id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-103280-kf6mqv4e	Bergs, Thomas	Determination of Johnson-Cook material model parameters for AISI 1045 from orthogonal cutting tests using the Downhill-Simplex algorithm	2020-12-31		.txt	text/plain	7779	455	45	title: Determination of Johnson-Cook material model parameters for AISI 1045 from orthogonal cutting tests using the Downhill-Simplex algorithm Orthogonal cutting tests on AISI 1045 steel have been conducted on a broaching machine tool over a range of different cutting speeds and undeformed chip thicknesses to set an experimental database. These results motivated for the development of a methodology capable to determine material model parameters robust and inversely from the machining process, which can be used with lower computational effort. By using the Downhill-Simplex-Algorithm, it was possible to determine material model parameters within 17 iterations and achieving an average deviation between the experiment and the simulations below 10 %. Therefore, a sequential approach, starting with an initial set of machining simulation based on a design of computer experiments (DOCE) and analysis of the numerical results in terms of cutting forces and temperatures was used.	./cache/cord-103280-kf6mqv4e.txt	./txt/cord-103280-kf6mqv4e.txt