Hello Dr. Jawed, I hope I am not bothering you, but I have been having problems with a Speedcore wall model subjected to fire loads, very similar to CFT columns with a steel formwork and concrete fill. The problem I have is that the model has interaction issues when the plates buckle, as they penetrate the concrete, even though I have hard contact interaction. Do you have any advice to help the model converge?
I’m not exactly sure about fire loading. But in my view static analysis procedures normally don’t work or have convergence issues when there are many contact interactions. I would probably use explicit dynamic procedures with slow load application and using mass scaling. Also you can increase node penetration tolerance when you define hard contact.
Hello sir could you advise on quasi static compression of test of honeycomb structure made using 3d printing mark forged nylon filament, as to what the material properties are and how to go about simulating a compression test
• No, analytical rigid part cannot be used. • Analytical rigid parts only have EXTRUDED or REVOLVED base feature. • This means only tube and cones can be created with analytical rigid parts, NOT planner base as used in this study. • Put it simply, it is ONLY possible to create plane shell plate with discrete rigid parts. • Just try creating a part using analytical rigid base feature, you’ll see that it only has extruded and revolved base, not planner base feature.
Is there free version of the ABAQUS to install it, I'm new user, I'm going to use this software to calculate the Energy Absorption of hybrid composite tube, your recommendation, please,,
DOWNLOAD all FE modelling files and lecture slides at tinyurl.com/JQureshiABAQUS
This procedure can be use for concrete filled double Skin tube columns for axial compression
It can be used, but confined concrete models should be used. Also, imperfections will be different. A filled column will not fold in the same way.
Hello Dr. Jawed,
I hope I am not bothering you, but I have been having problems with a Speedcore wall model subjected to fire loads, very similar to CFT columns with a steel formwork and concrete fill. The problem I have is that the model has interaction issues when the plates buckle, as they penetrate the concrete, even though I have hard contact interaction. Do you have any advice to help the model converge?
I’m not exactly sure about fire loading. But in my view static analysis procedures normally don’t work or have convergence issues when there are many contact interactions. I would probably use explicit dynamic procedures with slow load application and using mass scaling. Also you can increase node penetration tolerance when you define hard contact.
Hello sir could you advise on quasi static compression of test of honeycomb structure made using 3d printing mark forged nylon filament, as to what the material properties are and how to go about simulating a compression test
I am not completely sure. But I think the properties will be not be isotropic any 3d printed material.
Is it possible to use analytical rigid instead of discrete?
• No, analytical rigid part cannot be used.
• Analytical rigid parts only have EXTRUDED or REVOLVED base feature.
• This means only tube and cones can be created with analytical rigid parts, NOT planner base as used in this study.
• Put it simply, it is ONLY possible to create plane shell plate with discrete rigid parts.
• Just try creating a part using analytical rigid base feature, you’ll see that it only has extruded and revolved base, not planner base feature.
@@DrJQureshi thank you for your reply
Is there free version of the ABAQUS to install it, I'm new user, I'm going to use this software to calculate the Energy Absorption of hybrid composite tube, your recommendation, please,,