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  1. Abi786

    Can "Failure indices bond indices" be greater than "Failure indices, Maximum indices

    Greetings My question is regarding Can "Failure indices bond indices" be greater than "Failure indices, Maximum indices ?? [Mat8, Tsai-wu criterion used, in PCOMPG, SB also being used] e.g Failure Indices, Maximum Indices = 0.828 Failure Indices, Ply Indices (All plies) =0.015 Failure Indices...
  2. Abi786

    Sandwich panle: Shell to Solid modeling @Patran/nastran

    Dear All, Greetings Need guidance regarding shell and solid interaction for sandwich panel inner core solid while outer surfaces are shell How the analysis to be proceeded? please help MPC/RBE2 and RSSCON options creating a lot of confusion and secondly, shell and solid nodes same ID can...
  3. Abi786

    .f06 file big size issue [MSC NASTRAN] (how to split)

    Dear All Greetings How to manage / split output file .f06 into multiple to reduce its huge size because of large structures problems and non-linear solutions? [Most available text-editor are not able to open such big files, that's why need to customize the output to reduce file size]...
  4. Abi786

    Puck criteria for Nastran

    Greetings, By chance, does any one knows how to obtain Puck parameters for carbon epoxy lamina especially slope P12c of fracture envelop slope P12T of fracture envelop slope P23c of fracture envelop slope P23T of fracture envelop and other parameters as can be seen in Patran while...
  5. Abi786

    Regarding composite failure [fiber or matrix] in nastran/patran

    Dear All Greetings I have a very basic question regarding composite failure analysis I am using Tsai-Wu failure criteria, Solution seq-101, shell elements i can determine Failure index and stresses in elements My question is I want to know is the failure is because of matrix or fiber...
  6. Abi786

    composite design [ ply sequence + orientation] excel

    Dear All Greetings, By chance, does any one know the good database for composite ply sequence design algorithms, excel sheets etc etc Please do share Advance Thanks AB
  7. Abi786

    How 2 extract a specific column from .f06 file [NASTRAN/PATRAN]

    Hi all, i need to extract strength values from .f06 file for multiple number of plies. For that I need to select only a column Does any one knows how can i do it easily ? If such thing exist in postprocessor, please do tell Much thanks Abi
  8. Abi786

    SRCOMPS in NASTRAN/PATRAN

    Dear All, Greetings I need your help regarding strength ratios calculation in Nastran/patran. Is it possible to use such command / entry by calling them in prepostprocessor Patran, (like bulk entry while we call for analysis , nastran solver) If yes, then how to use it? confuse with the...
  9. Abi786

    Question regarding torsional stiffness in MSC NASTRAN/PATRAN

    Hi, I have a question regarding torsional stiffness and angle of twist in torsional analysis For the reference: I applied the moment to shaft in Z-axis I want to know which value will be giving me angle of twist ? like R3 under maximum displacement in .f06 file ??? Please explain a little...

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