A fundamental question for each finite element problem is the type of solver to use: implicit or explicit? The solver type influences the set of equations that are solved, the availability of certain features, the run time and even whether a solution is obtained. It is therefore important. In this blog I’ll explain the difference between the two solvers available in Abaqus, their advantages and disadvantages, and when to choose which. I'll end with a simple example to illustrate the points made.
We’ve noticed that not everyone is familiar with the different ways in which we can help you if you have a simulation challenge. In this blog post, I want to go through the different options, explain what they are, for who they are available, and how to request this type of help.
On Friday the 26th or October, Simuleon and Elastomer Research Testing (ERT) are hosting the free hands-on workshop ‘From testing to Finite Element Analysis for Rubbers with Abaqus ’. In this unique co-hosted event Simuleon will present their solutions based on the SIMULIA portfolio and ERT will present their Rubber testing capabilities to gain material specifications for usage with SIMULIA Abaqus FEA.
Starting with a lecture session covering the essential concepts of advanced simulation for Rubbers, the course also gives the attendees the opportunity with our hands-on workshop, to model advanced phenomena such as non-linear elastic behaviour & material calibration, in-compressibility, element selection, shrink-fit & pressure penetration and other highly complex events with SIMULIA Abaqus.
In the previous webinar on civil engineering and Abaqus, we covered the basic topics in modelling buildings and infrastructures. First we introduced the principal material models used in this field, with a focus on the Concrete Damaged Plasticity model. Structural elements – in particular beam and shell elements – have been described in detail, presenting several special applications and the construction of the model of a steel framed building. Also, a detailed description of different techniques used to model reinforced-concrete were described.
In this second part of the webinar we will focus on some specific applications. Common techniques to model pre and post tensioned tendons will be presented. Examples include a prestressed RC beam, a post-tensioned concrete slab and a post-tensioned reinforced concrete nuclear containment vessel.
In this months upcoming webinar, we will look at the capabilities for Multi-Scale Modelling with Abaqus FEA and we will cover the techniques recently implemented in Abaqus for multi-scale modelling. It will take place on Friday the 29th June.
Two new methods are available in Abaqus to couple analyses performed at different scales: mean field homogenisation (MFH) and FE-based Representative Volume Element (RVE).
The objective is to predict the mechanical response of a structure using data from a smaller scale. These methods are particularly useful when studying complex materials or structures such as composite materials or lattice structures.
This months webinar will look at the capabilities of connector elements within Abaqus and how they can be used to simulate mechanisms with complex mechanical behaviours.
In April's upcoming webinar, we will look at the topics related to analysing and assessing Bolted Joints using Abaqus FEA.
Assessments of bolted joints can be performed for a number of reasons. Before starting any FE modelling of bolted joints it is important that the analyst considers the purpose of the analysis and plans it. A summary of typical aspects which should be considered during the planning will be covered.
In March's upcoming webinar, we will cover topics related to achieving a good quality mesh using the tools available in Abaqus CAE. Achieving a mesh of the required quality is a fundamental requirement to successful Finite Element Analysis.
In February's upcoming webinar, we will look at the Abaqus capabilities for modelling Civil Engineering.
Accurate structural analysis are needed to ensure the safety of buildings and infrastructures. The analysis can be static, for example to evaluate the strength of a RC structural connection or the displacements in a steel frame.
Dynamic and modal analysis are commonly used for seismic analysis, to predict the structural response to wind loading or to evaluate the vibrations induced by moving loads. Often the nonlinear behaviour must be considered, for example in case of large displacements or in case of damaged concrete.
Extreme loading scenarios must be analysed for particular structures: blast loading, progressive collapse analysis for tall buildings or impact simulations of containment structures. Abaqus, with its nonlinear analysis capabilities, wide range of material models and analysis procedures, provides a valid solution for all this kind of structural problems.
In the upcoming January webinar, we will look at the capabilities of Abaqus, with a focus on vibrations and Acoustics to understand noise and deminish its effects