Quasi-Static Simulations using Implicit LS-DYNA ®
Quasi-static tests that are part of the federal regulations such as FMVSS 216[1] and FMVSS 207/210[1] is predominantly simulated using LS-DYNA’s explicit solver. To be able to produce results in a reasonable time, mass-scaling and time-scaling are employed for these simulations, thereby the physics of the problem gets compromised. This paper demonstrates LS-DYNA’s Implicit capabilities to solve quasi-static problems in a reasonable amount of time, without compromising physics. Recent development and improvements to the implicit solver enables us to solve problems such as this, accurately and with a run turn-around time that is inside the reactionary period of the design community. Two popular tests – Roof-Crush and Seat-Pull tests were chosen for this exercise.
https://www.dynalook.com/conferences/14th-international-ls-dyna-conference/simulation/quasi-static-simulations-using-implicit-ls-dyna-r/view
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Quasi-Static Simulations using Implicit LS-DYNA ®
Quasi-static tests that are part of the federal regulations such as FMVSS 216[1] and FMVSS 207/210[1] is predominantly simulated using LS-DYNA’s explicit solver. To be able to produce results in a reasonable time, mass-scaling and time-scaling are employed for these simulations, thereby the physics of the problem gets compromised. This paper demonstrates LS-DYNA’s Implicit capabilities to solve quasi-static problems in a reasonable amount of time, without compromising physics. Recent development and improvements to the implicit solver enables us to solve problems such as this, accurately and with a run turn-around time that is inside the reactionary period of the design community. Two popular tests – Roof-Crush and Seat-Pull tests were chosen for this exercise.
12-C_Simulation_112.pdf
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