سلام خیلی ممنون از آموزش عالی و خیلی مفیدتون. من یسوالی داشتم همین تکنیک رو برای استخوان فمور اجرا میکنم فقط با افزایش مقدار پارامترهای توپولوژی مقدار زیادی از سطح از دست میره و سپس مش زنی اتفاق نمیوفته و حتی combined دچار ارور میشه برای رفع این مشکل چه کاری باید انجام داد؟
سلام. خواهش میکنم. اگر عدد مناسب برای جلوگیری از حذف تعداد زیادی از لبه ها رو پیدا نمی کنید و یا احساس میکنید که برای هندسه شما اون دستور به درستی کار نمیکنه، از همون روش دستی برای ترکیب سطوح استفاده کنید و از روش اتوماتیک استفاده نکنید. البته قبل ازین کار، یبار دیگه روش اتوماتیک رو تست کنیدو عدد مربوط به اندازه لبه ها برای حذف رو خیلی آروم آروم بالا ببرید. مثلا از 2 شروع کنید بعد 2.05 بعد 2.1 و یهو نپرید رو 2.5 .
Hi, thanks for your videos. I have a question for the simulation of a complex model in Abaqus: how can I reach an optimized meshing in the Abaqus? before inputting a CAD model, is it needed to simplify that or it would be possible to reach to optimized model in Abaqus? if there are warning highlighted in the verification of meshing, it would cause wrong results or we can ignore the existence of warnings somehow. Thanks a lot.
Hi. You are welcome. Actually the answer of your question is highly dependent on the geometry itself. for example, in an industrial project, we want to find the stress concentration factor around a hole and also there are other holes in large distances away from the mentioned hole. So we can remove those holes to decrease the complexity and reach an optimum mesh. But this is not a general procedure. About the highlighted elements in the verification checks, according to my experience, most of the time they are not important and don't decrease the accuracy. But if that part undergoes large plastic strains or large deformations, those low quality elements can make a lot of numerical issues. So I suggest you to ask us for an online consultancy session via email to talk about your model. Hence we can give you the exact answer of your questions according to your model.
@@FemexIran thanks a lot sir for your quick reply, I have a knee joint model. I want to do an XFEM analysis. Can you please help me? or is there any video that is meaningful for me?
@@deepakkumaar2637 You are welcome. Yes we have a premium tutorial about XFEM and this is its preview link: th-cam.com/video/NgDmFZluYBs/w-d-xo.html Also you can use our online tutoring and consultancy service. To use this service, you can contact me via email: mirzabozorg71@gmail.com
hi. if you use large values in automatic tool of defeaturing, extra features will be removed that leads to : 1) the mathematical definition of the geometry will have problem that leads to some abnormal issues in generating mesh on the geometry. 2) you will have less control on the element size and mash pattern in the geometry.
A fast-growing and interesting topic! Thank you for this video.
you are welcome.
سلام
خیلی ممنون از آموزش عالی و خیلی مفیدتون.
من یسوالی داشتم همین تکنیک رو برای استخوان فمور اجرا میکنم فقط با افزایش مقدار پارامترهای توپولوژی مقدار زیادی از سطح از دست میره و سپس مش زنی اتفاق نمیوفته و حتی combined دچار ارور میشه برای رفع این مشکل چه کاری باید انجام داد؟
سلام.
خواهش میکنم.
اگر عدد مناسب برای جلوگیری از حذف تعداد زیادی از لبه ها رو پیدا نمی کنید و یا احساس میکنید که برای هندسه شما اون دستور به درستی کار نمیکنه، از همون روش دستی برای ترکیب سطوح استفاده کنید و از روش اتوماتیک استفاده نکنید. البته قبل ازین کار، یبار دیگه روش اتوماتیک رو تست کنیدو عدد مربوط به اندازه لبه ها برای حذف رو خیلی آروم آروم بالا ببرید. مثلا از 2 شروع کنید بعد 2.05 بعد 2.1 و یهو نپرید رو 2.5 .
@@FemexIran ممنون. روش دستی رو توضیح دادین تو فیلم های آموزشی؟
چون من الان مقدارش رو کم کم افزایش دادم بازم مش نمیزنه برام
@@shadighofrani9749 سلام. بله تو قسمت دوم همین آموزش روش دستی هم آموزش داده شده که کاملا قابل کنترله. ویدیو کناریش قسمت دومش هست.
Great...
you are welcome.
Hi, thanks for your videos. I have a question for the simulation of a complex model in Abaqus: how can I reach an optimized meshing in the Abaqus? before inputting a CAD model, is it needed to simplify that or it would be possible to reach to optimized model in Abaqus? if there are warning highlighted in the verification of meshing, it would cause wrong results or we can ignore the existence of warnings somehow.
Thanks a lot.
Hi.
You are welcome.
Actually the answer of your question is highly dependent on the geometry itself. for example, in an industrial project, we want to find the stress concentration factor around a hole and also there are other holes in large distances away from the mentioned hole. So we can remove those holes to decrease the complexity and reach an optimum mesh. But this is not a general procedure.
About the highlighted elements in the verification checks, according to my experience, most of the time they are not important and don't decrease the accuracy. But if that part undergoes large plastic strains or large deformations, those low quality elements can make a lot of numerical issues.
So I suggest you to ask us for an online consultancy session via email to talk about your model. Hence we can give you the exact answer of your questions according to your model.
please provide meshing of pyramid-shaped object
hi.
thank you for your useful comment.
we have a playlist about meshing and partitioning in our TH-cam channel.
also please watch that playlist.
Can we create a crack in this model?
Hi.
If you are talking about the XFEM crack, yes I can create it in the bone.
@@FemexIran thanks a lot sir for your quick reply, I have a knee joint model. I want to do an XFEM analysis. Can you please help me? or is there any video that is meaningful for me?
@@deepakkumaar2637 You are welcome.
Yes we have a premium tutorial about XFEM and this is its preview link: th-cam.com/video/NgDmFZluYBs/w-d-xo.html
Also you can use our online tutoring and consultancy service. To use this service, you can contact me via email: mirzabozorg71@gmail.com
what will happen if we use large values for delete extra features?
hi.
if you use large values in automatic tool of defeaturing, extra features will be removed that leads to :
1) the mathematical definition of the geometry will have problem that leads to some abnormal issues in generating mesh on the geometry.
2) you will have less control on the element size and mash pattern in the geometry.
@@FemexIran thanks
@@makeswaranjenothan5404 you are welcome.
do you have the sketch of this Bone sir?
hi.
I have the CAT part of this bone.
the bone is modeled in the CATIA and its CAT part is imported into the Abaqus.