nav[aria-label="Primary Navigation"] { padding: 0; & ul { list-style: none; width: 100%; display: flex; flex-direction: row; justify-content: start; align-items: start; gap: 30px; padding: 0; & li { margin: 0; } & ul li { list-style: none; } } }

Siemens Community Catalyst Program

The Siemens Community Catalyst program was co-created with our community to acknowledge technology leaders who consistently contribute to the Siemens Community. Nominations are accepted on a rolling basis.

Nominate Now

strees(t) vs von-mises(s)

Altair Forum User

I am performing stress analysis of component assembly having a solid block and a shell plate connected to each other.My question is what is the difference between stress(t) and von-mises ?

Find more posts tagged with

English

Radioss

Accepted answers

All comments

Altair Forum User

Von Mises stress is used to check whether their design will withstand a given load condition, that is if a given material will yield or fracture.

Stress(t) is the stress tensor results. There are many open web resources available on this topic and I recommend you to go through the same.

Altair Forum User

Stress tensor also having vonmises ?

image.png.c0a20b7aa4afea23b00fe60edd4007b3.png

Altair Forum User

Hi,

The tensor results that are computed in HyperView is available in the Help Menu and the same is attached along for your reference.

Unable to find an attachment - read this blog

Altair Forum User

QUE: Why and when do we go for stress (t)?

In my case, when I attach 2D shell to the hex meshing, I notice von mises (s) stress is much lesser in shell portion as compared to the hex portion. When I select Stress (t) and go for von mises, I find comparable stress values in shell part as that of the von mises (s) stress of the previous case (in the solid part) . What does it mean? Please explain.
Does it mean when we have to see the stresses of the shell part, we go for the von mises in the stress (t) option?
You said we use von mises stress is when we want to check when my failure may occur. Which von mises stress do you mean by that? Von mises (s) or the von mises option in the stress (t) option? [Actually I have an assembly containing solid shell parts].

Altair Forum User

Hi,

The tensor results is a description about what happens in one direction due to the happenings in other directions. As an example, sigma_xx is the stress acting in the x direction due to a force acting in the x-direction. Similarly in other directions also.

For Von Mises in tensor is calculated using principal stresses (please go through the document shared in the last reply), and there will be some variation in scalar and tensor values.

We normally check for scalar values.

Altair Forum User

sir i did please see.

Quick Links

Upcoming Events

Advancing power electronics design with Simcenter PSIM and High-Performance Computing
Join us for a community conversation on how High-Performance Computing (HPC) and Simcenter PSIM work together to meet the increasing demands of modern power electronics simulation. During this one-hour technical session, you'll discover how leveraging HPC can speed up simulations, improve scalability, and empower engineers…
Getting Started with Faster Motor Building in Simcenter Simlab
Join us for a community conversation on accelerating your motor simulation workflow with Simcenter Simlab. In this beginner-friendly session, we'll introduce the platform's automated model-building capabilities and show how easy it is to set up your first electric motor analysis. You'll see the basic steps of geometry…
Practical hybrid solver workflows in Simcenter Feko
Join us for a Community Conversation where we'll discuss practical approaches to analyzing complex electromagnetic models using hybrid solver techniques. This session will provide a general overview of how different computational methods can be combined within a single simulation to address models containing varied…

View all community events