Hi, please I am not sure I understand the question. Do you mean if I am going to make more videos on academic posters? I will need some more information please.
Thank you very much, Dr. Michael, for these good lectures. I have a question. How do I determine the volume fraction of two materials in the case of preparing a slide or layer consisting of polymeric material and fibers at rates of 30% and 70% in the Abaqus program? Is there an explanatory video available?
Hello, thanks for your comment. I am a bit unsure about what the question is about. If you want to determine the volume fraction of two materials (composites), you can do so by finding the weight contribution of each of the phases that make up the system. The weights of say E-glass fibre and the weight of the matrix, say Epoxy. With those weights, you define the weight fractions. You also need to know the densities of the constituents that make up the composite. If you want to see how to make the conversions, a quick google search will help you as you can see from here: sites.google.com/site/compositematerialsdesign/home/weight-and-volume-fractions. I am not sure if this is what you are looking for. Good luck with the research.
Hello Dr Michael i modeled to abaqus a simulation of unidirectional fiber like your video , and i did change the model but i have a problem in the graphs , i hope to help me because i have a presentation of my project next week and thanks a lot for your videos
Thank you very much Dr. Michael I am very grateful to you for your answer I am very interested in your valuable lectures My question is in the picture attached to this message about how to determine the value (percentage %) for each material in the preparation of the composite material, whether layer, slice or cube. That is, anywhere in the choices of the Abacus program when we specify these values, that is, when we limit the dimensions and density, and with what Young's modulus and the Poisson's Modulust, because I searched a lot and did not find anyone who explained it. Where I noticed that in the video I posted, the value of polypropylene was 40% and fiber was 60%, how did this happen? This is in the case of two materials, but if it is three materials, it means two solid materials with a polymeric material, and I hope that you will help me with it, and I am very grateful to you
I understand the question now. With regards to the volume fraction of the fibre and matrix constituents, you have to determine this yourself when you design the composite. It is a volume fraction that means in creating the geometry, you have to decide how much of the volumetric space (virtual domain) is going to be occupied by the fibre and how much by the matrix. The volume fraction of 40% fibre means that only 40% of the volume will be occupied by the fibre. How do you then prepresent this? So, if you have a space of 100 x 100 x 100 overall for the composite, you ahve to find how many fibres will occupy the fibre to give you a 40% volume fraction. You have to make some calculations and if you look at my videos on RVE modelling of UD composites, you will see how to do the calculations. If the calculation shows that 5 fibres are required (for example), then you make sure in the 100x100x100 space, you create cylinders that represent the fibres based on their radius that will cover 40% of the volume. The remaining space will then be 60% which is the matrix. For a three-constituent system, the same things holds. Clearly, where you need to get the percentages i.e. 40% and 60% will come from a manufacturer's data sheet for the material you are using. In the case of the videos you refer to, I got them from the publication referred in the video which stated what percentage is the volume fraction for the fibre (E-glass) and the matrix (polypropylene). For the system you are testing, please find those percentages yourself. If you do not have it, then you can decide how you want to give percentages to the parts provided all of them add up to 100%. That is my suggestion.
Thank you very much Dr. Michael I am very grateful to you for your answer I am very interested in your valuable lectures My question is in the picture attached to this message about how to determine the value (percentage %) for each material in the preparation of the composite material, whether layer, slice or cube. That is, anywhere in the choices of the Abacus program when we specify these values, that is, when we limit the dimensions and density, and with what Young's modulus and the Poisson's Modulust, because I searched a lot and did not find anyone who explained it. Where I noticed that in the video I posted, the value of polypropylene was 40% and fiber was 60%, how did this happen? This is in the case of two materials, but if it is three materials, it means two solid materials with a polymeric material, and I hope that you will help me with it, and I am very grateful to you
I understand the question now. With regards to the volume fraction of the fibre and matrix constituents, you have to determine this yourself when you design the composite. It is a volume fraction that means in creating the geometry, you have to decide how much of the volumetric space (virtual domain) is going to be occupied by the fibre and how much by the matrix. The volume fraction of 40% fibre means that only 40% of the volume will be occupied by the fibre. How do you then prepresent this? So, if you have a space of 100 x 100 x 100 overall for the composite, you ahve to find how many fibres will occupy the fibre to give you a 40% volume fraction. You have to make some calculations and if you look at my videos on RVE modelling of UD composites, you will see how to do the calculations. If the calculation shows that 5 fibres are required (for example), then you make sure in the 100x100x100 space, you create cylinders that represent the fibres based on their radius that will cover 40% of the volume. The remaining space will then be 60% which is the matrix. For a three-constituent system, the same things holds. Clearly, where you need to get the percentages i.e. 40% and 60% will come from a manufacturer's data sheet for the material you are using. In the case of the videos you refer to, I got them from the publication referred in the video which stated what percentage is the volume fraction for the fibre (E-glass) and the matrix (polypropylene). For the system you are testing, please find those percentages yourself. If you do not have it, then you can decide how you want to give percentages to the parts provided all of them add up to 100%. That is my suggestion.
Thank you Dr Mike for the wonderful video.
You are very welcome
Hi Dr Mike could u please informe about more academic topics for a poster? Thanks for your explanation.Amazing 💜
Hi, please I am not sure I understand the question. Do you mean if I am going to make more videos on academic posters? I will need some more information please.
Thank you very much, Dr. Michael, for these good lectures. I have a question. How do I determine the volume fraction of two materials in the case of preparing a slide or layer consisting of polymeric material and fibers at rates of 30% and 70% in the Abaqus program? Is there an explanatory video available?
Hello, thanks for your comment. I am a bit unsure about what the question is about. If you want to determine the volume fraction of two materials (composites), you can do so by finding the weight contribution of each of the phases that make up the system. The weights of say E-glass fibre and the weight of the matrix, say Epoxy. With those weights, you define the weight fractions. You also need to know the densities of the constituents that make up the composite. If you want to see how to make the conversions, a quick google search will help you as you can see from here: sites.google.com/site/compositematerialsdesign/home/weight-and-volume-fractions. I am not sure if this is what you are looking for. Good luck with the research.
Hello Dr Michael i modeled to abaqus a simulation of unidirectional fiber like your video , and i did change the model but i have a problem in the graphs , i hope to help me because i have a presentation of my project next week and thanks a lot for your videos
I can help depending on the questions. What exactly is the problem with the graphs? Which video are you referring to?
Thank you very much Dr. Michael
I am very grateful to you for your answer
I am very interested in your valuable lectures
My question is in the picture attached to this message about how to determine the value (percentage %) for each material in the preparation of the composite material, whether layer, slice or cube. That is, anywhere in the choices of the Abacus program when we specify these values, that is, when we limit the dimensions and density, and with what Young's modulus and the Poisson's Modulust, because I searched a lot and did not find anyone who explained it.
Where I noticed that in the video I posted, the value of polypropylene was 40% and fiber was 60%, how did this happen? This is in the case of two materials, but if it is three materials, it means two solid materials with a polymeric material, and I hope that you will help me with it, and I am very grateful to you
I understand the question now. With regards to the volume fraction of the fibre and matrix constituents, you have to determine this yourself when you design the composite. It is a volume fraction that means in creating the geometry, you have to decide how much of the volumetric space (virtual domain) is going to be occupied by the fibre and how much by the matrix. The volume fraction of 40% fibre means that only 40% of the volume will be occupied by the fibre.
How do you then prepresent this? So, if you have a space of 100 x 100 x 100 overall for the composite, you ahve to find how many fibres will occupy the fibre to give you a 40% volume fraction. You have to make some calculations and if you look at my videos on RVE modelling of UD composites, you will see how to do the calculations. If the calculation shows that 5 fibres are required (for example), then you make sure in the 100x100x100 space, you create cylinders that represent the fibres based on their radius that will cover 40% of the volume. The remaining space will then be 60% which is the matrix.
For a three-constituent system, the same things holds. Clearly, where you need to get the percentages i.e. 40% and 60% will come from a manufacturer's data sheet for the material you are using. In the case of the videos you refer to, I got them from the publication referred in the video which stated what percentage is the volume fraction for the fibre (E-glass) and the matrix (polypropylene). For the system you are testing, please find those percentages yourself. If you do not have it, then you can decide how you want to give percentages to the parts provided all of them add up to 100%.
That is my suggestion.
Just what I was looking for. Thank you so much. Just subbed nwanem
Glad I could help. Thanks for the sub.
Thanksssssss
I appreciate your support!
❤
Thanks
Thank you very much Dr. Michael
I am very grateful to you for your answer
I am very interested in your valuable lectures
My question is in the picture attached to this message about how to determine the value (percentage %) for each material in the preparation of the composite material, whether layer, slice or cube. That is, anywhere in the choices of the Abacus program when we specify these values, that is, when we limit the dimensions and density, and with what Young's modulus and the Poisson's Modulust, because I searched a lot and did not find anyone who explained it.
Where I noticed that in the video I posted, the value of polypropylene was 40% and fiber was 60%, how did this happen? This is in the case of two materials, but if it is three materials, it means two solid materials with a polymeric material, and I hope that you will help me with it, and I am very grateful to you
I understand the question now. With regards to the volume fraction of the fibre and matrix constituents, you have to determine this yourself when you design the composite. It is a volume fraction that means in creating the geometry, you have to decide how much of the volumetric space (virtual domain) is going to be occupied by the fibre and how much by the matrix. The volume fraction of 40% fibre means that only 40% of the volume will be occupied by the fibre.
How do you then prepresent this? So, if you have a space of 100 x 100 x 100 overall for the composite, you ahve to find how many fibres will occupy the fibre to give you a 40% volume fraction. You have to make some calculations and if you look at my videos on RVE modelling of UD composites, you will see how to do the calculations. If the calculation shows that 5 fibres are required (for example), then you make sure in the 100x100x100 space, you create cylinders that represent the fibres based on their radius that will cover 40% of the volume. The remaining space will then be 60% which is the matrix.
For a three-constituent system, the same things holds. Clearly, where you need to get the percentages i.e. 40% and 60% will come from a manufacturer's data sheet for the material you are using. In the case of the videos you refer to, I got them from the publication referred in the video which stated what percentage is the volume fraction for the fibre (E-glass) and the matrix (polypropylene). For the system you are testing, please find those percentages yourself. If you do not have it, then you can decide how you want to give percentages to the parts provided all of them add up to 100%.
That is my suggestion.