Western Pennsylvania ANSYS User's Group

Fall 2016 Meeting


Date:  Friday, October 21, 2016 from 9:00 am - 4:00 pm

Where: ANSYS Training Building in Southpointe
            250 Technology Drive, Canonsburg, PA 15317

[This is across the street, downhill from the previous ANSYS HQ building]

Exit off I-79 at Exit 48 (Southpointe/Hendersonville).
Turn into the Southpointe Complex on Southpointe Blvd. 
Follow Southpointe Blvd to Technology Drive, approx. 1 mile and at 3rd traffic signal, turn RIGHT on Technology Drive.

https://www.google.com/maps/place/250+Technology+Dr,+Canonsburg,+PA+15317/

TOPICS:  Modeling of Plastics & Rubber, ANSYS Application Customization Toolkit, Modeling of a Quenching Process, Additive Engineering

Agenda:

8:30 - 9:00 am Socialize: Bring your own coffee/water/snacks/etc. [Joe Yearsley, ANSYS Inc., is bringing donuts !!!]

Opening/Welcome from officers and host

9:00 am - noon "Testing, Modeling and Validation for Plastics & Rubber Simulation in ANSYS," by Hubert Lobo, and Brian Croop from DatapointLabs Technical Center for Materials

Plastics exhibit non-linear viscoelastic behavior followed by a combination of deviatoric and volumetric plastic deformation until failure. Capturing these phenomena correctly in simulation presents a challenge because of limitations in commonly used material models. We follow an approach where we outline the general behavioral phenomena, then prescribe material models for handling different phases of plastics deformation. Edge cases will then be covered to complete the picture. Topics to be addressed include: Using elasto-plasticity; When to use hyperelasticity; Brittle polymers filled plastics; Failure modes to consider; Criteria for survival; Choosing materials; Spatial non-isotropy from injection molding; Importance of residual stress; Visco-elastic and creep effects; Strain-rate effects for drop test and crash simulations; Fitting material data to FEA material models. The use of mid-stage validation as a tool to confirm the quality of simulation before use in real-life applications.

Topics:

  • Using elasto-plasticity;
  • When to use hyperelasticity;
  • Brittle polymers filled plastics;
  • Failure modes to consider;
  • Criteria for survival;
  • Choosing materials;
  • Spatial non-isotropy from injection molding;
  • Importance of residual stress;
  • Viscoelastic and creep effects;
  • Strain-rate effects for drop test and crash simulations;
  • Fitting material data to FEA material models; and
  • Using mid-stage validation as a tool to confirm the quality of simulation.

Presentations to view:

Hubert Lobo is founder of DatapointLabs Technical Center for Materials, and Brian Croop is the Laboratory Director. The two recently co-authored Determination and Use of Material Properties for Finite Element Analysis, describing the state of the art in material testing for CAE, which is now available from NAFEMS.org.

noon - 1:00pm    Discussion / LUNCH
Menu: Marinated and Grilled Chicken Tenders, Wild Rice Pilaf, Baked Ziti With Marinara Sauce, Roasted Vegetables, Tossed Salad With Dressings, Brownies, Assorted Soft Drinks
1:00 - 1:40 pm "The ANSYS Application Customization Toolkit (ACT)," by Mohamed Senousy, ANSYS Inc.

The ANSYS Application Customization Toolkit (ACT) is a package of tools that enables the end user to customize ANSYS tools. ACT provides the end user simple programming-level access to main components of the products (e.g., GUI, mesh, geometry, boundary conditions, etc.) in a Python programming environment. These specialized interfaces can simplify and standardize many actions. This session explains the basic functions and uses of ACT. It discusses implementation and provides examples.

1:40 - 2:00 pm BREAK
2:00 - 2:40 pm "Modeling of a Quenching Process," by Peiran Ding, ANSYS Inc.

The diffusional and martensitic phase transformation models and a multi-phase mechanical model have been implemented in the commercial heat treatment package ANSYS DANTE. In this development, DANTE is successfully linked with ANSYS user subroutines to predict the material responses during austenitization, carburization and quench hardening processes. A user friendly interface is developed in ANSYS WB to setup the heat treatment models. A 3D gear component made of carburized AISI 8620 is used to demonstrate the capability of the software, including the histories of phase transformations, in-process stress evolutions, residual stresses, and distortion.

2:40 - 3:20 pm "Additive Engineering," by Steve Pilz, ANSYS Inc.

In the Age of Additive Manufacturing, Who Does Design?

Additive Manufacturing has exploded recently in the media, but what is real, and what is hype?
Is the technology limited to plastic parts, or are viable metal solutions available today?
Who stands to gain the most from this disruptive technology, and how should one go about exploiting the incredible design freedoms that Additive Manufacturing enable?
Finally, what is ANSYS doing in the area to get it's users ready for this new manufacturing reality?

For Steve's presentation: click here  (2.0 MB)

3:30 pm Adjournment

Cost and Registration:

$22.00 per meeting.  The meeting fee MUST be paid in advance using this website (Eventbrite).

Reservations must be made by October 17, 2016.  After that date, the Eventbrite site will close for this meeting.

Cancellation:  If you find you must cancel your registration, Eventbrite will have the ability to process such requests.

Treasurer: Nicole Skias, Eriez Manufacturing (814) 835-6311  nskias@eriez.com

Chairman: Dave Johnson, Penn State Erie   (814) 898-6480   psuprofdj@psu.edu