in the multiaxial case
(Gruppo Italiano Frattura (IGF), 2016)
This paper presents a system of plastic flow equations which uses and generalizes to the multiaxial case a number of concepts commonly employed in the so-called Local Strain Approach to low cycle fatigue. Everything is ...
Ponencia
Numerical study on the thickness homogenization in hole-flanging by single-point incremental forming
(Institute of Physics Publishing, 2018-08)
Incremental sheet forming is a novel technology that has significant benefits compared to conventional forming. However, it is a time-consuming process that is usually carried out in several forming stages to homogenize ...
Artículo
Analysis of formability in conventional hole flanging of AA7075-O sheets: punch edge radius effect and limitations of the FLC
(Springer, 2020-03)
Hole flanges are commonly manufactured in mass production by conventional press-working. In an industrial context, the process limits are usually evaluated by means of the Limiting Forming Ratio (LFR), which defines the ...