Topic: Gap material

Dear sir

I have some information about grout used in gap region ,The specified compressive strength is 7.5 ksi and the thickness of grout is 1 in ,
can you help me about calculating Knn and Ktt.

with special thanks.

Re: Gap material

I assume you have already read the "I have problems when using the Interface (GAP) material on contacts" paragraph from our ATENA Known Problems page http://www.cervenka.cz/products/atena/known-problems - you may use the concrete material parameters generator based on compressive strength in ATENA 2D or 3D to get an estimate of the tensile strength of your grout (if you do not have any better value). Please do not forget the interface stiffness values depend on element size.