Non linear buckling analysis with imperfection?

hello every one good day. i am using abaqus to perform a non linear buckling analysis in order to match it the experimental buckling load ,i have to use imperfection in my model but Increased the...

04 May 2017 8,835 4 View

Non linear buckling analysis with imperfection?

Hello Everyone , I am performing a buckling analysis on laminated composites shells. The load I am getting in Non Linear Riks method is greater than the Eigen Value Load . Can someone help me with...

04 May 2017 2,292 2 View

Square and filleted square?

09 October 2016 4,138 1 View

Delamination buckling load and depth position of delamination?

09 October 2016 2,248 2 View

Generation of MESH in cylindrical shell in abaqus?

31 December 2015 5,352 6 View

How can I generate a cuvred panal type of mesh in abaqus?

09 October 2015 7,140 2 View

What is the correct stacking sequence of Composite lay? up[45/0/-45/0/45/0/-45/0/45/0]2s?

hello every one... i m modeling composite laminates consist of an UPPER and Lower part which are tied through a cohesive elements, the stacking sequence is [45/0/-45/0/45/0/-45/0/45/0]2s... Where...

09 October 2015 8,667 6 View

How do I solve my problem when creating zero thickness cohesive elements?

09 October 2015 9,658 3 View

What is the most efficient way to create ZERo thickness cohesive elements?

hello every one.... i m modeling delamination using a zero thickness cohesive element in Abaqus . consider two plates and a zero thickness cohesive element in between them.. i create an orphan...

09 October 2015 7,399 8 View

Can anyone help me with the difference between solid and continuum shell layup?

08 September 2015 5,531 1 View

How to repeat an operation on an atom selection for multiple times in PyMol?

Hi, I am trying to construct a multi-layer fibril structure from a single layer in PyMol by translating the layer along the fibril axis. For now, I am able to use the Translate command in PyMol...

02 March 2021 4,569 4 View

What analysis to choose with a large neste dataset and clearly skewed or kurtotic distributions?

Hello! I have a dataset of n=3000 nested within 8 countries with approximately 200 or 400 responses in each country. I originally planned to perform multilevel modelling with 4 dependent variables...

02 March 2021 6,865 1 View

How to plot the probability paper of Gumbel distribution using R programing?

In R-studio, there are many commands of Gumbel package. Arguments are also different. I`m asking about the alpha parameter of the Copula which must be greater than 1. If this is the one used to...

25 February 2021 5,229 3 View

Are there methods for automatically mapping floodplains, fans and terraces?

I want to map these river geoforms with as little subjectivity as possible. I have a high resolution DEM generated by drone data.

22 February 2021 7,800 3 View

Do I need to introduce HFD to ob/ob mice to obtain a T2DM model?

I am planning to work on T2 diabetic animals and check the efficacy of probiotics. My initial plan is to fed B6 animals with HFD for a while. But now, I have the chance to work on ob/ob mice. My...

18 February 2021 6,896 3 View

What are the options for global scale hydrology DEM?

Hello, I am working on a global scale hydrology GIS project delineating global watersheds and doing some data analysis. I have in the past used hydro1K from the USGS that cover the entire world....

18 February 2021 5,109 5 View

Can I use a categorical covariate in a Generalized Linear Model in SPSS v.26?

Hello everyone, hope you are well. I am planning to use a Generalized Linear Model in SPSS. I would like to add gender to the model as a covariate, however from what I have read, only continuous...

14 February 2021 8,937 4 View

Mixed ANOVA or Multilevel modeling?

Hi everyone, I'm having some questions about choosing the right test for my experiment and I hope I can find help here! Here are the settings of the experiment: 1. participants are randomly...

14 February 2021 1,028 4 View

Defining mixed model with repeated measures data?

HI all, I have been working with daily diaries data ( 6 emotions of which 3 positive and 3 negative) were assessed for 30 days. These observations (1level data) are then nested within subjects...

13 February 2021 1,810 3 View

What non-parametric alternative can I use for a repeated-measures ANOVA for 2 groups and 2 timepoints?

Hello, I have a question regarding non-parametric alternatives for a RM-ANOVA. In my study I had two groups that were measured on two timepoints (pre-post measurements only). I was planning to...

11 February 2021 8,599 7 View