Effects of the Phase Content on Spallation Damage Behavior in Dual-Phase Steel

Yang, Yang; Wang, Haimin; Wang, Can

doi:10.1007/s11665-021-05811-3

Cited by 4 publications

(3 citation statements)

References 46 publications

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“…Moreover, the V m of DP steels is the key factor which determines the balance between the strength and fracture strain [162]. There have been several studies about the influence of V m on mechanical properties of DP steels [157,[162][163][164][165][166][167][168][169][170][171][172][173][174][175][176][177][178]. For example, Chang and Preban [157] investigated the effects of d f and V m on the tensile properties of DP steels.…”

Section: Annealing Temperaturementioning

confidence: 99%

Processing, microstructure adjustments, and mechanical properties of dual phase steels: A review

Kalhor

Taheri

Mirzadeh

et al. 2021

Materials Science and Technology

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In this review, effects of initial microstructure before intercritical annealing and processing routes of dual phase (DP) high strength steels are discussed. Prior-applied deformation processes as cold rolling and severe plastic deformation (SPD) including their impacts on mechanical properties of DP steels are described. Influences of heating rate, recrystallization of ferrite, nucleation and grain growth of austenite on the microstructure evolution are also presented. The intercritical annealing and thermomechanical processes of DP steels are comparatively outlined. Furthermore, post-intercritical annealing treatments, i.e., tempering, bake hardening, strain and quench aging are argued. Effects of key alloying elements on the microstructure and mechanical properties of DP steels are briefly summarized. A further development of DP steels can properly benefit from this extensive review.

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Section: Annealing Temperaturementioning

confidence: 99%

Processing, microstructure adjustments, and mechanical properties of dual phase steels: A review

Kalhor

Taheri

Mirzadeh

et al. 2021

Materials Science and Technology

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show abstract

“…Spallation strength is an important indicator of material failure under impact loading. 26 Therefore, understanding the spallation strength of HTPB under various temperatures and impact loadings could assist in design that improves the shock resistance of the materials. Over the past few decades, MD simulation emerging as an influential method has been used to investigate the thermal, mechanical, and dynamic properties of material systems comprehensively which allows researchers to gain valuable insights into the atomistic and molecular aspects of the studied system.…”

Section: Introductionmentioning

confidence: 99%

“…To our knowledge, no available research has been found regarding the spallation strength of HTPB material under impact loading, particularly using molecular simulation (MD) to calculate the spallation strength of HTPB at different temperatures and impact loadings. Spallation strength is an important indicator of material failure under impact loading . Therefore, understanding the spallation strength of HTPB under various temperatures and impact loadings could assist in design that improves the shock resistance of the materials.…”

Section: Introductionmentioning

confidence: 99%

Impact Velocity and Temperature Effects on the Shock Wave Propagation and Spallation of Hydroxyl-Terminated Polybutadiene: A Molecular Dynamics Study

Liu,

He,

Xian

et al. 2023

ACS Appl. Polym. Mater.

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Hydroxyl-terminated polybutadiene (HTPB) is frequently employed as a key component of propellant binder in missiles or solid rockets. Understanding its shock response can help us to deepen our understanding of the shock response in its composites. Considering that missiles or solid rockets often need to operate in various temperature environments, investigating the shock wave propagation within the HTPB and its spallation behaviors under different temperatures and impact velocities is critical for understanding its failure modes. By employing large-scale molecular dynamics simulations, we provide a thorough analysis of the shock propagation and spallation strength of the HTPB under different initial temperatures and impact velocities. The quantification of the spallation strength is done by indirect methods based on the acoustic and modified acoustic assumptions and by the direct method that analyzes atomic stress in the spallation region. Our simulation results reveal that the spallation strength is associated with the impact velocity acting on the materials as well as the initial temperature. When the initial temperature is below the glass transition temperature, the spallation strength exhibits a monotonic decrease with increasing impact velocity. In contrast, such monotonicity is not observed above the glass transition temperature. Our findings furnish insights at the molecular level regarding the spallation processes in HTPB under varying impact loadings and temperature conditions, thereby facilitating the design of HTPB materials with enhanced resistance to impact loading.

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An In-Plane Bending Test to Characterize Edge Ductility in High-Strength Steels

Khalilabad

Perdahcıoğlu

Atzema

et al. 2022

J. of Materi Eng and Perform

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A novel in-plane bending test was used to study edge ductility in DP800 as a common advanced high-strength steel in the car industry. The test utilized the digital image correlation technique to measure the local and average fracture strain values along the edge of the specimen. In contrast to the widely used hole expansion capacity test, the impact of punch friction, contact stress, and out-of-plane strain on edge ductility is eliminated by removing the punch. Also, the strain gradient inherent to the beam bending provides a controlled crack propagation path, making crack tracking easier than the sheared edge tensile test. The proposed bending test was utilized to investigate the influence of material orientation, cutting parameters, and global strain gradient on edge fracture strain. A correlation was observed between edge ductility, material orientation, and cutting tool sharpness, while the average fracture strain was independent of the strain gradient. The outcome shows that the in-plane bending test is reliable for determining edge ductility in any desired material orientation.

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Effects of the Phase Content on Spallation Damage Behavior in Dual-Phase Steel

Cited by 4 publications

References 46 publications

Processing, microstructure adjustments, and mechanical properties of dual phase steels: A review

Processing, microstructure adjustments, and mechanical properties of dual phase steels: A review

Impact Velocity and Temperature Effects on the Shock Wave Propagation and Spallation of Hydroxyl-Terminated Polybutadiene: A Molecular Dynamics Study

An In-Plane Bending Test to Characterize Edge Ductility in High-Strength Steels

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