Johnson Cook model: Abaqus plasticity and damage simulation

CAE Assistant
CAE Assistant
136 بار بازدید - 2 ماه پیش - This video focuses on the
This video focuses on the theoretical aspects of the JC model and showcases the application of Abaqus subroutines.
The JC model is a phenomenological flow stress model that considers:
⚡Sheet Temperature: How material properties change with temperature.
⚡Strain-Induced Strain Hardening: The material's increasing resistance to deformation as it strains.
⚡Punch Strain Rate: The effect of loading speed on material behavior.
This versatility makes JC a popular choice for modeling diverse materials across various temperatures and strain rates.

Built-in Abaqus Capabilities:
⚡Johnson-Cook Plasticity: Simulating the material's hardening behavior.
⚡Johnson-Cook Damage Initiation: Predicting the onset of damage in the material.
⚡Johnson-Cook Progressive Damage: Modeling the growth of damage throughout the simulation.

While Abaqus offers built-in JC options, subroutines empower you to tailor the model further. The video introduces two user-defined functions (UDF) written in VUMAT:

✅VUMAT for JC Plasticity & Damage Initiation: This subroutine allows you to modify the plasticity and damage initiation equations for specific needs.
✅VUMAT for JC Progressive Damage: This UDF enables you to customize the equations governing damage evolution within the material.

For those interested in the complete coding tutorials and detailed simulation setup process, the full course is available as a separate product.
The full course: https://caeassistant.com/product/john...
2 ماه پیش در تاریخ 1403/03/01 منتشر شده است.
136 بـار بازدید شده
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