Constitutive and friction modeling for accurate springback analysis of advanced high strength steel sheets

Lee, Jeong-Yeon; Barlat, Frédéric; Lee, Myoung‐Gyu

doi:10.1016/j.ijplas.2015.04.005

Cited by 71 publications

(22 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As boundary conditions for the blank, rotations in the x and y axes, as well as translation on the z direction, were fixed. The coefficient of friction (CoF) between the punch and the supports with the specimen was assumed to be 0.12, as is typically used in sheet forming operations [29][30][31]. The contact conditions for the punch-specimen and supportsspecimen were defined using the "forming surface to surface formulation."…”

Section: Materials Modeling and Fe Simulationmentioning

confidence: 99%

Experimental and numerical analysis of the residual stress distribution in a three-point bending test of a TRIP sheet by using ESPI

Díaz-Mendoza

Capilla-González

Martínez-Ramírez

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

View full text Add to dashboard Cite

In sheet metal forming, residual stresses are related to springback and material failure after the deformation process or during service due to load history. Thus, being able to either calculate or measure such stresses is of great importance. This paper aims to evaluate the use of the Electronic Speckle Pattern Interferometry (ESPI) technique to measure residual stresses on TRIP steel. Residual stresses are measured after springback on specimens used in three-point bending tests; where three bending angles are considered. Experiments are compared with Finite Element calculations in terms of punch force, springback angle and residual stresses. Work-hardening and anisotropy parameters, used in simulations, are experimentally determined by the uniaxial tensile test. Results indicate that advanced hardening models are necessary to increase the accuracy of springback predictions. Nevertheless, residual stress calculations show a good correlation with experimental values. Also, it was proved that ESPI is a powerful technique to measure the residual stress on complex surfaces, as the ones typically encountered in sheet forming processes. Future work includes residual stress predictions for different forming processes.

show abstract

Section: Materials Modeling and Fe Simulationmentioning

confidence: 99%

Experimental and numerical analysis of the residual stress distribution in a three-point bending test of a TRIP sheet by using ESPI

Díaz-Mendoza

Capilla-González

Martínez-Ramírez

et al. 2020

J Braz. Soc. Mech. Sci. Eng.

View full text Add to dashboard Cite

show abstract

“…Recently, the homogeneous yield function-based anisotropic hardening (HAH) model [27] was proposed, wherein the plastic behaviour of a metallic material subjected to multiple or continuous strain path changes is described using a collapse of the yield function. A fluctuating term of the HAH model, along with phenomenological or dislocation density-based hardening equations, can depict an anisotropic hardening according to the change in various strain paths [28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Anisotropic Hardening Behaviour and Springback of Advanced High-Strength Steels

Jung

Jun

Lee³

et al. 2017

Metals

Self Cite

View full text Add to dashboard Cite

Advanced high-strength steels (AHSSs) exhibit large, and sometimes anisotropic, springback recovery after forming. Accurate description of the anisotropic elasto-plastic behaviour of sheet metals is critical for predicting their anisotropic springback behaviour. For some materials, the initial anisotropy is maintained while hardening progresses. However, for other materials, anisotropy changes with hardening. In this work, to account for the evolution of anisotropy of a dual-phase steel, an elastoplastic material constitutive model is developed. In particular, the combined isotropic-kinematic hardening model was modified. Tensile loading-unloading, uniaxial and biaxial tension, and tension-compression tests were conducted along the rolling, diagonal, and transverse directions to measure the anisotropic properties, and the parameters of the proposed constitutive model were determined. For validation, the proposed model was applied to a U-bending process, and the measured springback angles were compared to the predicted ones.

show abstract

“…In recent years, the Chaboche model has been applied extensively on account of its good performance in modelling material's mechanical behaviour and has been embedded into ABAQUS® software as one of a few available constitutive models. Many previous studies show that Chaboche model attained a good simulation of mechanical properties for different material. Moreover, it provides much convenience for material mechanics simulation by cutting down the tedious work of programming UMAT.…”

Section: Introductionmentioning

confidence: 99%

Constitutive and damage modelling of H11 subjected to low‐cycle fatigue at high temperature

Luo

Wang

et al. 2017

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

Hot‐work tool steel H11 is extensively applied in extrusion industries as extrusion tools. The understanding of its mechanical properties and damage evolution as well as failure is crucial for its implementation. In this paper, a finite element (FE) model employing Chaboche unified constitutive model and ductile damage rule is proposed to simulate the mechanical responses of H11 subjected to low‐cycle fatigue (LCF). Accumulated inelastic hysteresis energy is adopted to demonstrate the impact on damage initiation and evolution rules. A series of tension and LCF experiments were conducted to investigate H11's mechanical properties and its deterioration processes. In addition, to deeply understand the deformation and damage mechanism, scanning electron microscope (SEM) investigations were performed on the fracture section of gauge‐length part of the specimen after failure. Furthermore, the parameters in both constitutive model and damage rule are identified based on experimental data. The comparison of the hysteresis loop of the first cycle and stable cycle with different strain amplitudes demonstrates that the Chaboche constitutive model provides high precision to predict the evolution of mechanical properties. Based on the reliable achieved constitutive model, LCF behaviour prediction with damage rule was executed successfully using FE model and gains a good agreement with the experiments. It is believed that the proposed FE method lays the foundation of structure analysis and rapid design optimization in further applications.

show abstract

Constitutive and friction modeling for accurate springback analysis of advanced high strength steel sheets

Cited by 71 publications

References 51 publications

Experimental and numerical analysis of the residual stress distribution in a three-point bending test of a TRIP sheet by using ESPI

Experimental and numerical analysis of the residual stress distribution in a three-point bending test of a TRIP sheet by using ESPI

Anisotropic Hardening Behaviour and Springback of Advanced High-Strength Steels

Constitutive and damage modelling of H11 subjected to low‐cycle fatigue at high temperature

Contact Info

Product

Resources

About