Stress Values in Specific Places - Sensors

Thursday July 31, 2014 at 4:10pm
An easy way to monitor stress values in critical areas of your model.
Stress Values in Specific Places - Sensors

I was asked this just yesterday - "How can we get stress values for specific locations of our model?"
- Or words to that effect!

You may know that if you have run a stress analysis in SOLIDWORKS Simulation, there is a "probe" that you can use to interrogate the model by clicking it on screen.
Personally, I've always thought this is a bit vague, and if you run more than one analysis it can be hard to "probe" exactly the same spot twice.

One easy answer (that I will be using myself from now on!) is to set up "Sensors" on your model in key areas.
At the top of the Design Tree there is a Sensors folder - if you right-click on that you get the option to "Add Sensor" - there are various things that they can monitor, in this case I set the Sensor Type to Simulation Data.
In the next box down (Data Quantity) there are various things - normally I would tend to use Factor of Safety - as I find that the easiest to understand (if your Factor of Safety comes out below 1, then your part has been permanently deformed, so make it stronger!).

In this case I used "Stress" and then "1st Principal Stress."

SOLIDWORKS Stress Values in Location 1
 

As you can see, in the Properties panel I selected the option "Max over Selected Entities" and picked the lower fillet on screen.

But what if you want to find the stress at a specific point?
Well, if you have a vertex on your model you could use that - although sharp corners are not great for stress analysis - or in real life either!

So how to do it?

Well, you can create a Reference Geometry point - which is what I did here: -

 
SOLIDWORKS Stress Values in Location 2 

There are various options as to where you can create Reference Points - I put mine in the centre of the cylindrical shaft where the top fillet meets it.

I then added a sensor to monitor the stress there.

One important thing to do is re-name your sensors! You'll find them by expanding that Sensors folder on your design tree.

With these two sensors set up, I ran the simulation study and - bingo!

They display the stress values right there at the top of the design tree! 
I think I'll be using these quite a bit myself...

SOLIDWORKS Stress Values Sensor Results

I hope that helps you to avoid stressful situations...

Rory Niles
SOLIDWORKS Instructor.

Related Blog Posts

Virtually Testing a Scrum Machine with SOLIDWORKS
Following on from our first blog where we discuss how we modelled a scrum machine, as part of our rugby inspired competition with seller MECAD in this blog we'll take a look at analysing our scrum machine with SOLIDWORKS Simulation.
Rugby Lions Challenge - Scrum Machine
As the Rugby Lions South Africa tour continues we are launching into a series of CAD competitions between Solid Solutions and MECAD - South African SOLIDWORKS Reseller, battling it out in SOLIDWORKS, as our countries' teams are battling it out on the...
Why Are Businesses Investing In Simulation Tools A
In our first webinar series since Design Rule Ltd. became part of the Solid Solutions Group, we welcome both Design Rule and Solid Solutions customers to this series of webinars focusing on the latest Simulation technology available. Every Wednesday ...

 Part of Solid Solutions Group

MENU
Top