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DLOAD and VDLOAD Subroutines
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HomeSubroutine DLOAD Subroutine and VDLOAD Subroutine in ABAQUS
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DLOAD Subroutine and VDLOAD Subroutine in ABAQUS

Rated 4.67 out of 5 based on 3 customer ratings
(3 customer reviews)

€ 120,00

This training package helps Abaqus users to prepare complex DLoad and VDLoad subroutines. With the help of these workshops, you can get acquainted with the basic and comprehensive way of DLoad and VLoad subroutine writing and their applications. By viewing this package as an engineer, you can do basic projects with complex loads.

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Categories: Civil Engineering, Forming, Mechanical Enginerring, Subroutine Tags: ABAQUS, ABAQUS TUTORILAS, DLOAD, FEA SIMULATION, SUBROUTINE, VDLOAD
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  • Reviews (3)
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Description

DLOAD Subroutine and VDLOAD Subroutine in ABAQUS

Generally, one of the most important parts of a simulation is how to load on the model. VDLoad and Dload subroutine allow us to define and add more complex loads than the Abaqus software default options. Here we will teach you in the form of 5 workshops to get acquainted with commonly used examples. In each workshop, we try to teach other unique options of Abaqus software, in addition to a step-by-step tutorial on subroutine writing.

We use VDLoad and DLoad subroutine in Abaqus software to define non-uniform and complex loads. In this training package, we try to teach you how to use subroutine blocks, how to define variables and parameters, and how to write the desired loading formulation in these subroutines. For example, loads whose distribution depends on place or time, these subroutines allow us to define the load in the software and assign it to the model. In fact, VDLoad and DLoad subroutines define loading as a function of location, time, element number, or layer number. For more information, use these websites.

https://abaqus-docs.mit.edu/2017/English/SIMACAESUBRefMap/simasub-c-vdload.htm

https://abaqus-docs.mit.edu/2017/English/SIMACAEKEYRefMap/simakey-r-dload.htm

Workshop 1: Composite shell structure in cylindrical bending with Sine loading

Firstly, in the first workshop, we simulate a composite beam under sinusoidal loading. This sine load depends on the location of the load. Due to the composite nature of the material, mechanical properties such as Young’s modulus are given in different directions. Our solver type is General Static or Abaqus Standard.

Workshop 2:  Damage analysis of Explosion loading on the steel plate

Explicitly, explosive loading is considered a complex type of loading. In the form of an example, by modeling a square sheet, we simulate this type of loading with the help of DLoad Subroutine. This explosive load is the product of two functions. One of two functions is dependent on time and the other one is dependent on location. We also teach how to consider ductile and shear damage to the material. Our solver in this workshop is dynamic explicit. An article about this workshop is also available to you. To see this article, click on this link.

https://core.ac.uk/download/pdf/82003699.pdf

Workshop 3: applied load on Semi-spherical body in the water at different heights

Archimedean force is a force exerted by a fluid on an object immersed in it in the opposite direction of the force of gravity and dependent on the mass of the body. Here we simulate this force in Abaqus software with DLoad Subroutine. To do this, we use the modeling of an incomplete bullet. The solver of this simulation is dynamic explicit type. Finally, we point out the difference between this simulation in software and in real conditions.

Workshop 4: Simulation of Hydroforming with Advanced functional fluid pressure load

To define fluid pressure in Deep Drawing simulation in Abaqus software, it is necessary to use the VDload subroutine. The governing equation for defining pressure depends on the instantaneous radius of the sheet. In this workshop, you will also get acquainted with Smooth Amplitude. This option is used to define the displacement of a part without creating a dynamic state in problem-solving. Finally, we compare the simulation results with and without fluid pressure and subroutine writing.

Workshop 5: Simulation of the effect of vehicle loading on the bridge

In the last workshop of this package, we simulated the movement of a car on a metal bridge. To simulate this loading in Abaqus software, we use DLoad Subroutine. This force depends on the place and time due to the constant speed of the car. Our solver in this simulation is a dynamic implicit type.

Preview

  • From this package, we learn
  • Teaching Plan (Prerequisites, Next step)
  • This Package included

Introduction

  • When do we need to use the subroutine?
  • How to use DLOAD and VDLOAD Subroutines?
  • What is the difference between DLOAD and VDLOAD Subroutines?
  • How to convert DLOAD to VDLOAD and vice versa?

Workshop 1: Composite shell structure in cylindrical bending with Sine loading

  • How to draw the model in the software and make the settings related to this simulation?
  • How to use related articles to write Dload subroutine?
  • How to write the subroutine line by line?

Workshop 2: Damage analysis of Explosion loading on the steel plate

  • What kind of the explosive load is used?
  • How to write the subroutine line by line?
  • How to write multivariate equations with the help of subroutine?
  • How to consider ductile and shear damage data for a specific material?

Workshop 3: applied load on Semi-spherical body in water in different heights

  • How to draw the model in the software and make the settings related to this simulation?
  • What is Archimedean force and what are its equations?
  • What is the difference between the results of this simulation and the actual test?

Workshop 4: Simulation of Hydroforming with Advanced functional fluid pressure load

  • What is Deep Drawing and what are the governing equations?
  • How to simulate fluid pressure with the help of VDload subroutine?
  • What is the effect of fluid pressure on the simulation results?

Workshop 5: Simulation of the effect of vehicle loading on the bridge

  • What is the weight equation of the car that moves at a constant speed?
  • How to implement the relationship between time and force on the bridge in subroutine?
  • What will be the results of this simulation?
Additional information
Included

.cae, .for, .inp, .jnl, .odb

Tutorial video duration

120 Minutes

language

English

Level

Advanced

Package Type

Training

Software version

ABAQUS 6.12

Subtitle

English

Reviews (3)

3 reviews for DLOAD Subroutine and VDLOAD Subroutine in ABAQUS

  1. Rated 5 out of 5

    cheng uangli – July 28, 2021

    This package is straight to the point, clear, and easy to understand. Watching this training package is enjoyable.

  2. Rated 4 out of 5

    Amanda Diaz – August 1, 2021

    it is such a wonderful training package and update topics. thanks!!!!!!!!!!!!!!

  3. Rated 5 out of 5

    Paula Abarca – August 1, 2021

    I was already well acquainted with the subroutine before starting the course, so I expected little from him. However, these lessons pleasantly surprised me: everything was very clear and consistent, all tests and assignments allowed me to consolidate the material I received, without unnecessary problems. As a result, I was able to remember a lot of basic things that were forgotten over many years of work, and also got acquainted with some of the functions that appeared in the latest versions of the Sub.

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