A method of detecting the onset of localized necking based on surface geometry measurements
To more accurately capture the onset of localized necking and obtain necking limit strains,
this paper proposes a method of detecting the onset of localized necking in the Marciniak …
this paper proposes a method of detecting the onset of localized necking in the Marciniak …
New approaches to detect the onset of localised necking in sheets under through-thickness strain gradients
AJ Martínez-Donaire, FJ García-Lomas, C Vallellano - Materials & Design, 2014 - Elsevier
Abstract The standard ISO 12004-2: 2008 provides a position-dependent methodology to
estimate the limit strains in Nakazima-and Marciniak-type tests. However, this method is not …
estimate the limit strains in Nakazima-and Marciniak-type tests. However, this method is not …
An improved curvature method of detecting the onset of localized necking in Marciniak tests and its extension to Nakazima tests
A method using surface curvatures to detect the onset of localized necking in forming limit
tests [Min J, Stoughton TB, Carsley JE, Lin J. A Method of Detecting the Onset of Localized …
tests [Min J, Stoughton TB, Carsley JE, Lin J. A Method of Detecting the Onset of Localized …
A new method for localized necking detection in uniaxial tensile testing based on a multi-camera DIC system
Understanding and predicting the onset and behavior of localized necking is important for
the design and optimization of structures and components. Capturing the onset of localized …
the design and optimization of structures and components. Capturing the onset of localized …
[HTML][HTML] A strain acceleration method to identify the onset of diffuse necking
This paper presents an innovative 'strain acceleration method'for determining the onset of
diffuse necking in sheet forming tests using data obtained from digital image correlation …
diffuse necking in sheet forming tests using data obtained from digital image correlation …
Determination of the forming-limit diagram from deformations within necking instability: a digital image correlation-based approach
A Roatta, M Stout, JW Signorelli - Journal of Materials Engineering and …, 2020 - Springer
It is now possible using digital-image correlation techniques to precisely measure
deformation within a developing necking instability, during forming-limit experiments …
deformation within a developing necking instability, during forming-limit experiments …
[HTML][HTML] Kinematic study of necking in a semi-crystalline polymer through 3D Digital Image Correlation
J Ye, S André, L Farge - International Journal of Solids and Structures, 2015 - Elsevier
This study is devoted to the necking phenomenon and to the kinematic aspects associated
with this plastic instability. The material studied is a High Density PolyEthylene deformed in …
with this plastic instability. The material studied is a High Density PolyEthylene deformed in …
Novel experimental method to determine the limit strain by means of thickness variation
In this work an experimental method to determine the limit strain by means of digital image
correlation is proposed. This method analyzes the variation of the thickness of a sheet metal …
correlation is proposed. This method analyzes the variation of the thickness of a sheet metal …
Tensile testing of metals: Relationship between macroscopic engineering data and hardening variables at the semi-local scale
G Mirone, P Verleysen, R Barbagallo - International Journal of Mechanical …, 2019 - Elsevier
The usual elastoplastic characterization of metals consists of determining the experimental
tensile true stress-true strain curve (true curve) and of correcting it for the post-necking …
tensile true stress-true strain curve (true curve) and of correcting it for the post-necking …
Determining localized necking in polycrystalline sheet metals using the bifurcation phenomenon in strain evolution
J He, Y Feng - Crystals, 2023 - mdpi.com
The forming limit is an important failure criterion for polycrystalline sheet metals when
approving the forming process. Recent developments in strain measurement technology, eg …
approving the forming process. Recent developments in strain measurement technology, eg …