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Hello, I have the same problem with my model. Could anyone help me how to get parameters for damage initiation (maximum nominal stress, normal only, shear-1 and shear-2) and damage evolution. My model is related to pre-stressing of strand in concrete. I donot know how to get parameters like Knn...

Thank you so much

Thank you, I will check. I want to plot bond stress at interaction vs strand slip. How I can plot it?

I modeled the strands as a 3D circular bar and beam as 3D with hole inside for each strand. I use the surface-to-surface contact interaction using cohesive, normal, tangential, and damage behavior from ABAQUS contact interaction.

I am simulating a prestress beam. I used normal behaviour, tangential behaviour, cohesive behaviour, and damage behaviour. Are these are right interaction combinations for surface to surface? Also in cohesive behaviour, there is traction separation stiffness like Knn, Kss, Ktt. How to calculate...

I have modeled a beam prestressed with strands. The model works but I want to plot the bond stress at the interface of strand and concrete versus slip of strand. How I can plot this graph from .odb file?

The screenshot related to the spring element assignment is given as an attachment (Page 6/16). "In this study, the steel used was not ribbed and the consideration of interfacial behavior is limited to bond-slip behavior idealized by using interfacial distributed spring elements of zero...

Hello, I am trying to model prestressing in cables (strands) in concrete. I am trying to replicate the model as in the paper attached. In the paper, the author mentioned the spring elements between concrete and strands interface. Can anyone help me how to introduce the spring element for...

FYI, I don't have a tie constraint in the model.

I got a new error: THE *CONTACT PAIR pair (ASSEMBLY_GIRDER-1_SURF-3_DUCT, ASSEMBLY_STRAND-1_SURF-2_STRAND) HAS BEEN PROCESSED BEFORE. REMOVE DUPLICATE PAIR. -- THE SAME PAIR OF SURFACES CANNOT BE SPECIFIED MORE THAN ONCE FOR *TIE AND *CONTACT PAIR. ONCE A PAIR OF SURFACES IS USED FOR *TIE, IT...

Can you please explain in steps, how to create the interaction between strands and concrete?

Thank you FEA way for your message. Can you please proof check my file and share it here again?

.jnl filehttps://files.engineering.com/getfile.aspx?folder=9ca0d27a-4ba8-4b47-98d2-7ad88d351a21&file=PSBeam_Disp.jnl

I am trying to model prestressing in strands in a beam. I got this error as below. "Surface-based COHESIVE BEHAVIOR cannot be used for contact pair interactions. See the surface interaction named INTPROP-1" My purpose is to apply an initial prestress or initial displacement or initial jack...

Hello, I am trying to apply prestressing to strands in a concrete beam. The idea is: 1. I need to pull the strand by a force of 35 Kip (Loading Step). 2. Then cast the concrete and wait for 1 day so that the concrete beam is hardened enough. 3. After one day, the strands released by prestressed...

Hello, I am trying to apply prestressing to strands in a concrete beam. The idea is: 1. I need to pull the strand by a force of 35 Kip (Loading Step). 2. Then cast the concrete and wait for 1 day so that the concrete beam is hardened enough. 3. After one day, the strands released by prestressed...

Thank you. Do you know how to apply prestressing to strands in ABAQUS?

Hi, I have a .odb file of my model. Unfortunately, all other files like .inp, .cae, and .jnl are misplaced from the PC. How I can get all my files back from .odb?

Hello, I am trying to model the interaction between prestressed CFRP strands and concrete in ABAQUS. I have some questions: 1. What would be the friction coefficient between concrete and CFRP strands in tangential behavior? 2. I am using Coeff. friction as 1.4, is it fine for tangential...

Thank you FEA way. What about the pre-stressing action? I hope you have checked that also.