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Aplication Johnson - Cook model in simulation of Charpy impact test
Charpy impact test is widely used as a reliable method for brittle fracture characterization of steel materials under high loading rates. In these days, numerical/analytical analysis of studied phenomenon as a valuable information to experimental res...
JL - Únava materiálu a lomová mechanika
- 2007 •
- D
Rok uplatnění
D - Stať ve sborníku
Determination of the Johnson-Cook Material Model of EN AW 6061-T6511 with evaluation for grooving machining
. The constitutive Johnson-Cook material model regarding strain and strain rate to predict material plasticity and chip separation is used. The model was determined basedThis paper deals with modelling of ...
Mechanical engineering
- 2022 •
- O
Rok uplatnění
O - Ostatní výsledky
The Simulation of impact test on R7T steel
Charpy impact is dynamic experiment that we detect material behaviour under high loading rates. Charpy impact test is used as method for brittle farcture characterization. In this work material model based on Johnson ? Cook...
JL - Únava materiálu a lomová mechanika
- 2009 •
- D
Rok uplatnění
D - Stať ve sborníku
Bearing race and roller line contact analysis in 2D
Bearing race and roller contact analysis was performed. Comparison of Hertz analytical with fem elasto-plastic solution gives very similar results of contact pressure profile and sub-surface stress development in elastic domain. When material yield o...
JR - Ostatní strojírenství
- 2016 •
- D •
- Link
Rok uplatnění
D - Stať ve sborníku
Výsledek na webu
Plastic deformation at high strain rates
The practical constitutive model which, can describe strain-rate history dependencies of flow stress. The proposed model is characterized by the use of Johnson-Cook equation for flow stress-plastic strain relations...
JG - Hutnictví, kovové materiály
- 1999 •
- D
Rok uplatnění
D - Stať ve sborníku
MEASUREMENT OF MECHANICAL PROPERTIES OF ALUMINUM ALLOY IN HIGH STRAIN RATE
for three strain rates were set Johnson-Cook material model for FEM analyses. With the use of the material model and Ansys Explicit software, were simulated Split......
Mechanical engineering
- 2023 •
- D •
- Link
Rok uplatnění
D - Stať ve sborníku
Výsledek na webu
COMPARISON OF MEASUREMENT OF ALUMINIUM ALLOY IN HIGH STRAIN RATE
lengths of specimen. Based on measured data, constants of Johnson-Cook material model...
Mechanical engineering
- 2023 •
- JSC •
- Link
Rok uplatnění
JSC - Článek v periodiku v databázi SCOPUS
Výsledek na webu
Identification of parameters of ductile fracture models
Effectve plastic response calibration is discussed in the paper. The plastic curve is calibrated as a base of damage mechanics model of ductile fracture. Calibration is based on evaluation of numerical simulations of tensile tests....
JG - Hutnictví, kovové materiály
- 2012 •
- O
Rok uplatnění
O - Ostatní výsledky
Charpy V-notch impact test: Modelling and Experiment.
This paper describes dynamic modelling of V-notch Charpy specimen during pendulum impact test using the explicit program LS-Dyna.The elastoplastic behaviour was described by Johnson-Cook model and compared with exp...
JL - Únava materiálu a lomová mechanika
- 2001 •
- D
Rok uplatnění
D - Stať ve sborníku
Determination of Johnson-Cook equation parameters
the parameters of Johnson-Cook equation were determined to obtain the best possible agreement...
JG - Hutnictví, kovové materiály
- 2012 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
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