Quantcast
Channel: John Doyle – ANSYS
Browsing latest articles
Browse All 19 View Live

What Are the Differences Between the Contact Formulations?

When choosing a formulation to be used in a contact region, you basically decide the mathematical method that the code will use to enforce the contact compatibility condition (for example, no...

View Article


Image may be NSFW.
Clik here to view.

Normal Lagrange Contact Formulation and When to Use It

There is a complex contact relationship between the roots of a turbine blade and the corresponding rotor. For applications that involve tight radial tolerances and accumulated layers of multiple...

View Article


Image may be NSFW.
Clik here to view.

Structural Relaxation Due to Creep Impacts Performance

Consider the impact of structural relaxation Many engineering structures must be designed to operate successfully in hostile thermal environments. Pipe hangers supporting hot and heavy steam lines,...

View Article

Image may be NSFW.
Clik here to view.

Convergence Failure of a Nonlinear Solution

My nonlinear model will not converge. Where do I begin? There are many different reasons for convergence failure of a nonlinear solution. While the causes and fixes may vary widely from one model to...

View Article

Image may be NSFW.
Clik here to view.

What Causes Element Formulation Errors in Nonlinear Structural Runs?

When the ANSYS structural code issues an element formulation error in the solver output, it is basically reporting that there has been a mathematical breakdown in the computation of the deformed...

View Article


Image may be NSFW.
Clik here to view.

Tips and Tricks for Dealing with Element Formulation Errors in WB-Mechanical

Is an element formulation error ruining your day? Add in a command object with ‘NLDIAG,eflg,on’  in the Structural Environment branch to execute as part of a restart after convergence failure. From the...

View Article

Image may be NSFW.
Clik here to view.

How to Keep a Balanced Life…and a Balanced FEA Model

The key to a balanced life is clean living. There are some simple rules to live by. Always tell the truth, even if it makes you look bad. Don’t spend more than 10 dollars for every 10 dollars that you...

View Article

Image may be NSFW.
Clik here to view.

Understanding Contact Reaction Probes in ANSYS Mechanical

There are three methods available for extracting the reaction forces across a contact region in WB-Mechanical: Contact(Underlying Element) Contact (Contact Element) Target (Underlying Element) When you...

View Article


Image may be NSFW.
Clik here to view.

What’s New with Contact Technology in ANSYS 15.0?

Contact 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...

View Article


Image may be NSFW.
Clik here to view.

What is Mesh Nonlinear Adaptivity?

Many FEA applications can benefit from the ability to strategically modify a mesh during solution, in order to simulate challenging geometry distortions which otherwise cannot be solved. Unlike manual...

View Article
Browsing latest articles
Browse All 19 View Live


Latest Images