Can anyone shed some light on the definion of CPYRA elements in NX-NASTRAN ?

More Nils Wagner's questions See All

What manufacturing restrictions still exist today for laminates?

Many publications use discrete angles and layer thickness for laminates. Is that outdated?

31 December 2018 546 3 View

Where can I find a direct comparison of PML and ABCs like Enquist Majda applied to acoustic benchmarks problems based on finite element models?

Many applications in numerical acoustics occur in exterior domains. The advantage of benchmark problems is a closed form solution (e.g. circumferentially harmonic radiation from an infinite...

08 September 2018 9,301 4 View

What can be defined with the Ansys command RLBLOCK ?

RLBLOCK, 11, 11, 6, 7 (2i8,6g16.9) (7g16.9) 1 6 0.100000000E-02 0.00000000 0.00000000 0.00000000 0.00000000 0.00000000 2 6...

02 March 2018 9,571 1 View

History of inertia relief analysis ?

I am looking for the first publication on inertia relief analysis.

09 October 2017 4,490 0 View

Is there anyone who can share a 3D CAD model of a rod fastening rotor ?

I am looking for a three-dimensional CAD model of a rod fastening rotor. Iges or step format would be appreciated.

09 October 2016 2,481 3 View

What is the major reason to use beam elements instead of shell elements for the stiffeners in stiffened panels?

Finite element models of stiffened panels currently consists of shell elements for the panel and beam elements for the stiffeners. For what reason ?

03 April 2016 9,269 13 View

Who can share a finite element model of a composite shell structure ?

I am looking for an Abaqus input file (*.inp) that contains the following keywords *Shell Section, Composite *Static or *Frequency

11 December 2015 8,571 0 View

Can anyone share a NASTRAN op2 file that contains an OUGV2 displacement output table in SORT2 ?

A NASTRAN OUGV2 displacement table is needed in SORT2 format.

02 March 2015 9,391 3 View

Can anyone provide coordinate measurement machine data of a blisk?

I am interested in the format of CMM data.

31 December 2014 1,895 2 View

How can I find a symmetric positive definite matrix by a rank one modification of an indefinite matrix ?

Let A be a real symmetric indefinite matrix. A is perturbed by a rank-one modification, i.e. B = A + \alpha \diag{c_i}. How can I compute the scalar \alpha such that B is real symmetric positive...

08 September 2014 8,280 0 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence?

I am on the lookout for the Enhanced Yellow Fluorescent Protein (Aequorea victoria) DNA sequence. Does anyone know where I can find it? Thank you in advance

03 March 2021 3,568 1 View

What kind of fluid could I use for a pitfall trap that also does not invalidate molecular testing?

Hi, I want to start testing pitfall trap to obtain ants samples, but I need to conduct molecular analysis on those insects. So, what kind of fluid can I use? Ethanol expires too early and I need...

03 March 2021 5,978 5 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Do we need to write protocol for a second study of a systematic review that has been registered and published?

I have conducted and published a systematic review and meta-analysis research with the topic related to public health and health pomotion (protocol was registed in PROSPERO). Now we want to...

03 March 2021 8,920 3 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 View

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View

Sample dilution for quantitative analysis using ELISA?

If the detection range is in ng/ml but the reference range is in ug/ml for a molecule or protein in serum or plasma .how to dilute and what is the initial volume to be taken for quantitative analysis

02 March 2021 7,670 3 View

Is There Any Feasible Method To Test Fluorescent Compounds Other Than Fluorescence Spectrometers ??

Is There Any Feasible Method To Test The Efficiency Of Fluorescent Compounds Other Than UV Spectrometers ? Suggestions Would Be Appreciated !

02 March 2021 5,785 3 View

How to calculate average trend in maximum annual NDVI from MODIS?

I am wanting to calculate the average trend in maximum annual NDVI in Iceland from 2010-2020 using MODIS MYD13Q1 V6. How would I do this? I have currently inserted the NDVI bands from the MODIS...

02 March 2021 752 2 View

Bharath V G

Pyramid elements are represented by CPYRAM cards in exported Nastran decks. When importing Nastran decks, CPYRA elements are accepted as equivalent to CPYRAM elements.For further refer the mentioned below link: http://knowledge.autodesk.com/support/simulation-mechanical/learn-explore/caas/CloudHelp/cloudhelp/2016/ENU/SimMech-UsersGuide/files/GUID-C1FD2853-5FF4-4200-BB89-B9472FAE4B73-htm.html

Definition:

CPYRA Element

A new five-sided pyramid solid element connecting 5 or 13 grids can be used for any type of analysis. This new element is supported in all types of optimization. Stress and strain are recovered for statics, frequency response and random response. Grid stresses are recovered for statics and frequency response. The results can be printed in the output file and/or post processing files. Stress and strain of pyramid elements can be used in optimization through the DRESP1 entry.