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Pranav Hari

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Everything posted by Pranav Hari

  1. Hi GAJENDRA KUMAR NHAICHANIYA Thanks for the update. I will try and update you with a better solution.
  2. Hi GAJENDRA KUMAR NHAICHANIYA In your model, you have given a thickness of 0.1 mm. Can you please confirm this whether its 1mm or 0.1 mm.
  3. Hi GAJENDRA KUMAR NHAICHANIYA Some modifications have been done. Check whether this helps you. 1. The lower thickness value may cause it to vibrate due to the imposed displacement. So it has been increased 2. A negative value is provided in the gravity curve to denote that the gravity is acting in the - Y axis 3. constrains were provided to the base to restrict the movement in other direction expect in X flask.hm flask_0000.rad flask_0001.rad
  4. Hi bn_abhi This is due to wrongly assigned property for shell elements. Check whether you have used the card image PSHELL for shell elements and PSOLID for solid elements
  5. Hi mpvnaresh You can use 2D > elem offset for creating a stack of solid elements If you want to get better results it is advisable to use exactly the same material properties you are using.
  6. Hi linhan108888 Try opening the HyperWorks 2017 student edition application.
  7. Hi dineshagrawal115@gmai It is not paid service. If you are a student, apply with your institution details and it will be approved
  8. Hi Register here and once the admin approves, you can access it https://certification.altairuniversity.com/login/index.php
  9. Hi Saravanan R Here limited no: of nodes means finite no of nodes. Any continuous object has infinite degrees of freedom and it is not possible to solve the problem in this format. The Finite Element Method reduces the degrees of freedom from infinite to finite with the help of discretization or meshing. All of the calculations are made at a limited number of points known as nodes. The entity joining nodes and forming a specific shape such as quadrilateral or triangular is known as an Element. To get the value of a variable (say displacement) anywhere in between the calculation points, an interpolation function (as per the shape of the element) is used The word "interpolate" in general means to "insert (an intermediate value or term) into a series by estimating or calculating it from surrounding known values". The same thing is done in FEA also as mentioned above This is clearly mentioned in this e-book. Have a look at this (https://altairuniversity.com/free-ebooks-2/free-ebook-practical-aspects-of-finite-element-simulation-a-study-guide/). Refer page 21-33 where it describes how the results are Interpolated from a few calculation points
  10. Hi mfr You can use elem offset option from 2D> elem offset. Then you have to create faces along the grey colour mesh (turbine solid mesh) and use that to create offsets. Similarly, you can create all other layers ( orange, blue..)
  11. Hi dajeet You can apply pressure on an edge line as well. Change the selection to free edges and select the edge line.
  12. Hi NOOR ALAM ANSARI From the user profile window, change the Radioss version to 2017 and try again
  13. Hi j8jang That depends on whether your material goes into a non-linear condition or not. According to tsai-wu criterion, the material is assumed to be elastic until the Tsai-Wu criterion is fulfilled. After exceeding the Tsai-Wu criterion limit the material becomes non-linear. If the material exceeds the elastic state and passes into non-linear state then it is compared to a maximum value F(Wp) varying in function of the plastic work during work hardening phase. so here for comparing with F(Wp) you need to input "b", plastic hardening parameter and "n", plastic hardening exponent. So in your case, I feel its better to input "b", plastic hardening parameter and "n", plastic hardening exponent.
  14. Hi Santhosh Ravichandran Refer tutorial OST: 1085, 1095 from OptiSruct help and check whether it helps.
  15. Hi rahul rao Is it possible to share the model file?. You can use secure link if needed https://ftin.india.altair.com:8443/filedrop/~Ma3TaE 
  16. Hi AdrianoP I suggest you can go through the thermal e-book which will give you a better understanding https://altairuniversity.com/free-ebook-thermal-analysis-with-optistruct/
  17. Hi mfr Did you mean how to model a three-layered thermal barrier coating? Also can you please explain what type of analysis you are about to perform.
  18. Hi mabefa After creating the load step, click on "edit" and then you have an option for entering temp load collector.
  19. Check this video also. See the load step creation after 8:00 min
  20. Hi Pressure loads are always applied normal to surface irrespective of the feature. you can either select the element along the curved surface or if you are using 3D element then select the face and apply.
  21. Hi j8jang I think you can use Mat law 12 in Radioss which describes a solid material using the Tsai-Wu formulation that is usually used to model composites. This material is assumed to be 3D orthotropic-elastic before the Tsai-Wu criterion is reached. if you are using shell elements then you can use Mat law 25 which describes the composite shell and solid material using the Tsai-Wu formulation Refer Radioss reference guide where you will get more information regarding these material laws and the mechanical properties to be given as input. Also, have a look at the other composite material laws in Radioss
  22. Hi j8jang Due to wrongly assigned property cards to components, RADIOSS throws this error. Please check and ensure whether the components are assigned with the correct property cards. Assign PART card image to components and NONE to rigids. Also, try the below suggestion and check if you still get error ID 286: Goto 2D page>> ELEMTYPES>> make sure for 2D and 3D are as shown in the below image. If not change the tria3=SHELL3N and quad4=SHELL4N.
  23. Hi JJJ The hardware and platform recommendations for Altair products are shared above in previous replies. Have a look at that.
  24. Hi iwinphilip It depends on the type of optimization you need to perform. For optimization you need to organize the geometry in to design and non-design space. The non-design space resembles the constraining area where no design changes takes place. Have a look at the e-book about Optimization in which it is explained in detail. ( https://altairuniversity.com/free-ebooks-2/free-ebook-practical-aspects-of-structural-optimization-a-study-guide/) Also refer OptiStruct online help where you will get tutorials on optimization.
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