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Selection of suitable constitutive models and erosion criterion for the failure analysis is investigated.
The modified model and erosion criterion were implemented in LS-DYNA with the user-defined material procedure.
With the erosion criterion of maximum principal strain implemented, the failure of the SFRC specimen in split Hopkinson pressure bar (SHPB) tests is finally simulated.
Numerical results show that the isotropic hardening plasticity mode and the erosion criterion are suitable for the analysis of the SFRC failure under medium strain-rate loading.
Sensitivity analysis of the proposed erosion criterion and tensile DIFt was carried out to investigate the stability of the modified model.
Two different approaches were considered for studying the energy-absorption properties of the cellular structures: with and without implementation of the erosion criterion for simulating material failure.
Similar(46)
The erosion criteria and hourglass control are applied to ensure the accuracy of numerical results, which are validated against the experimental data from open literature.
A material model for hybrid-fibre engineered cementitious composites (ECC) under impact loading is developed and calibrated in this paper, and size effect, appropriate erosion criteria and strain rate effect are investigated and accounted for in the model.
In their publication, a number of clinical images were included, presenting lesions clearly matching current erosion criteria.
The UK National Survey of Children's Dental Health Index was a modified version of the Smith and Knight TWI assessing only buccal or palatal surfaces of maxillary incisors and added erosion criteria.
The presence or absence of articular erosions, using standard clinical criteria, was documented by a radiologist at the treating hospital.
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