Semi-tangential rotation and moment

More Khaled Megahed's questions See All

In Abaqus python API, is these formulation give the same results?

If 'P' is the part name The first form: P.ReferencePoint(point=(0, 0, 0)) R= P.referencePoints[l] P.DatumPointByOffset(point=R, vector=(10,0,0)) P.DatumPointByOffset(point=R,...

10 November 2019 4,558 1 View

How to define a rigid link between two points in Abaqus?

I can use rigid body element or MPC constraint (type beam). What the difference between them? Is there any alternative way to define this rigid link? Thanks for reading

09 October 2019 5,750 3 View

Which is faster in writing code; using the built in trigonometric functions or using power series expansions?

Sometimes, for small angle the trigonometric, expression like sin(theta)/theta become produce ill-conditioned.

04 May 2019 5,242 2 View

What is the types of solution of a dynamic problem?

Thanks

03 April 2019 4,289 1 View

What is the Balance laws in term of 2nd Piola-Kirchhoff stress tensor?

The balance laws could be defined in term of Cauchy stress and 1st Piola-Kirchhoff stress tensor as follow https://en.wikipedia.org/wiki/Continuum_mechanics But could I define it in term of...

03 April 2019 6,463 7 View

What is the difference between variation in displacement and virtual displacement?

Also when referring to variation in the work (virtual work), we use virtual rotation not rotation variation? Thanks.

03 April 2019 5,427 11 View

How to perform bifurcation analysis on structures?

I would be grateful for any references or sites. Thanks

03 April 2019 8,869 1 View

How to extract the potential energy of conservative moment?

Some researchers consider rotation variables as work-conjugate with moments, others think that the displacement derivatives is, and others use semi tangential rotation as work-conjugate to...

03 April 2019 5,492 4 View

Do I need to attend a conference if my paper has been accepted for the conference?

Thanks.

03 April 2019 5,242 1 View

At implementing damage model, effective stress-strain curve used should not include softening part. Is it right?

Using damage model includes the relation between the effective and true stress. The true stress-strain curve is the stress-strain curve measured directly from experimental tests which could...

02 March 2019 3,512 12 View

How can I prepare virus for a TEM or SEM imaging?

I have virus (viral hemorrhagic septicemia virus) in suspension and the experiment will not involve cells. What level of TCID50 is preferred?

11 August 2024 3,115 1 View

How to learn more about SPSS and its Application?

I would like to learn more about SPSS and Its application especially in regards to data analysis. Please suggest me how I can learn more about it. Thank you so much.

11 August 2024 9,101 4 View

Can I base on reverse DNA sequences to perform alignment, convert to amino acids and GenBank submission?

I have reverse sequences (AB1 format), can I base on reverse DNA sequences to perform nucleotide alignment, convert nucleotides to amino acids and deposit the sequence in GenBank database?

11 August 2024 5,138 1 View

Baseline drift in HPLC? What causes this?

Hello, Why do i see this baseline drift when i compare my blank (black) to the sample (blue)? Any suggestions as to why this happened? Thank you!

11 August 2024 3,770 4 View

Text-Communication from the M1 Hand Area using BCI—and then there is Elon Musk?

Willett, Shenoy et al. (2021) have developed a brain computer interface (BCI) that used neural signal collected from the hand area of the motor cortex (area M1) of a paralyzed patient. The...

10 August 2024 7,180 0 View

Handling Missing Data and Building a Predictive Model with Incomplete Information ?

I am developing a predictive model for a water supply network that involves 20 influencing points. However, I only have historical data for 10 out of these 20 points. I would like to know how to...

10 August 2024 4,005 2 View

Has anyone applied Python in the field of textile engineering for data analysis, automation, or smart textiles?

I'm currently exploring the application of Python in textile engineering, specifically in areas like data analysis, process automation, and the development of smart textiles. I'm interested in...

10 August 2024 7,429 2 View

Is it possible to use the Fused Deposition Modeling (FDM) to additively manufacture interconnected porous structure generation of >100-200 micrometer?

Usually, additive manufacturing techniques like SEBM, SLS, and SLM are used for interconnected porous lattice structure generation with sizes of >100–200 micrometers. Can the Fused Deposition...

09 August 2024 7,892 0 View

How can I use the cif data obtained from rietveld refinement extracted via gsas2, for microstructural analysis using ETEX software?

09 August 2024 7,718 0 View

How to define an anisotropic material with asymmetric elastic compliance/stiffness matrix in ANSYS APDL?

I need to model an anisotropic material in which the Poisson's ratio ν_12 ≠ ν_21 and so on. Therefore, the elastic compliance matrix wouldn't be a symmetric one. In ANSYS APDL, for TB,ANEL...

09 August 2024 5,048 2 View