Impact machine. Should accelerometer and load cell give same impact force value?

I am designing a helmet impact machine. Does the accelerometer placed inside helmet and load cell placed under anvil give the same peak force value?

09 October 2019 8,365 4 View

Which material property plays a significant role in impact absorption?

The material should be stiff, tough or Young modulus should be more or which property should be significant for excellent energy absorption?

09 October 2019 2,054 4 View

Time step too small error in explicit dynamics?

Can any one help with this error in ANSYS explicit dynamics? I am striking a bullet with velocity 800 m/s on a kevlar plate 1cm thick. I am calculating time by dividing 0.01 m with 800m/s.

09 October 2018 9,389 1 View

ANSYS Compostie Cure Simulation Tool?

I wanted to ask is ACCS (Ansys Composite Cure Simulation) tool only for curing. What if we cool the composite? Will we use the ACCS tool for cooling? Actually I cooled the composite from 120 to...

07 August 2018 8,296 1 View

Which turbulence model is best to predict reattachment length of flow over a forward facing step?

I have few questions if any one can add to it: 1. I want to run a simulation with experiments done in free surface water tunnel. Which model you think can predict good reattachment length. 2. I am...

10 November 2015 8,575 35 View

Any advice on reattachment length forward facing step?

I am trying to measure the reattachment length in Adverse pressure gradient flows over a forward facing step. Which RANS model predicts reattachment length formed at the step consistent with...

09 October 2015 1,419 7 View

What is the difference in Finite difference method, Finite volume method and Finite element method?

What is the major difference in FVM, FDM and FEM? Please explain in detail and in simple words. Which method is used in softwares like fluent?

09 October 2015 3,002 21 View

What is the difference between first order upwind schemes and second order and higher schemes?

03 April 2015 9,087 16 View

How can I improve Mesh quality in T grid?

I generated mesh using T Grid. Now How can I improve quality using Tgrid like global smoothing of mesh like that in ICEM. I have tried auto node movement but not sure how to use that. Moreover I...

03 April 2015 7,256 1 View

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View

LOAD DISPLACEMENT CURVES Stiffness increasing in ANSYS non linear analysis. HOW CAN I CORRECT IT?

Hi. I am doing non linear FE analysis using a new material beam under flexural 2 point loading using ANSYS. I have defined a bilinear material model. The solution has converged. In results I am...

01 March 2021 9,911 3 View

How to show arrows over the streamlines in CFD-post?

I follow this to make streamlines like the photos attached below: (software- CFD post-processing) First I plot the 2D streamline over a surface "streamline 1". them I plot a vector by the...

01 March 2021 8,668 3 View

Which one is easier and better at modeling slender masonry structures? ANSYS or ABAQUS?

I need to model masonry and reinforced concrete minarets for my MSc thesis. Which one is easier and better at modeling slender masonry structures? ANSYS or ABAQUS? (Or any other program for just...

01 March 2021 736 3 View

Can Virtual Servers (remote dekstop manager) run heavy ANSYS Fluent CFD simulation ?

I have a virtual machine. My host Pc specs are not that good thats why i went for virtual servers. so basically my host pc has 8gb of ram with nvidia quadro k2200 4Gb DDR5 GPU ,processor intel...

01 March 2021 8,415 1 View

How to increase mesh quality of a cfd model in ansys fluent?

How can one improve mesh skewness, orthogonality, aspect ratio?

28 February 2021 7,730 3 View

How can we simulate an hyperelastic-viscoelastic behavor with Ansys APDL?

I am working on modeling and simulation of biomecanical material behaviour, I have succeded on simulating skin using anisotropic hyperelastic material, on APDL and in our lab's finite element...

28 February 2021 552 3 View

Complex wave form in ANSYS?

Is there a way to input wave speed in a complex form on ANSYS? The wave speed I need to assign a material is 325(1+0.11i) however I have been unable to do this thus far. Failing that, is there...

27 February 2021 5,969 1 View

LEDs on Vis Light photo degradation of MB water sol via N doped TiO2 in a mini flume?

Good day to all, I have no experience with light emitting diodes. I am building a glass mini flume to demonstrate the photo degradation of Methylene Blue in water running over self cleaning...

26 February 2021 4,026 5 View