Numerical and Experimental Determination of Cut-edge after Blanking of Thin Steel Sheet of DP1000 within Use of Stress based Damage Model

Behrens, Bernd‐Arno; Bouguecha, Anas; Vucetic, Milan; Krimm, Richard; Hasselbusch, Tobias; Bonk, Christian

doi:10.1016/j.proeng.2014.10.200

Cited by 12 publications

(6 citation statements)

References 1 publication

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“…Standard simulations based on Finite-Elemente (FE) method use simplified calculation algorithms to describe stress dependent material failure [2]. Due to the strong temperature increase in shear cutting [3], it is necessary to develop and integrate a temperature dependent failure model, so that the numerical representation of these processes can accurately predict the temperature influence on material failure [4]. The classical Mohr-Coulomb (MC) model predicts material failure at a certain combination of normal stresses 𝜎 1 , 𝜎 2 and 𝜎 3 as shown in [5]:…”

Section: State Of the Artmentioning

confidence: 99%

Determination of temperature dependence in Modified-Mohr-Coulomb failure model for process simulation of shear cutting

Behrens

Brunotte

Wester

et al. 2022

IOP Conf. Ser.: Mater. Sci. Eng.

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Shear cutting is a proven process for chip-less separation of metals and used as a cost-effective production method. The process design of shear cutting is usually based on time and cost intensive experimental tests. Therefore, numerical depiction of the process offers great potential to reduce these practical tests. An important aspect hereby is the representation of temperature dependency of the material. However, the classical Modified-Mohr-Coulomb (MMC) failure model does not depict this effect directly. Therefore, the objective of this paper is to investigate the temperature dependency of MMC failure model for simulating shear cutting. The required data is obtained from tensile tests on miniaturised specimens under variation of temperature on dual-phase steel DP1000, using an additional optical measurement system. To determine stress triaxiality, Lode angle parameter and plastic strain at failure, the experimental tests are simulated using the Finite-Element simulation program ABAQUS. The MMC failure surfaces are fitted using the least squares method in Matlab. With this approach, temperature dependent MMC failure model was built to be used for shear cutting simulation of DP1000 steel.

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Section: State Of the Artmentioning

confidence: 99%

Determination of temperature dependence in Modified-Mohr-Coulomb failure model for process simulation of shear cutting

Behrens

Brunotte

Wester

et al. 2022

IOP Conf. Ser.: Mater. Sci. Eng.

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“…A methodology to get high strain and strain rate reliant on substance flow stress information utilizing blanking test and finite element modeling is shown. Bernd-Arno Behrens, et al [9], the investigate concentrates on blanking process of slight steel sheet of Dogal1000DP +Z100MBO. Experimental and numerical studies on the sheared edge geometry and the cutting force of the effect of punch speed and clearance were done.…”

Section: Introductionmentioning

confidence: 99%

An Investigation of the Shearing Forces Using Blanked Carbon Steel Sheets

Jasim

Khleif

2019

NJES

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An important challenge confronted when using blanking to machine sheet metal is the treatment of the shearing force in demand for great strength and heavy stock. One of the methods used to decrease the force wanted is the increase of a punch shear angle. In this work, experiments were conducted to study the effect of shear angle for blank has a diameter (50 mm) on shear force of a low carbon steel sheet (AISI 1008). Low carbon steel is a very common material used in fabrication of sheet metal components, with thickness of (0.5 mm). Tools used in the blanking tests were one traditional flat end punch and four different bevel sheared rooftop punches, which rooftop punches were compared to. and it (0°, 5°, 10°, 15°, 20°) a punches diameter (49.95 mm) by clearance (0.025mm) for each side , with a blanking speed (500mm/min). A special blanking die set is designed and manufactured and was a blank cut by a hydraulic press whose capacity (20 ton). The results showed that the blanking forces of (AISI 1008) low carbon steel metal could be decreased radically with best bevel punch geometry. Using (10°) shear angle at the punch end, the cutting forces decreased up to (90%) compared to the ones of the traditional flat end tool

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“…Mole et al [19] proposed a new FEM method to optimize the blank shape. Behrens et al [20] focused on the effect of speed and clearance to the blank load and sheared surface geometry distribution. Soares et al [21] examined the effect of clearance on the sheared edge quality of thick sheets (8 mm) by FE-simulations.…”

Section: Introductionmentioning

confidence: 99%

The Effect of the Thickness-to-Die Diameter Ratio on the Sheet Metal Blanking Process

Engin¹,

Eyerci̇oğlu²

2017

SV-JME

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Numerical and Experimental Determination of Cut-edge after Blanking of Thin Steel Sheet of DP1000 within Use of Stress based Damage Model

Cited by 12 publications

References 1 publication

Determination of temperature dependence in Modified-Mohr-Coulomb failure model for process simulation of shear cutting

Determination of temperature dependence in Modified-Mohr-Coulomb failure model for process simulation of shear cutting

An Investigation of the Shearing Forces Using Blanked Carbon Steel Sheets

The Effect of the Thickness-to-Die Diameter Ratio on the Sheet Metal Blanking Process

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