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maxwell viscoelastic model

Simulation of the Generalized Maxwell Viscoelastic Model using UMAT Subroutine

€ 310.0

This research presents a precise three-dimensional mechanical response of viscoelastic materials, such as polymers and elastomers, using the generalized rheological Maxwell viscoelastic model (considering the five Maxwell elements). That is to say, we implement the Maxwell model of viscoelasticity using the UMAT subroutine for the Abaqus standard solver. To clarify, using the concepts in this tutorial, you can implement the model for any N-Maxwell elements, using the viscoelastic Maxwell model.

The Maxwell viscoelastic model is appropriate for qualitative and conceptual analysis, but the single Maxwell element is not sufficient to describe the behavior of elastomers and polymers. For a more precise definition of these materials, the generalized Maxwell viscoelastic model is used. In the generalized Maxwell viscoelastic model, N piece of Maxwell elements and a single spring (the Hooke-element) are assembled in parallel. This tutorial, by customizing the UMAT subroutine to simulate flexible samples behavior, contributes to the advancement of viscoelastic materials design and analysis.

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kelvin voigt model

Abaqus Kelvin Voigt Model (Viscoelastic) Simulation Using UMAT and VUMAT Subroutines

€ 270.0
(4)

This research presents a precise three-dimensional mechanical response of viscoelastic materials using Abaqus kelvin voigt viscoelastic model. We performed this kelvin voigt model Abaqus simulation using both UMAT and VUMAT subroutines for standard and explicit solvers.

The behavior of viscoelastic materials is a state between the behavior of a liquid and a solid. In other words, they behave both like liquids and solids. That is to say, there are many natural and synthetic materials that are classified as viscoelastic materials; From the biological structures of the body such as skin, cartilage and tissue to concrete, foams, rubbers, and synthetic polymers. Due to these unique properties, viscoelastic materials have many applications.

In this regard, the primary goals of this study include the development and implementation of an accurate three-dimensional Abaqus kelvin voigt viscoelastic model, and the integration of viscoelastic properties into the analysis, which can improve the prediction of viscoelastic materials response under different boundary and loading conditions.

This tutorial, by customizing the UMAT and VUMAT subroutines to simulate flexible samples behavior, contributes to the advancement of viscoelastic materials design and analysis.

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Implementation of Soil Constitutive Models in Abaqus | With a Special Focus on CSJ Models

€ 270.0

Constitutive model implemented in calculation code, play an important role in the material behaviors prediction. In the field of geotechnical engineering there are numerous soil constitutive models. By installing these models in a finite element code such as Abaqus, their development, efficiency and advancement can be increased. Also, more and more complex engineering problems can be solved by this method. But to do this, you need a proper understanding of the mathematical and programming basics of these models. This tutorial focuses on implementing advanced constitutive models in Abaqus, particularly for simulating soil behavior. Focusing on the CJS model, this tutorial tries to teach how to work and how to program these models in Abaqus code. It includes detailed explanations of VUMAT and UMAT subroutines and practical examples of implementing the CJS model.

Note: In this project, we have discussed the UMAT and VUMAT subroutines, their specifications, and features. You will become familiar with the implementation of both UMAT and VUMAT subroutines. However, the specific focus of this project, for which we have provided the necessary files and run the analysis, is on using the VUMAT model. If you need to use Abaqus for this project with the standard solver, you will need to write the UMAT subroutine yourself.

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Hershey Yield Surface

Modified Johnson Cook viscoplastic model with the Hershey yield surface | VUMAT Subroutine for 3D continuum elements

€ 240.0

This project offers a set of Abaqus models for 3D continuum elements, integrating a VUMAT subroutine that implements the Modified Johnson Cook (MJC) viscoplastic model and the Hershey yield surface. The MJC model simulates material behavior under varying strain rates and temperatures, while the Hershey yield surface predicts complex yielding behavior. Together, they provide highly accurate simulations of materials under extreme conditions such as impacts and high temperatures. Ideal for industries like automotive, aerospace, and defense, this package supports critical applications like crash testing, metal forming, and ballistic analysis. The model has been implemented for 3D continuum elements.

Note: The inp and Fortran files are only applicable in Linux.
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Simulation of shape control by piezoelectric in Abaqus

€ 290.0
(1)
Piezoelectricity refers to the accumulation of electric charge in certain solid materials due to mechanical pressure. This phenomenon, known as the piezoelectric effect, is reversible. Some materials exhibit direct piezoelectricity, which involves the internal production of electric charge through the application of mechanical force, while others exhibit the inverse piezoelectric effect. By harnessing piezoelectrics, it becomes possible to control the geometrical changes of objects in response to external forces. However, it is important to note that utilizing this property in all situations would not be cost-effective. Therefore, it is more practical to use piezoelectric structures selectively, specifically in special applications. One approach to determining the optimal placement of piezoelectric elements for controlling the geometric shape of various objects under internal or external forces involves utilizing the Abaqus and MATLAB software linkage. This software combination, along with optimization algorithms such as the particle swarm optimization algorithm, can be employed to achieve the desired objectives. By leveraging these tools and data, the primary goal of controlling object shape can be successfully accomplished. In this training package, you will learn about piezoelectric and piezoelectric modeling in Abaqus, the particle swarm optimization algorithm, linking Abaqus and MATLAB, and how to use these tools for shape control. Notice: Software files and A full PDF guideline (Problem description, theory, ...) are available; Videos are coming soon.
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Piezoelectric simulation in Abaqus

€ 185.0
(1)
Piezoelectric materials exhibit a unique property known as piezoelectricity, where they can generate electric charges when subjected to mechanical stress or deformation, and conversely, deform when an electric field is applied. This phenomenon arises from their crystal structure, enabling the conversion of mechanical energy into electrical energy and vice versa. Simulating piezoelectric materials is of great importance as it allows engineers to optimize the design and performance of devices and systems that utilize these materials. Through simulations, engineers can analyze factors like stress distribution, deformation, and electrical response, aiding in performance prediction and failure analysis. Simulations also enable the study of parameter sensitivity, understanding how changes in parameters impact piezoelectric devices. This information helps in making informed design decisions and optimizing the integration of piezoelectric components into larger systems. Furthermore, simulating piezoelectric materials reduces the need for physical prototypes, saving time and costs associated with experimental setups. It enhances the understanding and development of piezoelectric technology, facilitating its widespread application in various industries. In this training package, you will learn what is a piezoelectric, types of piezoelectric, piezoelectric applications, and how to simulate piezoelectrics in Abaqus.
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Modeling Functionally Graded Materials (FGMs) in ABAQUS

€ 180.0
Dive into the realm of innovative engineering with our comprehensive tutorial package, designed to empower you in modeling Functionally Graded Materials (FGM) using the Abaqus USDFLD subroutine. Uncover the fascinating world of FGMs, materials that ingeniously vary their composition and microstructure, offering a nuanced control over mechanical, thermal, and other properties. The workshop component takes you on an exploration of crack paths in Spherical Functionally Graded Materials, emphasizing simulation techniques using Abaqus Standard and the USDFLD subroutine. Uncover the secrets of stress distribution within a pressured, empty sphere, and enhance your skills by implementing the XFEM method for precise crack characterization. This training ensures you gain valuable insights into subroutine development, empowering materials engineers and designers to innovate and elevate the performance of structures across various industries. Embark on your journey to mastery with this all-encompassing tutorial package.
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Abaqus rock simulation

Rock simulation in Abaqus

€ 49.0
(2)
Rock simulation is essential for evaluating the behaviour of rock masses under various loading conditions, such as earthquakes, landslides, and blasting. It enables engineers and geologists to assess the stability and integrity of rock structures, predicts potential failure modes, and develop effective mitigation strategies. Rock simulation is crucial in the design and planning of mining operations, tunnels, and underground constructions to ensure the safety and longevity of the structures. It also plays a vital role in assessing the seismic hazard of an area and evaluating the potential impact of earthquakes on the built environment. In this package, you will learn how to do an impact simulation on a granite stone using the JH-2 model; also an explosion simulation inside a rock for excavation purposes. You can learn more detail in the description of the workshops.
 
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piezoelectric Abaqus simulation

Piezoelectric simulation in Abaqus

€ 29.0
(1)
Piezoelectric materials are unique materials that generate an electric charge in response to applied mechanical stress, such as pressure or vibration. They are used in a wide range of applications, including sensors, actuators, and energy harvesting devices. The piezoelectric analysis is the process of studying the mechanical and electrical behavior of piezoelectric materials under various loading conditions. It involves modeling and simulating the response of piezoelectric materials to external stimuli, such as electrical potential or mechanical stress. The importance of piezoelectric analysis lies in its ability to evaluate the performance and optimize the design of piezoelectric devices, which are becoming increasingly important in various industries, including medical, automotive, aerospace, and energy. Piezoelectric analysis can help improve the efficiency, accuracy, and durability of piezoelectric devices, leading to advancements in technology and innovation. In this package you will learn how to model piezoelectric materials in Abaqus.
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Abaqus Kinematic hardening

Hardening plasticity in Abaqus

€ 210.0
(13)
In this package, hardening plasticity in the Abaqus software using Abaqus material models or UMAT subroutine or UHARD subroutine is discussed. It should be mentioned using a subroutine to define hardening could be more professional and this package tries to familiarize users with these subroutines for hardening definitions. So, if you want to write these subroutines for your customized project in the hardening plasticity field, I recommend you the "UMAT Subroutine (VUMAT Subroutine) introduction" and "UHARD Subroutine (VUHARD Subroutine) in ABAQUS".  
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Abaqus Masonry wall simulation

Masonry wall Abaqus simulation

€ 109.0
The term masonry can refer to the construction materials brick, stone, etc. An assembly of masonry units, such as concrete blocks, burnt clay bricks, sundried bricks, stone bricks, and natural stones, linked together with mortar or grout is referred to as a masonry wall. It is important to know how these structures behave under different loading conditions, such as explosion, tension, earthquake, etc. to have the best design. In this package, you’ll learn all of that in four workshops: Behavior of a masonry wall under a couple Eulerian-Lagrangian explosion, micro modeling of a masonry wall, modeling of reinforced bricks masonry beams using GFRP reinforcement, earthquake simulation over masonry wall.
 
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Abaqus steel damage

Steel Damage types in Abaqus

€ 119.0
Steel materials are everywhere and used in almost every structure, from the building you live into the car you drive. Therefore, it’s essential to know the steel properties and behaviors when it’s under different loading conditions such as compression, tension, cyclic load, impact, etc. moreover, knowing the damage mechanism of steel structures helps to have better designing. In this tutorial package, you will learn how to analyze steel structures when they’re damaged with practical examples. There are five workshops here that could teach you the damage mechanism of steel structures: Simulation of bolt failure on the steal beam, reinforced concrete containment damage mechanism under internal explosion, tensile test of a steel specimen, impact on ceramic plate reinforced by steel plate, water jet cutting simulation.
 
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Johnson Cook Abaqus

Johnson Cook plasticity and damage simulation

€ 140.0
(11)
To drive new ideas, we occasionally need to modify the theory of Johnson-equations. Cook's As a result, we learn how to use the Abaqus model for Johnson Cook theory as well as how to create subroutines for this model in this training package. There are already two written subroutines. You will learn how to apply Johnson-Cook progressive damage in the second one after learning how to apply Johnson-Cook plasticity and damage initiation in the first.
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Abaqus Soil modeling

Abaqus Soil Modeling Full Tutorial

€ 280.0
(10)
All facets of soil modelling and simulation are covered in this full tutorial. The package includes twenty titles on topics such as soil, saturated soil, TBM, earthquake, tunnel, excavation, embankment construction, geocell reinforced soil, geosynthetic-reinforced soil retaining wall, soil consolidation in interaction with the concrete pile, earthquake over gravity dam, infinite element method, sequential construction, calculation of the total load capacity of the pile group, bearing capacity of the foundation. Package duration: +600 minutes  
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Abaqus steel material and structures Full Tutorial

€ 490.0
(3)
Here in this training package, numerous models of crack steel material structures modeling, such as the shear failure, FLD criterion and different metal damage theories in concrete, steel, dams, and bones are examined through ten step-by-step tutorials. Every tutorial includes all needed files and step-by-step English videos and is explained from A to Z.
 
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SMA abaqus

Simulation of SMA in Abaqus with UMAT

€ 320.0
(4)
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.
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