Hoffman Failure Criteria

[aerohead56]

We have encountered a composites analysis that uses a Hoffman Failure Index criteria to calculate failure. We have been unable to find any reference information on this. Does anyone know about this criteria or can anyone provide a reference that we can look at?

 

[happypap]

The Hoffman criteria for composites is the same as the Tsai-Wu criteria except a different form for the interaction term (FXY) is used). You can find the equations in the following chapter:

http://www.aero.iitb.ac.in:8081/~awarman/composite_course/Chapter9.pdf

 

[aerohead56]

I cannot access your link.

 

[happypap]

http://www.aero.iitb.ac.in:8081/~awarman/composite_course/Chapter9.pdf

 

[aerohead56]

I can access

http://www.aero.iitb.ac.in.

I cannot access anything past this in your URL. I tried it with :8081 and :8081/~awarman and cannot access either of these. Do you have another link to this information?

Thanks!

 

[edbgtr]

I had no problem with it. Click on it to open with a PDF reader on your machine, and then save it to a folder.
Ed

 

[FrenchCAD]

really interesting support. thanks alot

Cyril Guichard
Mechanical Engineer