STKO ASDEA

28/05/2026

Didn’t have time to register? Don’t worry we have got you covered!

You can watch the webinar “𝗗𝗼𝗻’𝘁 𝗷𝘂𝘀𝘁 𝗰𝗼𝗻𝗻𝗲𝗰𝘁 - 𝗶𝗻𝘁𝗲𝗿𝗮𝗰𝘁.'' on our YouTube channel by clicking on the link: https://youtube.com/live/qRfsUaDz8xE

This webinar focuses on a part of modeling that is often treated as “just constraints”, until it becomes the source of instability, unexpected stiffness, or ...

28/05/2026

One hour left make sure to join!
Click the link to Register:https://www.stko.net/webinar-registration

𝗗𝗼𝗻’𝘁 𝗷𝘂𝘀𝘁 𝗰𝗼𝗻𝗻𝗲𝗰𝘁 - 𝗶𝗻𝘁𝗲𝗿𝗮𝗰𝘁
🗓️ 28 May 2026 – 18:00 (CEST - UTC+2)
📍 Live on Zoom
Stefano Ercolessi, Ph.D. and Massimo Petracca, PhD.

27/05/2026

Only one day left!
Click the link to Register: https://www.stko.net/webinar-registration

𝗗𝗼𝗻’𝘁 𝗷𝘂𝘀𝘁 𝗰𝗼𝗻𝗻𝗲𝗰𝘁 - 𝗶𝗻𝘁𝗲𝗿𝗮𝗰𝘁

🗓️ 28 May 2026 – 18:00 (CEST - UTC+2)
📍 Live on Zoom
Stefano Ercolessi, Ph.D. and Massimo Petracca, PhD.

STKO provides dedicated Interaction tools to make these connections explicit, controlled, and easy to verify, so your model remains robust as complexity grows. Because good analysis is not only about elements and materials. It’s about how everything works together.

21/05/2026

Don't forget to join us for an insightful webinar with Stefano Ercolessi, PhD and Massimo Petracca, PhD.

👉 Register here: https://www.stko.net/webinar-registration
🗓️ 28 May 2026 – 18:00 (CEST - UTC+2)
📍 Live on Zoom

𝗗𝗼𝗻’𝘁 𝗷𝘂𝘀𝘁 𝗰𝗼𝗻𝗻𝗲𝗰𝘁 - 𝗶𝗻𝘁𝗲𝗿𝗮𝗰𝘁

This webinar focuses on a part of modeling that is often treated as “just constraints”, until it becomes the source of instability, unexpected stiffness, or results that don’t make sense: interactions.
STKO provides dedicated Interaction tools to make these connections explicit, controlled, and easy to verify, so your model remains robust as complexity grows. Because good analysis is not only about elements and materials. It’s about how everything works together.

20/05/2026

Modeling RC frames with masonry infills presents a significant challenge due to the complex interaction between the structural frame and the non-structural partitions. Capturing the actual seismic response requires accounting for how infills continuously modify global stiffness, alter load paths, and introduce highly nonlinear behaviors that vary as the loading progresses.

The main difficulty lies in the evolution of the structure during the analysis: as damage progresses, infill elements crack, degrade, and eventually lose their capacity entirely.

To avoid static approximations that fail to capture this degradation, a dynamic modeling approach is necessary. This video demonstrates a workflow using STKO and OpenSees to implement equivalent nonlinear mechanisms for infills. The simulation accounts for frame-infill interaction and utilizes algorithmic element removal to represent the progressive loss of capacity as damage evolves.

The implementation details and simulation results are available here: https://www.youtube.com/watch?v=1qk-pDYEZeM

July 1st: In this e-learning course we are going to explain how to ...

19/05/2026

𝗗𝗼𝗻’𝘁 𝗷𝘂𝘀𝘁 𝗰𝗼𝗻𝗻𝗲𝗰𝘁 - 𝗶𝗻𝘁𝗲𝗿𝗮𝗰𝘁

FREE WEBINAR
🗓️ 28 May 2026 – 18:00 (CEST - UTC+2)
📍 Live on Zoom
👉 Register here: https://www.stko.net/webinar-registration

Presenter: Stefano Ercolessi, PhD
Q&A: Massimo Petracca, PhD

This webinar focuses on a part of modeling that is often treated as “just constraints”, until it becomes the source of instability, unexpected stiffness, or results that don’t make sense: interactions.

In practical FEM modeling, connections between components are often introduced pragmatically to enforce kinematics, transfer forces, or handle offsets between idealized parts. This works well in simple cases, but small choices in how connectivity is imposed can quickly become hidden assumptions that dominate stiffness, stress patterns, and sometimes even numerical stability.

STKO provides dedicated Interaction tools to make these connections explicit, controlled, and easy to verify, so your model remains robust as complexity grows. Because good analysis is not only about elements and materials. It’s about how everything works together.

18/05/2026

Thank you to Shima Sadeghzadeh, Ph.D. and Massimo Petracca, PhD., and everyone who joined our 𝗠𝗲𝘀𝗵 𝗺𝗮𝘁𝘁𝗲𝗿𝘀, 𝗮𝗻𝗱 𝗶𝘁 𝘀𝗵𝗼𝘂𝗹𝗱 𝗻𝗲𝘃𝗲𝗿 𝘀𝗹𝗼𝘄 𝘆𝗼𝘂 𝗱𝗼𝘄𝗻. webinar.

🔎 If you couldn’t make it or would like to revisit the session, you can catch all the insights on our YouTube at: https://youtu.be/oVstxq8eFj4?si=cC-26Edsz0i9H3zN

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This webinar explores a critical concept often overlooked in structural analysis workflows: the limitations of the orphan mesh approach. In many structural e...

14/05/2026

One hour left make sure to join!
Click the link to Register:https://www.stko.net/webinar-registration

𝗠𝗲𝘀𝗵 𝗺𝗮𝘁𝘁𝗲𝗿𝘀, 𝗮𝗻𝗱 𝗶𝘁 𝘀𝗵𝗼𝘂𝗹𝗱 𝗻𝗲𝘃𝗲𝗿 𝘀𝗹𝗼𝘄 𝘆𝗼𝘂 𝗱𝗼𝘄𝗻.

🗓️ 14 May 2026 – 18:00 (CEST - UTC+2)
📍 Live on Zoom
Shima Sadeghzadeh, Ph.D. and Massimo Petracca, PhD.

13/05/2026

Only one day left!
Click the link to Register: https://www.stko.net/webinar-registration

𝗠𝗲𝘀𝗵 𝗺𝗮𝘁𝘁𝗲𝗿𝘀, 𝗮𝗻𝗱 𝗶𝘁 𝘀𝗵𝗼𝘂𝗹𝗱 𝗻𝗲𝘃𝗲𝗿 𝘀𝗹𝗼𝘄 𝘆𝗼𝘂 𝗱𝗼𝘄𝗻.

🗓️ 14 May 2026 – 18:00 (CEST - UTC+2)
📍 Live on Zoom

Shima Sadeghzadeh, Ph.D. and Massimo Petracca, PhD.

STKO introduces a geometry-first workflow: define the structure first, then discretize it with full control and consistency. Connectivity is preserved automatically, and complex geometries remain manageable.

11/05/2026

💡 Monday question: what is an interaction in a structural model?

In nonlinear structural analysis, most modeling errors come from connections and constraints between components.

https://www.youtube.com/watch?v=i7-OpIK5RjM

With STKO, interactions are part of the modeling process from the beginning. Connectivity is defined directly through geometry, constraints remain consistent and controllable, and the interaction between components is explicit.

A structural model is not just a collection of elements. It is a system of interacting parts that must work together the way the real structure does.

If the connections are wrong, the structural response is wrong.

This tutorial explains how to enter the relationship that occurs between model elements through interactions. We’ll explore the creation of node to node, no...