Hassan Iftekhar

10 Questions 16 Answers 0 Followers

Questions related from Hassan Iftekhar

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?

10 October 2019 2,153 4 View

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?

10 October 2019 8,466 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.

10 October 2018 9,558 1 View

Solid layered section is not allowed in current analysis (ANSYS error)?

I am striking a bullet on a kevlar plate 1 cm thick. I have linked a plate designed in acp with explicit dynamics I have turned on the Beta options. I am facing error "solid layered section is...

10 October 2018 8,731 0 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...

08 August 2018 8,484 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...

11 November 2015 8,652 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...

10 October 2015 1,494 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?

10 October 2015 3,097 21 View

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

Please help me in understanding these upwind schemes in fluent?

04 April 2015 9,432 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...

04 April 2015 7,354 1 View