Investigations of strain rate sensitivity under different stress triaxialities for DC04

Lorenz Maier, Edgar Marker, Fabian Schulz, Wolfram Volk

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Understanding the strain rate sensitivity of materials is essential for predicting their behavior in sheet metal forming. While uniaxial tension tests are state of the art in characterizing this sensitivity, the deformation response of materials under different loading conditions can significantly deviate from uniaxial behavior. This paper presents a comprehensive study of the strain rate sensitivity of DC04 through a series of experimental investigations with different strain rates. In addition to uniaxial tension tests, the study investigates the strain rate sensitivity under shear and plane strain tests, providing a comprehensive analysis of strain rate sensitivity across different loading scenarios. The investigation aims to understand how the material responds to varying deformation rates, focusing on characterizing their deformation behavior under various loading conditions. The authors collected experimental data from the material with a DIC system. They analyzed it to derive material-specific parameters that describe their strain rate-dependent responses depending on the stress state. To explain this, the authors calibrated three models: Johnson Cook, Cowper Symonds, and Huh Kang.

Original languageEnglish
Title of host publicationMaterial Forming, ESAFORM 2024
EditorsAnna Carla Araujo, Arthur Cantarel, France Chabert, Adrian Korycki, Philippe Olivier, Fabrice Schmidt
PublisherAssociation of American Publishers
Pages2124-2133
Number of pages10
ISBN (Print)9781644903131
DOIs
StatePublished - 2024
Event27th International ESAFORM Conference on Material Forming, ESAFORM 2024 - Toulouse, France
Duration: 24 Apr 202426 Apr 2024

Publication series

NameMaterials Research Proceedings
Volume41
ISSN (Print)2474-3941
ISSN (Electronic)2474-395X

Conference

Conference27th International ESAFORM Conference on Material Forming, ESAFORM 2024
Country/TerritoryFrance
CityToulouse
Period24/04/2426/04/24

Keywords

  • Deep Drawing
  • Sheet Metal Forming
  • Strain Rate Sensitivity
  • Stress Triaxiality

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