ANSYS ICEM CFD Multizone

mz_submapper_aniHave you ever wanted to break up a model in multiple different zones and then mesh each with the best method possible? What if that could be done automatically?  And of course, all the zones should be mesh-conformal, and all the mesh should be high quality. That is what ANSYS multizone meshing is for. This post is to explain a bit more about how it works and I also included a rough little video about how to use it inside the ANSYS ICEM CFD meshing tool. Continue reading

ANSYS User-Generated Videos You Should Check Out!

Whether you are an experienced user or beginning with our tools, or even looking to know what ANSYS tools can do for you, you can benefit from great videos that are available on YouTube. I am amazed at the quality of some of these user-generated videos. Looking back at my playlist from last year, I can give you a short list to start with. Continue reading

ANSYS nCode DesignLife Load Mapping

In a previous blog, I discussed how the “5-box trick” can be used to visually represent the steps in an ANSYS nCode DesignLife fatigue simulation. In this blog I will discuss the “Load Mapping” box in more detail.

image of 5-box trick load mapping

5-Box Trick

FE analyses provide stress/strain results at distinct times or frequencies, but fatigue damage is caused by fluctuating stresses/strains. To assess fatigue damage, various load mapping techniques are used to convert the FE results into stress/strain histories and calculate the stress/strain ranges produced by those histories. Continue reading

FEA Simplifies the Design of Complex Composite Structures

When I first got introduced to composites as a student (many years ago!), I remember having felt amazed at how powerful yet complex materials they are. In a recent interview published in Composites in Manufacturing, my colleague Marc Wintermantel expressed the challenge of designing composites products very nicely: “When a designer uses simulation software to define composite part points in space they have a tremendous amount of additional design options and parameters to deal with.[…] These options are so large that you need to depend on optimized simulation tools because the computations go way beyond most people’s abilities to perform these tasks by hand”. And indeed, how can an engineer figure out what the optimum stackup is for a given applications with so many possibilities for fabrics thicknesses, orientations or location choices? Steel or aluminum are much easier to deal with! Continue reading

Simplifying Fatigue Analysis

iStock_failed wind turbineOne way to measure the effectiveness of engineering software is the amount of time it takes to reach a sufficiently accurate solution. Simulations by definition are an approximation of reality. Those who solve complex problems— using structural, fatigue analysis, CFD, electronics —  know that we have to pay for more accuracy with additional work and/or longer computing time.

Best in class software enables the user to capture the majority of work done, so it need not be repeated again and again, after all repetition is best done by computers. In this blog we will focus on fatigue simulation, which at first glance can be daunting to new users. There are several different solution methods that can be used with numerous additional correction factors available in most durability programs. There is a “best” combination of methods for most types of problems, which can be guided by experience and expertise. The ability to encapsulate the most appropriate method in a “fatigue workflow” as implemented in ANSYS nCode DesignLife is a major labor saving feature. Continue reading

What’s New with Contact Technology in ANSYS 15.0?

contact technology ansys 15Contact technology is used extensively throughout ANSYS Mechanical and Mechanical APDL to enforce compatible behavior between different portions within a model. With each Release, ANSYS continues to improve the breadth and robustness of our contact technology.  In ANSYS 15.0, we have enhanced contact still further to help users build models more efficiently without compromising on robustness.

Trim Contact, first introduced in ANSYS 14.5, is a great tool for reducing the number of unnecessary contact and target elements in large assemblies. In ANSYS 15.0, we have changed the default to activate trim contact even for application involving large deflection.

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Workbench CAD Readers for ANSYS ICEM CFD Meshing

ANSYS ICEM CFD has been using the Workbench CAD readers for a few years now, and for those of you using ICEM CFD in Workbench, it is drag and drop simple. But many of our stand alone ANSYS ICEM CFD users are not really aware of this functionality, so here is a blog about it.

ANSYS ICEM CFD import

In previous versions, we had the Workbench readers under “File => Workbench Readers”. The Workbench readers really supersede the old ANSYS ICEM CFD readers. They are up-to-date, easy to use, and offer connections such as JT Open and SpaceClaim that ICEM CFD never supported on its own. Talking to users, we found that many thought the Workbench readers option would only work inside Workbench or if they installed Workbench. To make the option more obvious, we moved the Workbench readers to the top of the list and renamed it “Import Model.”

Why “Import Model” instead of “Import Geometry”? Because the Workbench readers also support mesh formats! You can even select a *.wbpj and get both the geometry and mesh. During the import process, you can filter to make it easier to find the files that you are looking for. For instance, you can switch it to SpaceClaim to filter for SpaceClaim documents. Select your particular file (some formats will show you a preview of it), and click Open. Continue reading

ACT Templates for ANSYS DesignXplorer

Application Customization Templates - ACT

Are you familiar with ANSYS ACT (Application Customization Templates)? ACT allows all sorts of great customization. You could use ACT to encapsulate APDL scripts, add new loads and boundary conditions, create custom results, or even integrate third party tools. For instance, Vanderplaats R&D  just integrated their topology optimization product into ANSYS Mechancial via ACT.

The ACT Toolkit requires a license to develop extensions, but not to use extensions created by others or provided in our ACT library. Continue reading