Experimental and Numerical Analysis of Local Mechanical Properties of Drawn Part

Abstract

In this study, numerical and experimental results of deep drawing process were compared. Drawn part, used in automotive industry was drawn and measured using ARGUS measurement system, which works on a digital image correlation method (DIC). In order to optimize and verify accuracy of a numerical simulation results, this process was modeled in two codes which work on principle of the finite element method (FEM). Two types of FEM codes were used. Code which works on base of both, implicit and explicit time integration scheme, were used for calculation. Results were compared and discussed.

Deformation Properties of Tailor Welded Blank Made of Dual Phase Steels

“…Analysis objective was to observe the strain properties of the B-pillar reinforcement drawn from the simple blank during crash test (side crash test of the automobile). Simulation software Dynaform (Slota et al, 2014), enabling this type of analysis, was used for definition of the position of B-pillar reinforcement with the frame on the boundary, marked with red colour in Fig. 11 and 12.…”

“…They are used for forming of parts with special strength, stiffness and operational deformation properties (Kinsey and Wu, 2011;Evin and Tomáš, 2012;Bílik et al, 2015;Fracz et al, 2014;Reisgen et al, 2012). With the use of materials with different stress-strain properties or different thicknesses we can achieve higher strength and stiffness while lower weight of the drawn parts or even the whole construction (Slota et al, 2014;Evin, 2013;Fracz et al, 2013;Bílik et al, 2010;Evin et al, 2015;Merklein et al, 2014). On the other hand, these differences cause uneven material flow into the die area, which result in several forming problems, e.g.…”

Effect of Planar Anisotropy on the Properties of Workpieces From Tailor Welded Blanks of Dual-Phase Steel

“…This meets the basic requirements for a welded joint. However, the weld itself and the change in the properties of the material in the heat-affected zone of the TWB negatively affect the formability and flow of the material during deformation [1,5,6].…”

Deep-Drawing Process Simulation for Tailor-Welded Blanks with an Elastic Blankholder

“…Within the framework of this study, the experimental blankholder system with an elastic blankholder and an adjustable distribution of blankholder forces was used. Finite element method (FEM) simulation is instrumental to the study of TWB formability whereby it is possible to determine the values and points of application of the blankholder forces [12][13][14]. The FEM simulation results carried out via the simulative LS-Dyna software are presented in this article.…”