Abaqus Hashin damage model in 3D Continuum element using UMAT & VUMAT & USDFLD скачать в хорошем качестве

Abaqus Hashin damage model in 3D Continuum element using UMAT & VUMAT & USDFLD

The Subroutine Trio: USDFLD, UMAT & VUMAT Struggling to simulate composite material damage in Abaqus for 3D continuum elements? This video explores the Hashin damage model, a powerful tool for simulating damage progression in composite materials within Abaqus. We'll delve into the theory behind the model and showcase simulation results using user-defined subroutines (UDSs) – UMAT, VUMAT, and USDFLD. The Power of Hashin Damage Model: Hashin's failure criteria consider six distinct damage modes in composites: 🔴 Matrix Tensile Failure: Cracking or debonding within the matrix under tensile stress. 🔴 Matrix Compressive Failure: Crushing or yielding of the matrix under compressive stress. 🔴 Fiber Tensile Failure: Breaking of fibers due to tensile loads. 🔴 Fiber Compressive Failure: Crushing or buckling of fibers under compression. 🔴 Fiber-Matrix Shear-out: Failure at the interface between fibers and matrix under shear stress. 🔴 Delamination (Tension & Compression): Separation of composite plies due to loads perpendicular to the plies. UDSs for Tailored Damage Analysis: While Abaqus lacks a built-in damage model for 3D continuum composite elements, UDSs bridge the gap. This video focuses on three key subroutines: ✅ UMAT: Ideal for static and standard solver analyses. We'll explore how UMAT implements Hashin's criteria and tracks damage evolution during simulations. ✅ VUMAT: Expands your capabilities to dynamic analysis, non-linear problems, and convergence issues. See how VUMAT handles these complex scenarios. ✅ USDFLD: Optimizes property degradation after damage initiation. We'll demonstrate how USDFLD modifies material properties without affecting stiffness matrix calculations. Simulation Results & Verification: The video showcases simulation results for each subroutine under various loading conditions (tension/compression in fiber/matrix directions). These results are compared with baseline models using Abaqus' built-in Hashin damage for shell elements (the only built-in option). This comparison helps validate the accuracy of the UDF-based approach for 3D continuum elements. Beyond the Video: The full course includes in-depth coding tutorials for each subroutine and detailed walkthroughs of the simulation setup process. This comprehensive package equips you to confidently implement the Hashin damage model for advanced composite material analysis in Abaqus. Here is the link of the full package 📽: https://caeassistant.com/product/simu... Don't forget to like and subscribe for more in-depth Abaqus tutorials:    / @caeassistant