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Ansys Learning Forum › Forums › Discuss Simulation › LS Dyna › to find max velocty of a bullet released from a pressure of 10psi from a cylindr › Reply To: to find max velocty of a bullet released from a pressure of 10psi from a cylindr

April 10, 2024 at 5:00 am
venkyvenkatesh374
Subscriber

 

Hello sir., Thanks for the detailed explanation. 

I followed your suggestion by modelling in two step for the pressure values and could see the bullet speeding down. My mistake was giving constant pressure at the back surface of bullet. 

 

I wanted to carry this analysis for 1.5sec ( this was time taken for the bullet to hit the ground fired horizontally from 1m height – Practicall tested). But if set time to 1.5sec the analysis is taking a very long time. Is there any chance i could carry this analysis in 2-3 steps. in first step i can set the time from 0-0.09secs, in 2nd step i’ll set the inirtial time 0.09 to 0.5secs and in 3rd i’ll set the time to 0.5 to 1.5secs. Is this possible sir?.