Some peculiarities in crack modelling under static and dynamic loading

Some peculiarities in crack modelling under static and dynamic loading

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The paper is focused on the crack growth in the manganese cast steel under static and dynamic loading. Crack extension is simulated by means of element extinction algorithms. Determination of micro-mechanical parameters is based on the combination of static tests, microscopic observation and numerical calibration procedures. The attention is paid on the influence of initial value of J-integral and the slope of R curve which is modelled by 3D FEM. Standard CT and SENB bodies were used for static tests and for dynamic tests Charpy body with V-notch. The commercial Abaqus software system, its explicit and implicit variant with a programmed user procedure, was verified by the WARP3D system.

The paper is focused on the crack growth in the manganese cast steel under static and dynamic loading. Crack extension is simulated by means of element extinction algorithms. Determination of micro-mechanical parameters is based on the combination of static tests, microscopic observation and numerical calibration procedures. The attention is paid on the influence of initial value of J-integral and the slope of R curve which is modelled by 3D FEM. Standard CT and SENB bodies were used for static tests and for dynamic tests Charpy body with V-notch. The commercial Abaqus software system, its explicit and implicit variant with a programmed user procedure, was verified by the WARP3D system.

crack growth; static loading; dynamic loading

crack growth; static loading; dynamic loading

KOZÁK, V.

2024

01.09.2023

American Institute of Physics

Melville (USA)

978-0-7354-4182-8

ICNAAM Proceedings

0094-243X

AIP conference proceedings

2849

1

Spojené státy americké

370005-1

370005-4

4

https://pubs.aip.org/aip/acp/article/2849/1/370005/2909210/