Evaluation of limit strain and temperature history in hot stamping of advanced high strength steels (AHSS)

Ma, Bolin; Wan, Min; Li, X.J.; Wu, Xiangdong; Diao, Shen

doi:10.1016/j.ijmecsci.2017.05.026

Cited by 10 publications

(3 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…An algorithmic chart of the solution procedure to compute of FLC based on the modified M-K model is similar to the traditional ones [35,42]. At first step, by considering zero value for all strains and employing an appropriate yield function and hardening law, the effective strain increment can be assumed in the homogeneous region to calculate the strain and stress states.…”

Section: = (2)mentioning

confidence: 99%

See 1 more Smart Citation

Effects of normal and through-thickness shear stresses on the forming limit curves of AA3104-H19 using advanced yield criteria

Nasiri

Basti

Hashemi

et al. 2018

International Journal of Mechanical Sciences

View full text Add to dashboard Cite

In the present study, the effects of normal and through-thickness shear (TTS) stresses are simultaneously considered to predict the generalized forming limit diagram (GFLD) of AA3104-H19 using Yld96 [1], Yld2004 [2] and Yld2011 [3] anisotropic yield criterion. For this purpose, considering the general stress state, including the normal and through-thickness shear stresses on the basis of modified Marciniak-Kuczynski (M-K) model is employed. The Newton-Raphson numerical method is applied to solve the nonlinear equations set and then the forming limit diagram (FLD) and forming limit stress diagrams (FLSD) are computed. At first, the forming limit curves are presented by considering the throughthickness shear stress and then the generalized forming limit curves are presented by applying the normal and through-thickness shear stresses simultaneously. The results show that the through-thickness shear stress has positive sensitivity on the limit strains. Also, the normal stress is more efficient than of throughthickness shear stress on the formability of the plate. Comparison between the results indicates that the predicted limit strains by Yld2011 anisotropic yield function are lower than the Yld96 ones.

show abstract

Section: = (2)mentioning

confidence: 99%

“…The angle of groove can be derived in any step of loading regarding strain increments in the homogeneous region according to [42,45]:…”

Section: = (2)mentioning

confidence: 99%

Effects of normal and through-thickness shear stresses on the forming limit curves of AA3104-H19 using advanced yield criteria

Nasiri

Basti

Hashemi

et al. 2018

International Journal of Mechanical Sciences

View full text Add to dashboard Cite

show abstract

“…In light of global environmental concerns, the automobile industry has become increasingly interested in fuel efficiency and weight reduction. With increasing demand for technological development to achieve high performance and high fuel efficiency, research on the application of advanced high-strength steel (AHSS) for automobile components has progressed [1][2][3][4].…”

Section: Introductionmentioning

confidence: 99%

Investigation of Collision Toughness and Energy Distribution for Hot Press Forming Center Pillar Applied with Combination Techniques of Patchwork and Partial Softening Using Side Crash Simulation

Lee

Jin²,

Suh³

et al. 2022

Metals

View full text Add to dashboard Cite

Various techniques can be applied to center pillars to enhance collision characteristics during side crashes. For instance, patchwork (PW) can be welded to the center pillar to increase its stiffness, and partial softening (PS) can be applied to provide ductility. Side crash tests are conducted by the Insurance Institute for Highway Safety (IIHS) to evaluate collision resistance. However, it is difficult to evaluate collision toughness and energy distribution flow for each automobile component. In this study, a side crash simulation was performed with IIHS instruction. We investigated the effect of hot press forming (HPF) a center pillar with a combination of PW and PS techniques on collision toughness and energy distribution flow. As a result, the role of PW and PS techniques were verified during side crashes. PW improved the strain energy and intrusion displacement by 10% and 7.5%, respectively, and PS improved the plastic deformation energy and intrusion displacement by 10%. When PW and PS were applied to the HPF center pillar simultaneously, a synergistic effect was achieved.

show abstract

Investigation of Necking and Fracture Strain Limits of Medium-Mn Steel Sheet Under Hot Stamping Conditions

Tong,

Zhang,

et al. 2023

Lecture Notes in Mechanical Engineering

View full text Add to dashboard Cite

Evaluation of limit strain and temperature history in hot stamping of advanced high strength steels (AHSS)

Cited by 10 publications

References 33 publications

Effects of normal and through-thickness shear stresses on the forming limit curves of AA3104-H19 using advanced yield criteria

Effects of normal and through-thickness shear stresses on the forming limit curves of AA3104-H19 using advanced yield criteria

Investigation of Collision Toughness and Energy Distribution for Hot Press Forming Center Pillar Applied with Combination Techniques of Patchwork and Partial Softening Using Side Crash Simulation

Investigation of Necking and Fracture Strain Limits of Medium-Mn Steel Sheet Under Hot Stamping Conditions

Contact Info

Product

Resources

About