Can you fill a shell volume with SPH in LS DYNA?

Hello All! I'm finding it hard to fill the attached keyword shell volume with SPH elements. Can anybody tell me why? Is it because of the complex geometry? Thanks in advance

08 September 2019 8,174 1 View

Strain Rate in LS DYNA user defined materials?

Hello All! Anybody knows a better way than eps(i) / dt1 to calculate strain rates in a UMAT? I'm trying with eps / dt1 but apparently it is not giving me a proper rate-dependent result. Thanks..

06 July 2019 2,923 8 View

Software other than ANSYS and MCalibration to get Mooney Rivlin Constants?

Hello All! I am using both ANSYS and MCalibration to get model constants for a 9 parameter Mooney Rivlin model using my uni-axial tension test data. These two software give me extremely different...

04 May 2019 3,374 7 View

How to pass strain rate to subroutine in LS Dyna?

Hello Scholars! I'm implementing a user-defined material subroutine in LS Dyna. I intend to build a rate dependent model, so I have to use strain rate as a variable in my model. I'm currently...

01 February 2019 7,967 3 View

Re-using content from previously published own publications?

Hello Scholars! I recently published a paper and wish to draft another manuscript. For the Introductory part of this new manuscript, the intended content is similar to a section I have...

31 December 2018 3,537 0 View

How to select the optimized time step value for FEM solution of a ballistic impact problem?

Hello scholars! I'm trying to simulate ballistic impact on fabric materials. I have made a model and simulated at different velocities. But I'm getting a problem as shown below in the attached...

08 September 2018 6,023 3 View

How to check if my LS Dyna mesh has penetrating elements?

Hello scholars! How do I check if my mesh has penetrating elements? The meshed sections should just touch each other's surfaces but not penetrate. I have designed and meshed and want to know if...

07 August 2018 9,731 3 View

Hello scholars! What's a good material model (eg MAT_015_JOHNSON_COOK) to predict FABRIC material failure by impact loading (Eg. bullet)?

Hello scholars! I'm new to LS Dyna. Trying to figure out what's a good material card in LS Dyna would be best suitable to predict failure of a fabric weave under impact loading. I'm a little...

06 July 2018 7,222 0 View

Can I directly copy text from my old papers for my new papers?

Hello Scholars! I am wondering if I am violating copyrights issues and risking plagiarism if I copy-paste certain amounts of text from my own previously published papers. This is since I am...

01 January 1970 6,189 6 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 upload pdf of my articles published?

How to upload pdf of my articles published?

03 March 2021 2,183 3 View

No title

02 March 2021 324 2 View

Would adding books published in Lambert Publishers increase my RG impact?

There are some books published in LAP. Shall I add it to the RG?

02 March 2021 2,753 1 View

Is it possible to remove a preprint posted by a journal which is already rejected?

As we know many journals are posting preprints (DOI) in advance before the peer-review process. However, there is no guarantee that the preprints get published. The journal's reviewers undergo the...

01 March 2021 5,778 2 View

Is Journal of Agricultural Research a predator?

it is published by Juniper

28 February 2021 354 4 View

How can I publish a manuscript in free or low cost journal with good H-Index?

Dear all I am going to publish my manuscript which is from my thesis in a good H-Index journal but I found them very expensive(I don't have financial support) based on the exchange currency of my...

28 February 2021 7,800 6 View

Which software is better to write systematic review paper?

We have seen some authors use some software to write review paper. As obvious, the study of all published papers concerning our studying field is not possible and these software can help us to...

27 February 2021 6,296 1 View

Can I put a figure that was drawn by Bio-Render in publication paper?

I want to publish paper in journal but I have figures which have drawn with bio-renders, can I put them in the paper or which other software I can use to draw them?

27 February 2021 8,179 1 View

What is the value of Conference Review Paper?

How much value does a review paper carry in a higher study aspirant student's profile which is presented in a Peer Reviewed Scopus Indexed conference?

27 February 2021 2,068 3 View