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Sir i am modelling delamination in abaqus explicit for low velocity impact . How to calculate delamination damage area what should be selected in history output
Yes, Abaqus Explicit can be used to model delamination in composite materials for low velocity impact. The simulation process typically involves creating a detailed finite element model of the composite material, including the different layers and interfaces, and defining the appropriate boundary conditions and material properties. The impact event can be modeled using explicit dynamics, with a specified impact velocity and direction. To model delamination, various failure criteria and damage models can be used, such as the Hashin criterion, Tsai-Wu criterion, and the Maximum Principal Strain (MPS) criterion. These criteria can be used to define the conditions under which delamination occurs. The cohesive zone model (CZM) can also be used to model the behavior of the delamination interface. Once the simulation is run, the results can be analyzed to study the behavior of the composite material under impact and the progression of delamination. The simulation results can also be used to optimize the design of the composite material to improve its performance under impact. It's worth noting that the above is a general description and the actual implementation of delamination modeling in Abaqus Explicit will depend on the specific material, the impact conditions, and the desired level of detail of the simulation.
Hi doctor thank you for the video. But I have a question about thé elastic properties of thé cohesive material.: when I have the experimental curve Force- displacement of the mode I ( DCB model) haw Can I calculateur thé elastic properties. Thank you in advance
Hi doctor thank you for the video. But I have a question about thé elastic properties of thé cohesive material.: when I have the experimental curve Force- displacement of the mode I ( DCB model) haw Can I calculateur thé elastic properties. Thank you in advance
Hi doctor thank you for the video. But I have a question about thé elastic properties of thé cohesive material.: when I have the experimental curve Force- displacement of the mode I ( DCB model) haw Can I calculateur thé elastic properties. Thank you in advance
@@Professor3MEC well I am trying to simulate the delamination of composite laminates (16 plies) , I created my part as a solid extrusion (which from my understanding only effects the appearnce but my laminates will still be treated as shell ), so I was thinking of assigning the plies this mtrl : elastic , lamina and a heshin damage criteria for failure , would that in your opinion be suitable or should i in my case use Engineering constant like the case in your video ?
and also my goa is to asses the reduction in stiffness due to the failure or even after a tensile test, and am not sure how should i do that ? i mean is there a way in the post processing phase to get the reduced stiffness matrix and evaluate it ? or when am doing a tensile test model is there a way to evaluate the elastic mtrl properties in a tensile test ?
@@mahaelsaeid3713 you may find this one useful as in this case it was modelled using solid elements but one can use shell too, if used carefully with a few tricks. ruclips.net/video/35tiZ4DvaBo/видео.html
Hi, your explanation is so good. We are a startup looking forward to benefit students in India with your expertise. Please check email from Fresher2Pro. Thank you
Models can be donwloaded free from www.professor3mec.com
Please do support the channel at ko-fi.com/professor3mec
All proceedings go towards new videos and keeping the webpage going.
Thank you so much for the video !
Why you did not use the composite lay up?
It was long time ago but I think idea was to show delamination and hence the approach.
Sir i am modelling delamination in abaqus explicit for low velocity impact . How to calculate delamination damage area what should be selected in history output
Yes, Abaqus Explicit can be used to model delamination in composite materials for low velocity impact. The simulation process typically involves creating a detailed finite element model of the composite material, including the different layers and interfaces, and defining the appropriate boundary conditions and material properties. The impact event can be modeled using explicit dynamics, with a specified impact velocity and direction.
To model delamination, various failure criteria and damage models can be used, such as the Hashin criterion, Tsai-Wu criterion, and the Maximum Principal Strain (MPS) criterion. These criteria can be used to define the conditions under which delamination occurs. The cohesive zone model (CZM) can also be used to model the behavior of the delamination interface.
Once the simulation is run, the results can be analyzed to study the behavior of the composite material under impact and the progression of delamination. The simulation results can also be used to optimize the design of the composite material to improve its performance under impact.
It's worth noting that the above is a general description and the actual implementation of delamination modeling in Abaqus Explicit will depend on the specific material, the impact conditions, and the desired level of detail of the simulation.
I have a question? can I use 'surface-based conhesive behavior'???
I never used it to be very honest. Might have to look into documentation.
Hi professor, Thank you,i received error '' the tri shape associated with selected region does not have a valid element type'' Can you help me ?
Send me your model file and I can do a quick surgery
You need to select "quad" in mesh controls within the mesh module. This should solve your problem.
Thank you, problem is solved@@jacobwilson1171
Great to see people are using this channel to help each other out. Thanks.
Hello, can tie constraint be applied for dynamic, explicit solver?
It should be straight forward. Please see below tutorial.
ruclips.net/video/WTsXGMVAtwQ/видео.html
@@Professor3MEC Thank you for your help sir.
@@jaywagh8738 please don't forget to like the videos and share around. Thanks
Hello sir, where we use paramters like Kn, (Ks, Kr) in traction separation model in abaqus????
do you mean in ABAQUS CAE how to input? or theoretical what do they mean?
Hi doctor thank you for the video. But I have a question about thé elastic properties of thé cohesive material.: when I have the experimental curve Force- displacement of the mode I ( DCB model) haw Can I calculateur thé elastic properties. Thank you in advance
Hi doctor thank you for the video. But I have a question about thé elastic properties of thé cohesive material.: when I have the experimental curve Force- displacement of the mode I ( DCB model) haw Can I calculateur thé elastic properties. Thank you in advance
Hi doctor thank you for the video. But I have a question about thé elastic properties of thé cohesive material.: when I have the experimental curve Force- displacement of the mode I ( DCB model) haw Can I calculateur thé elastic properties. Thank you in advance
you may measure slopes or use manual curve fitting?
hi I have a question , can we uselamina option for mtrl type instead of engineering constant ? when to use each of them ? thanks in advance
do you mean in 3D model? as this case was kind of 2D /2.5D.
@@Professor3MEC well I am trying to simulate the delamination of composite laminates (16 plies) , I created my part as a solid extrusion (which from my understanding only effects the appearnce but my laminates will still be treated as shell ), so I was thinking of assigning the plies this mtrl : elastic , lamina and a heshin damage criteria for failure , would that in your opinion be suitable or should i in my case use Engineering constant like the case in your video ?
and also my goa is to asses the reduction in stiffness due to the failure or even after a tensile test, and am not sure how should i do that ? i mean is there a way in the post processing phase to get the reduced stiffness matrix and evaluate it ? or when am doing a tensile test model is there a way to evaluate the elastic mtrl properties in a tensile test ?
@@mahaelsaeid3713 so you are modeling each ply as shell in 3D and then want to simulate the delamination happening between any of the plies?
@@mahaelsaeid3713 you may find this one useful as in this case it was modelled using solid elements but one can use shell too, if used carefully with a few tricks.
ruclips.net/video/35tiZ4DvaBo/видео.html
Hi, your explanation is so good. We are a startup looking forward to benefit students in India with your expertise. Please check email from Fresher2Pro. Thank you