This study introduces a novel method for analyzing residual stresses in composite materials: the Abaqus path-dependent curing model. The model is implemented within Abaqus CAE using Fortran subroutines like USDFLD, UMAT, HETVAL, UEXPAN, and DISP.

This project presents an innovative approach for examining residual stresses in composites: The Abaqus viscoelastic model for curing. The implementation of the model is carried out in Abaqus CAE, utilizing Fortran subroutines such as USDFLD, UMAT, HETVAL, UEXPAN, and DISP.

In this project, we simulated the fatigue behavior of a unidirectional composite material using the UMAT subroutine in Abaqus. The Abaqus .inp file, along with a portion of the UMAT subroutine, is attached. To access the video tutorial for this project and all the modeling files, visit the link below.

Hashin criteria predict failure modes in composites based on stresses in fiber and matrix. While effective, implementing them in numerical simulations poses challenges. Abaqus addresses this but is limited to 2D plane stress. A VUMAT subroutine extends Abaqus to simulate 3D damage progression using the energy method for static and dynamic problems.

The UMAT subroutine is a tool in Abaqus that can be used when a material cannot be adequately modeled using the Abaqus material library. In this project, we employed this subroutine to evaluate the Tsai-Hill failure criterion in composites. Additional projects in this field can also be accessed on the following link.

UEL refers to User-Defined Elements, which are used to implement element types not found in the Abaqus element library. This project assists in writing a UEL subroutine.

2-Pass Welding Simulation in Abaqus: In this project, we used Abaqus with the DFLUX subroutine to simulate2-pass welding, incorporating the birth and death of elements. This is a workshop of a package covering the simulation of multiple welding methods, presented in 3.5 hours of video. All files and videos are available through the provided link.

In this project, we simulated 3D printing, or additive manufacturing, in Abaqus CAE. Due to the complexity of the project, we used Python scripting for the simulation. Additionally, we utilized the DISP and USDFLD subroutines in Fortran Languages.

The VUMAT subroutine in Abaqus provides an effective approach for simulating materials that are not adequately captured by the standard Abaqus material library. In this study, we applied this subroutine to analyze a 3D isotropic isothermal beam. Further projects related to this domain can be explored at the link provided below.

In the project, we modeled welding in Abaqus using VDFLUX subroutine. VDFLUX subroutine is an Abaqus tool, designed for thermal loading in form of body/surface fluxes, as a function of time, coordinates, etc. We have a free blog on our website that delves into the details of DFLUX/VDFLUX subroutines. You can access it through the provided link

In this project, we have provided you with the Abaqus UMESHMOTION subroutine, written in Fortran, for the wear simulation.

In this project, we have provided Abaqus input files along with the VDISP and DISP Abaqus Fortran subroutines, developed to apply complex boundary conditions.

This research investigates the application of the Inherent Strain method in Abaqus, an effective numerical strategy for simulating Laser Powder Bed Fusion (LPBF) in metal additive manufacturing. For this purpose, we have implemented the DFLUX and USDFLD subroutines using Fortran.