Ductile Behaviour Characterization of Low Carbon Steel: a CDM Approach

Ajit, K. Priya; Gautam, Abhinav; Sarkar, Prabir

doi:10.5545/sv-jme.2015.3200

Cited by 5 publications

(2 citation statements)

References 14 publications

(22 reference statements)

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“…requires the choice of a variable to identify and measure damage evolution; this is essential for obtaining a good understanding of nonlinear mechanical properties in new advanced steels, and it is mainly restricted by the complexity to be detected in experimental tests [19] and [20]. For practical industrial usage, the importance grows as one must assure a reliable identification of the material parameters using only simple conventional equipment to implement tests, such as uniaxial tension, hardening, among others [21] and [22].…”

Section: Computational and Numerical Analysis Of Ductile Damage Evolumentioning

confidence: 99%

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Computational and Numerical Analysis of Ductile Damage Evolution under Load-Unload Tensile Test in Dual Phase Steel

2018

SV-JME

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Dual-phase (DP) sheet steels are used in the automotive industry. They have a microstructure that consists of a ferrite matrix with dispersed martensite islands giving a combination of good formability and high strength. However, they also exhibit ductile failure caused mainly by high strain incompatibility in both phases, which continues to be an issue of discussion among researchers. To capture the mechanical degradation of a DP sheet steel, this research focuses on the damage characterization using a continuum damage model and loadingunloading uniaxial tensile tests to quantify ductile failure without incurring expensive and difficult mechanical tests, which has the potential to provide an understanding of the identification of damage parameters in the metal-forming industry. By comparing experimental tests and computation simulations, the model presents minimum errors considering triaxiality as a constant value. Key words: continuum damage mechanics, dual-phase steels, load-unload test Highlights • Progressive deterioration of mechanical strength in a dual-phase steel is investigated by means of indirect measurement of elastic modulus. • The development of a hybrid calibration procedure between conventional experimental tests and numerical simulations to predict mechanical response is assessed. • A coupled isotropic J2 plasticity with hardening saturation and a ductile damage model is used. • Initial fracture takes place in a strain localization region.

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Section: Computational and Numerical Analysis Of Ductile Damage Evolumentioning

confidence: 99%

“…In contrast, considering that the strain hardening saturates at the ultimate strength (σ u ) [22], it can be assumed that the equivalent stress (σ eq ) is equal to σ u . Therefore, the damage resistance S can be written as:…”

Section: Fig 5 Evolution Of the Reduction The Real Young's Modulusmentioning

confidence: 99%

Computational and Numerical Analysis of Ductile Damage Evolution under Load-Unload Tensile Test in Dual Phase Steel

2018

SV-JME

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Stress Distribution in the Bolted Flange Connection with Gasket Subjected to Cyclic Loading Condition

Nelson

2024

Lecture Notes in Civil Engineering

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Ductile and Fatigue Behaviour Estimation of Lightweight High-Strength Al 2024

Gautam

Sarkar

Jangid

et al. 2018

Materials Today: Proceedings

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Ductile Behaviour Characterization of Low Carbon Steel: a CDM Approach

Abstract: In this paper, the ductile behaviour of two different low carbon steels, C-Mn-440 and interstitial free high strength (IFHS), is presented using a continuum damage mechanics (CDM)

Cited by 5 publications

References 14 publications

Computational and Numerical Analysis of Ductile Damage Evolution under Load-Unload Tensile Test in Dual Phase Steel

Computational and Numerical Analysis of Ductile Damage Evolution under Load-Unload Tensile Test in Dual Phase Steel

Stress Distribution in the Bolted Flange Connection with Gasket Subjected to Cyclic Loading Condition

Ductile and Fatigue Behaviour Estimation of Lightweight High-Strength Al 2024

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