Hey I've got a beam and between two different materials i'm thinking to
put a cohesive zone with "weaker" material properties. Does it make
sense to use cohesive zone models?
My model is looking like this now. But I don't know what's wrong. It
seems taht the whole force/displacement is lost in the cohesive zone.
If somebody can help that would be very nice
here the pic: http://f.666kb.com/i/bnody4selpc6iml9m.jpg
Thanks for advance
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Cohesive zone used for adhesives
If you are using an adhesive to bond the two materials, you can use cohesive elements. But you should get the correct material properties for the cohesive model. You need the normal and shear strength of the bonded interface and fracture energies in modes I and II. Your picture shows that the cohesive interface is failing at this load. If your properties are right, you should be getting the right failure load.
-Arun
Cohesive Zone - Assigning a section - Problem
Hey,
my cohesive zone problem works better and better. But now I've got a problem, when I want to assign the beam-part different sectionns.
My first picture shows the results, when the whole part "plate" gets the same section assignement: http://666kb.com/i/bo4p2hlt2mtmk5zje.jpg
My second picture shows the results, when I have two section assignements (the top and the bottom region) http://f.666kb.com/i/bo4p0n4v76458h82y.png . Both sections (section1 and section2) have the same material configruations. so there should be the same result as in the first case?
can someone help me to find out the mistake
Thanks for advance