Numerical characterization of shot peening induced work hardening gradient and verification based on FEM analysis

Zhou, Jianqiang; Sun, Zhidan

doi:10.1016/j.ijsolstr.2022.111586

Cited by 7 publications

(4 citation statements)

References 57 publications

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“…Finite Element Method (FEM) is an important technique in computational mechanics; it is a numerical technique that seeks to approximate the solution of partial differential equations by dividing complex problems into smaller elements that can be solved mutually [54]. The method can be used to establish a numerical model that matches the actual shot peening situation, to simulate the dynamic process accurately, to analyze the residual compressive stress field and surface roughness of the target material, and to explore the shot peening enhancement mechanism [8,17].…”

Section: Numerical Investigation Of the Shot Peening Processmentioning

confidence: 99%

State of the Art and Perspectives on Surface-Strengthening Process and Associated Mechanisms by Shot Peening

et al. 2023

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Shot peening is a surface-strengthening process that is widely used in various industries, such as aerospace, automotive, and biomedical engineering. The process involves the impact of small, spherical media, called shots, onto the surface of a material, resulting in residual compressive stress and improved surface properties. This review aims to provide an overview of the state of the art and perspectives on surface strengthening by shot peening. The review covers various aspects of shot peening, including process parameters, shot materials, and quality control techniques. The advantages and limitations of shot peening in comparison to other surface-strengthening techniques are also discussed. The findings of this review indicate that shot peening is a versatile and effective surface-strengthening technique with numerous applications, and further research is needed to fully realize its potential. In conclusion, this review provides insights into the current status and future perspectives on surface strengthening by shot peening, and it is expected to be useful for researchers, engineers, and practitioners in the field of material science and engineering.

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Section: Numerical Investigation Of the Shot Peening Processmentioning

confidence: 99%

State of the Art and Perspectives on Surface-Strengthening Process and Associated Mechanisms by Shot Peening

et al. 2023

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“…Numerical simulation could be an effective approach to highlight the involvement of kinematic hardening in the SSPD processes. Zhou and Sun 148) numerically investigated peening-induced work hardening gradient. They revealed that for a material which presents isotropic hardening and kinematic hardening behaviors, both the size and the position of the yield surface are changed due to shot peening.…”

Section: Work Hardening and Hardnessmentioning

confidence: 99%

Mechanical Properties of Metallic Materials Processed by Surface Severe Plastic Deformation

2023

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This paper gives an overview about some mechanical properties of materials processed by surface severe plastic deformation (SSPD) techniques. SSPD processed materials are classified in terms of characteristics, and main generated parameters that determine the output properties of materials are presented. The influences of SSPD on mechanical properties of materials are then reviewed. Furthermore, the roles played by some parameters such as gradient microstructure, nanostructured layer, compressive residual stress (CRS) and surface integrity are highlighted by discussing their contributions. Finally, some conclusions are drawn and possible prospects for future research are underlined.

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“…Consequently, the surface hardness and strength of the material are increased, the notch effect is reduced, and the material's fatigue life is prolonged. Furthermore, the compressive residual stresses limit crack growth at the surface, which improves the material's resistance to stress corrosion cracking, stress fatigue cracking, and fatigue corrosion [11,12]. Thus, peening is a useful method of improving the fatigue life of components.…”

Section: Introductionmentioning

confidence: 99%

Fatigue Life Improvement of Weld Beads with Overlap Defects Using Ultrasonic Peening

et al. 2023

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Welding defects are common during the production of large welded structures. However, few studies have explored methods of compensating for clear welding defects without resorting to re-welding. Here, an ultrasonic peening method to compensate for the deteriorated mechanical properties of overlap weld defects without repair welding was studied. We experimentally investigated changes in the mechanical properties of defective welds before and after ultrasonic peening. The weld specimen with an overlap defect contained a large cavity-type defect inside the weld bead, which significantly reduced the fatigue life. When the surface of the defective test piece was peened, the fatigue life of the weld plate was restored, resulting in an equivalent or higher number of cycles to failure, compared to a specimen with a normal weld. The recovery of mechanical properties was attributed to the effect of surface work hardening by ultrasonic peening and the change in stress distribution. Thus, ultrasonic peening could compensate for the deterioration of mechanical properties such as tensile strength, fatigue life, and elongation due to overlap defects, without resorting to repair welding.

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Numerical characterization of shot peening induced work hardening gradient and verification based on FEM analysis

Cited by 7 publications

References 57 publications

State of the Art and Perspectives on Surface-Strengthening Process and Associated Mechanisms by Shot Peening

State of the Art and Perspectives on Surface-Strengthening Process and Associated Mechanisms by Shot Peening

Mechanical Properties of Metallic Materials Processed by Surface Severe Plastic Deformation

Fatigue Life Improvement of Weld Beads with Overlap Defects Using Ultrasonic Peening

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