Experimental Methods for Characterizing of Sheet Metals at High Strain Rates

Lothar W. Meyer; Shawky Abdel-Malek; Norman Herzig

doi:10.4028/www.scientific.net/KEM.473.474

Paper Titles

Transformation in Austenitic Stainless Steel Sheet under Different Loading Directions
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On the Study of Constitutive Parameter Identification of Advanced Yield Criteria
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Development of a Microscopic Damage Model for Low Stress Triaxiality
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Numerical Simulation of Forming Limit Test for AZ31 at 200°C
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Experimental Methods for Characterizing of Sheet Metals at High Strain Rates
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Assessment of Damage Models in Sheet Metal Forming for Industrial Applications
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Modification of the Mechanical Anisotropy in Extruded AZ31 Sheets
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Modeling Laser Heating for Roller Hemming Applications
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Geometrical Modeling of the Sheet Metal Parts in the Incremental Shrinking Process
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 473Experimental Methods for Characterizing of Sheet...

Experimental Methods for Characterizing of Sheet Metals at High Strain Rates

Abstract:

Beside tension tests and measuring of Lankford coefficients (r-values), compression tests on small cubes in the sheet plane over a wide range of strain rates are also performed using special devices. The material behavior under shear loading is measured according to Miyauchi using appropriate equipment with the application of optical measurement of speckle strain field. A biaxial tension/tension stress state can be realized in the layer compression test. Through the compression, shear and layer compression tests, large deformations are reached, which can not be measured in the tension test due to necking. These four test types are performed not only quasi-statically but also quasi-dynamically on a servo hydraulic machine and under impact loading in a drop weight machine and rotary tensile impact tester (flywheel) with a precise measurement of force and displacement to determine the strain rate dependency of the investigated materials. Extra points of the yield loci can be measured in the plane strain tension test using a specimen ratio of B/L ≥ 20.

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Periodical:

Key Engineering Materials (Volume 473)

Pages:

474-481

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.473.474

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Online since:

March 2011

Authors:

Lothar W. Meyer, Shawky Abdel-Malek, Norman Herzig

Keywords:

Biaxial Test, Drop Weight, Flywheel, High Strain Rate, Layer Compression Test, Miniature Compression Test, Miyauchi Shear Test

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References

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