High‐resolution simulation of microstructures in dual‐phase steel

Scherff, Frederik; Goldschmidt, Florian; Scholl, Sebastian; Diebels, Stefan

doi:10.1002/pamm.201610184

Cited by 4 publications

(1 citation statement)

References 5 publications

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“…The structure-property relationship of TM steels can be simulated by using an isotropic yield function [1]. However, with treating the ferritic phase as isotropic, the directionality of the mechanical properties is not taken into account.…”

Section: Introductionmentioning

confidence: 99%

Effect of crystallographic orientation in modelling of anisotropic plasticity with an analytical yield function

Neuhaus

Srivastava

Scholl

et al. 2019

Proc Appl Math and Mech

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The mechanical properties of thermomechanical rolled low alloyed (TM) steels highly depend on their microstructure, which is formed during the production processes of the metal plate. Additionally, an elastic-plastic anisotropy is encountered in these materials due to the texture of the ferritic grains. Hence, the material exhibits different stress-strain curves in rolling direction (RD), normal direction (N D) and transverse direction (T D). The aim of the present work is to include plastic anisotropy of the body-centered cubic, ferritic phase in an already existing microstructure-based model for the elasto-plastic deformation of TM steels and thereby, to widen the scope of such a model to a broader range of materials. The following contribution discusses the results of simulations on single crystals and bicrystals by using an analytical yield function in order to accomplish a deeper understanding of the behaviour and applicability of an analytical, anisotropic yield function on grain level to describe anisotropically deforming metals.

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Section: Introductionmentioning

confidence: 99%

Effect of crystallographic orientation in modelling of anisotropic plasticity with an analytical yield function

Neuhaus

Srivastava

Scholl

et al. 2019

Proc Appl Math and Mech

Self Cite

View full text Add to dashboard Cite

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Numerical simulation of dual-phase steel based on real and virtual three-dimensional microstructures

Scherff

Gola

Scholl

et al. 2021

Continuum Mech. Thermodyn.

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Dual-phase steel shows a strong connection between its microstructure and its mechanical properties. This structure–property correlation is caused by the composition of the microstructure of a soft ferritic matrix with embedded hard martensite areas, leading to a simultaneous increase in strength and ductility. As a result, dual-phase steels are widely used especially for strength-relevant and energy-absorbing sheet metal structures. However, their use as heavy plate steel is also desirable. Therefore, a better understanding of the structure–property correlation is of great interest. Microstructure-based simulation is essential for a realistic simulation of the mechanical properties of dual-phase steel. This paper describes the entire process route of such a simulation, from the extraction of the microstructure by 3D tomography and the determination of the properties of the individual phases by nanoindentation, to the implementation of a simulation model and its validation by experiments. In addition to simulations based on real microstructures, simulations based on virtual microstructures are also of great importance. Thus, a model for the generation of virtual microstructures is presented, allowing for the same statistical properties as real microstructures. With the help of these structures and the aforementioned simulation model, it is then possible to predict the mechanical properties of a dual-phase steel, whose three-dimensional (3D) microstructure is not yet known with high accuracy. This will enable future investigations of new dual-phase steel microstructures within a virtual laboratory even before their production.

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Crystal plasticity study on stress and strain partitioning in a measured 3D dual phase steel microstructure

Diehl

Shanthraj

et al. 2017

Phys Mesomech

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High‐resolution simulation of microstructures in dual‐phase steel

Cited by 4 publications

References 5 publications

Effect of crystallographic orientation in modelling of anisotropic plasticity with an analytical yield function

Effect of crystallographic orientation in modelling of anisotropic plasticity with an analytical yield function

Numerical simulation of dual-phase steel based on real and virtual three-dimensional microstructures

Crystal plasticity study on stress and strain partitioning in a measured 3D dual phase steel microstructure

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