Numerical simulation and validation of damage in AA1100 aluminum symmetric Taylor impact (ROR)

Impact velocities for incipient and developed damage condition for AA1000-O aluminum alloy in symmetric Taylor impact tests (rod-on-rod, ROR) were predicted by means of numerical simulation. The material plastic flow was modelled using a modified version of the Rusinek-Klepaczko model and damage cal...

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Bibliographic Details
Main Authors: Bonora, Nicola, Bourne, Neil K., Garcea, Serafina C., Ruggiero, Andrew, Iannitti, Gianluca, Gentile, Domenico, Testa, Gabriel
Format: Conference Proceeding
Language:English
Subjects:
Aluminum
Aluminum base alloys
Computed tomography
Computer simulation
Continuum damage mechanics
Damage detection
Impact damage
Impact tests
Mathematical models
Numerical prediction
Parameter identification
Plastic flow
Pressure effects
Spatial distribution
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Summary:Impact velocities for incipient and developed damage condition for AA1000-O aluminum alloy in symmetric Taylor impact tests (rod-on-rod, ROR) were predicted by means of numerical simulation. The material plastic flow was modelled using a modified version of the Rusinek-Klepaczko model and damage calculations were carried out using a continuum damage mechanics (CDM) model extended to account for pressure effect on damage parameters. Model parameters have been identified based on traction test results. Numerical simulations of ROR, also considering the statistic variation on the damage parameters, were carried out to predict damage development and spatial distribution at different impact velocities. These results have been validated comparing with 3D maps of nucleated voids obtained with X-ray CT scan.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.5044815