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Balsa wood fatigue simulation with Abaqus subroutine
This training package focus on writing subroutines to simulate wood fatigue in Abaqus. In the "Balsa wood fatigue simulation with subroutine" package, the used fatigue theory of wood has been described. Then, the flowchart of the subroutine and writing subroutine line-by-line is explained. It helps users to develop the subroutine based on customized theory. Finally, the subroutine is implemented on the Abaqus model, and the results are discussed.
Fatigue damage simulation of short fibre composites with subroutine
Fatigue failure in materials occurs when repetitive or fluctuating stresses, below the ultimate strength and often below the yield limit, lead to sudden and unpredictable failure, making it a significant concern in engineering due to its potential for catastrophic consequences. The reinforced part of the fiber-reinforced composites can be categorized as continuous or discontinuous, with the latter referred to as short fiber-reinforced composites. In this training package, the fatigue of short (chopped) fiber composites is explained. Two fatigue damage models are presented for short fiber composites: Nouri fatigue damage model and Avanzini fatigue damage model. The Nouri’s model is applicable for composites with orthotropic behavior. But the Avanzini’s model has considered the fiber distribution in the matrix to be homogeneous and random. It has assumed the material behavior to be isotropic. Also, Nouri's model was developed for strain-controlled test, but Avanzini's model was developed for stress-controlled test. In this tutorial, we use the Avanzini’s model, which is base on this article: “Fatigue behavior and cyclic damage of peek short fiber reinforced composites”. This article has implemented the USDFLD subroutine, but we use the UMAT subroutine, which is more accurate than USDFLD since the material strength and properties reduction is smooth. A standard test specimen is used in this simulation to model such behavior. You will learn the details in the package.
Simulation of woven composite fatigue in Abaqus
The training package focuses on simulating woven composite fatigue using Abaqus software and the modified Hashin fatigue damage model based on the article titled "Life prediction of woven CFRP structure subject to static and fatigue loading ". Woven composites have high strength and stiffness-to-weight ratios, but the interlacing pattern can affect stress distribution and damage mechanisms, making fatigue analysis crucial. The package includes four lessons covering different types of composite fatigue models, material characterization, generalization of the failure model, and the implementation of the UMAT subroutine. Two workshops provide hands-on experience in implementing the UMAT subroutine on one element in cyclic tension and a complex model. Fatigue analysis predicts material behavior under cyclic loading and helps design safe and reliable structures.
UMAT Subroutine (VUMAT Subroutine) in ABAQUS-Free Version- UMAT Abaqus example
This package includes the free version of the two following packages. The following packages include 11 workshops for writing different types of subroutines and give you instructions and points to write your own UMAT/VUMAT subroutine. Here, a UMAT Abaqus example is free to download.
"UMAT Subroutine (VUMAT Subroutine) introduction" is used when the material model is not available in ABAQUS software. If you follow this tutorial package, including standard and explicit solver, you will have the ability to write, debug and verify your subroutine based on customized material to use this in complex structures. These lectures are the introduction to writing advanced UMAT and VUMAT subroutines in hyperelastic Martials, Composites, and Metal, and so on. Watch Demo
"Advanced UMAT Subroutine (VUMAT Subroutine)" training package helps Abaqus users to prepare complex UMAT and VUMAT subroutines. This training package is suitable for those who are familiar with subroutine or want to learn UMAT/VUMAT subroutine Professionally. Equations for computational plasticity based on kinematic stiffness are also discussed. In addition, metal damage has been implemented based on Johnson Cook's model. Watch Demo
Simulation of SMA in Abaqus with UMAT
Shape-memory alloys (SMAs) have the ability to recover their original shape, thanks to the shape-memory effect and superelasticity. These unique characteristics have led to the broad usage of SMAs in engineering and medical applications. Simulations offer cost-effective methods for analyzing SMAs’ behavior, ultimately enhancing their reliability and performance. Consequently, researchers frequently employ simulations to investigate SMA-based systems. This educational package begins by exploring the fundamentals of SMA wires, presenting their various types and specific capabilities. It then provides the necessary constitutive equations to describe the behavior of SMAs in simulation. The package includes a flowchart and a step-by-step guide for writing a subroutine to model SMAs in Abaqus. Users will also discover a workshop that uses Abaqus to simulate the superelasticity effect in SMA wires. This workshop not only offers guidance on the simulation and the implementation of the subroutine, but also compares the result with an analytical solution for verification.
Simulation of composite Hashin damage in 3d continuum element in Abaqus (UMAT-VUMAT-USDFLD)
In this training package, the 3D continuum HASHIN damage initiation model is prepared via three subroutines (USDFLD, UMAT and VUMAT).This training package teach you subroutines line-by-line. It should be noted that after damage initiation, failure occurs suddenly and in the form of a reduction in properties in the model. The HASHIN theory for this package is based on Kermanidis article titled” FINITE ELEMENT MODELING OF DAMAGE ACCUMULATION IN BOLTED COMPOSITE JOINTS UNDER INCREMENTAL TENSILE LOADING “.
Python scripting in ABAQUS Part 2
This training package includes workshops that help you to learn about advanced Python scripting in Abaqus software. This is the most comprehensive tutorial containing advanced ways to write the Abaqus script. The subjects such as interrogation in output databases, Kernel plug-ins, RSG plug-ins, etc., are covered in this tutorial.
Lemaitre Damage model implementation with VUMAT Abaqus
The Lemaitre damage model is now widely used to deal with coupled damage analyses for
various mechanical applications.
In this package, Firstly, we try to introduce the Lemaitre damage model, including damage mechanics and formulation of the Lemaitre damage model. Then, writing the Lemaitre subroutine is reached step by step. To do this job, the flowchart of the subroutine, Writing the subroutine line by line, implementation of the subroutine in one element and verification is done. In the last chapter, we implement this subroutine in a complex problem, the upsetting process.
Python scripting in ABAQUS-(FREE Version)
This training package(free version) includes one of three and two of five workshops that help you to partially learn how to use Python scripting in Abaqus software. This is likewise the most comprehensive tutorial for the script, and it is appropriate for beginners to advanced users. The subjects such as parameterization, optimization, sequential running and etc. are covered in this tutorial.
To access the full version of this package, click here. It should be mentioned, that the free version of this package, it is not included software files and scripts.
Abaqus for beginners (Mechanical Engineering)-Free Version
In this Free version of the training package, which is designed for beginners in mechanical engineering, two lessons from the original package are presented. This package is provided the necessary points and theories for simulation. With this training package, you will be able to get acquainted with different ABAQUS modules in the form of various examples in modeling, how to get the output and the necessary results for reporting. You can download the syllabus of this package here. You also could find the demo of the package on our YouTube channel at this link.
Thermal Heat Transfer in Abaqus
This package is related to Thermal Analysis in Abaqus. This package helps Abaqus users to simulate professionally.
In general, Abaqus can solve the following types of heat transfer problems (For thermal and thermo-mechanical problems):
- Uncoupled heat transfer analysis
- Sequentially coupled thermal-stress analysis
- Fully coupled thermal-stress analysis
- Adiabatic analysis
Introduction to VUEL Subroutine in ABAQUS
VUEL is the UEL subroutine for the Explicit solver. UEL is for the Standard solver, and VUEL is for the Explicit solver. Of course, there are some other differences between these two subroutines as well, such as in inputs, variables, etc. This tutorial package is used for writing the most sophisticated subroutines in ABAQUS, VUEL, which are applicable to customized problems. The stiffness matrix and nodal forces are the output of the subroutine, which can be defined based on several variables. This tutorial package contains two workshops: the first is divided into three sections, which model truss elements, and the second workshop explains how to use VUEL and VUMAT subroutines in one model.
Composite simulation for experts-Part-1
If you are a graduate or Ph.D. student, if you are a university professor or an expert engineer in the industry who deals with simulation software, you are definitely familiar with the limitations of this software in defining the material properties, loading or meshing, interaction properties, and etc. You have certainly tried to define the properties of materials based on advanced fracture theories in finite element software and are familiar with their limitations and problems.
Now, here is your solution. Start writing subroutines in finite element software and overcome the limitations. With the tutorials in the Golden Package, you will learn how to write 8 subroutines in Abaqus software professionally.
Python scripting in ABAQUS Part1
This training package includes workshops that help you to learn how to use Python scripting in Abaqus software. This is likewise the most comprehensive tutorial for the script, and it is appropriate for beginners to advanced users. The subjects such as parameterization, optimization, sequential running and etc., are covered in this tutorial.
This Abaqus fatigue tutorial package includes workshops that teach you the XFEM method to simulate crack growth. This tutorial package enables you to model crack propagation in any 2D and 3D dimensional model. In addition, you will learn about the Paris law, direct cyclic approach, traction-separation law, and other theories that help you to simulate a crack growth problem in this package
Analysis of Heat Transfer in Abaqus
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Thermal Heat Transfer in Abaqus
This Analysis of Heat Transfer in Abaqus package includes workshops that help you to fully learn how to simulate the temperature distribution and heat flux in solids under thermal loads. This tutorial package enables you to model thermal responses including all the modes of heat transfer, namely conduction, convection and radiation. The subjects such as using film conditions to simulate the convective heat transfer, the dissipation of the frictional heat generated, thermomechanical analysis and etc. are covered in this package
As a professional Abaqus user, you have probably faced cases where you have to move meshes and elements during analysis. For example, there is such a need in the wearing process. In addition, to define the properties of materials based on advanced theories of elasticity or plasticity, you need programming within the software. Sometimes you may need to model different types of cohesive or many types of composite materials based on various methods of composite damage. In all these cases, be sure that the professional package will answer you. This package is designed and prepared for you who are professionals and work on the edge of knowledge topics in the field of mechanical engineering and damage mechanics.
Sometimes you may need to use user-defined elements and change element configuration based on theories that you are using; for instance, it is needed to add more integration points in elements. In this case, you can use the UEL package in the “Professional Package”.
💿Abaqus for Beginners (Abaqus for Civil Engineering)
In the present Abaqus tutorial for civil engineering package, we, "The CAE Assistant", have presented all the Abaqus basic skills that a civil engineer needs when he/she wants to use his/her engineering knowledge in computer-aided designing. Abaqus tutorial for civil engineering covers all your need to simulate concrete, reinforcements, buckling, frequency, damage, composite, cohesive and more topics related to Abaqus structural analysis tutorial. You can watch the demo video for more information.
If you are a graduate or Ph.D. student, if you are a university professor or an expert engineer in the industry who deals with simulation software, you are definitely familiar with the limitations of this software in defining the material properties, loading or meshing, interaction properties, and etc. You have certainly tried to define the properties of materials based on advanced fracture theories in finite element software and are familiar with their limitations and problems.
Now, here is your solution. Start writing subroutines in finite element software and overcome the limitations. With the tutorials in the Golden Package, you will learn how to write 8 subroutines in Abaqus software professionally.
If you need common industrial simulations in the fields of forming, fracture, explosion, impact, etc., this package can provide you with comprehensive training along with an instructional video file and software file. You can quickly meet your educational needs in learning the elementary and intermediate level of Abaqus software using this package.