Results 11 to 20 of about 3,600 (293)

STUDY ON DUCTILE FRACTURE CRITERION PARAMETERS OF HIGH STRENGTH DUPLEX STEEL PLATE

open access: yesJixie qiangdu, 2023
In order to predict the ductile fracture failure of different high-strength steel plates, the damage parameters of the ductile fracture criterion were calibrated by designing the tensile, shear and fracture failure tests of four high-strength steel ...
MA ChunHui   +5 more
doaj   +2 more sources

Orthotropic ductile fracture criterion based on linear transformation

open access: yesJournal of Physics: Conference Series, 2017
Accurate modelling of orthotropic ductile fracture is key to carry out reliable numerical prediction of rupture in plastic deformation of lightweight metals, such as ultra high strength steel, aluminum alloys, titanium alloys and magnesium alloys. Experiments are conducted for an aluminum alloy in shear, uniaxial tension, plane strain tension along the
J W Yoon, S Zhang, T B Stoughton
core   +3 more sources

A ductile fracture criterion with Zener-Hollomon parameter of pure molybdenum sheet in thermal forming

open access: yesMATEC Web of Conferences, 2015
Formability of pure molybdenum in thermal forming process has been greatly improved, but it is still hard to avoid the generation of rupture and other quality defects.
Wang Chu   +3 more
doaj   +2 more sources

A criterion for dynamic ductile fracture initiation of tensile mode [PDF]

open access: yesContinuum Mechanics and Thermodynamics, 2021
Dynamic behavior of a material is essential in applications such as collision, explosion, ballistic impact, high speed machining, and metal forming. As impact loadings, as well as accidental or malicious explosions may impose high loading rates to engineering structures, estimating the dynamic response of a material accurately is crucial. Therefore, an
Akçay, Fuzuli Ağrı, Oterkus, Erkan
openaire   +5 more sources

Experimental characterization and numerical modeling of micromechanical damage under different stress states [PDF]

open access: yes, 2013
The use of HSLA steels for the manufacture of automotive components is interesting from an engineering point of view. This family of steels, while possessing high strength, also has good formability and can be used in forming manufacturing processes.
GERMAIN, Guénaël   +3 more
core   +2 more sources

Uncoupled ductile fracture criterion and its application in aeronautical metallic materials

open access: yesJournal of Aeronautical Materials, 2021
Structural lightweight is an important development trend in aerospace and automotive fields, and the demand for lightweight metal materials represented by aluminum alloy, magnesium alloy, and titanium alloy is increasing continuously.
MA Hongyue   +4 more
doaj   +1 more source

A New Model for Void Coalescence by Internal Necking [PDF]

open access: yes, 2010
A micromechanical model for predicting the strain increment required to bring a damaged material element from the onset of void coalescence up to final fracture is developed based on simple kinematics arguments.
Onck, P. R.   +8 more
core   +2 more sources

A Method for Determining the Workability Diagram by Varying Friction Conditions in the Upsetting of a Cylinder between Flat Dies

open access: yesCrystals, 2021
This paper aims to develop a method for determining the workability diagram by varying frictional conditions in the cylinder upsetting test. The method is based on a known theoretical relationship between the average stress triaxiality ratio and in ...
Dejan Movrin   +4 more
doaj   +1 more source

Failure analysis based on microvoid growth for sheet metal during uniaxial and biaxial tensile tests [PDF]

open access: yes, 2013
The aim of the presented investigations is to perform an analysis of fracture and instability during simple and complex load testing by addressing the influence of ductile damage evolution in necking processes.
Abbassi, Fethi   +2 more
core   +2 more sources

Effect of Ductile Damage Evolution in Sheet Metal Forming: Experimental and Numerical Investigations [PDF]

open access: yes, 2010
The numerical simulation based on the Finite Element Method (FEM) is widely used in academic institutes and in the industry. It is a useful tool to predict many phenomena present in the classical manufacturing forming processes such as necking, fracture,
Sébastien Mistou   +9 more
core   +2 more sources

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