A numerical study of the residual stress pattern from single shot impacting on a metallic component

Hong, Tao; Ooi, Jin Y.; Shaw, Brian

doi:10.1016/j.advengsoft.2007.10.002

Cited by 66 publications

(40 citation statements)

References 14 publications

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“…Johnson-Cook extended this criterion by including strain rate and thermal softening effect in Eqn. (6) and concluded that failure strain can be predicted as…”

Section: Ti-6al-4v Platementioning

confidence: 99%

“…Extensive work has been done to understand foreign object damage (FOD) behaviour of aero engine components. Hong 6 , et al evaluated residual stresses in a three dimensional objects using FEM and studied the effect of initial yield stress, impact velocity, diameter of projectile and incident angle of impact. Meguid 7,8 examined the effect of projectile and target parameters upon the deformed zone and induced residual stresses using DYNA-3D FEM code.…”

Section: Introductionmentioning

confidence: 99%

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Experimental and Numerical Correlation of Impact of Spherical Projectile for Damage Analysis of Aero Engine Component

et al. 2016

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Studies the impact response of flat Titanium alloy plate against spherical projectile for damage analysis of aero engine components using experimental and finite element techniques. Compressed gas gun has been used to impart speed to spherical projectile at various impact velocities for damage studies. Crater dimensions (diameter and depth) obtained due to impact have been compared with finite element results using commercially available explicit finite element method code LS-DYNA. Strain hardening, high strain rate and thermal softening effect along with damage parameters have been considered using modified Johnson-Cook material model of LS-DYNA. Metallographic analysis has been performed on the indented specimen. This analysis is useful to study failure analysis of gas turbine engine components subjected to domestic object damage of gas turbine engine.

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“…Johnson-Cook extended this criterion by including strain rate and thermal softening effect in Eqn. (6) and concluded that failure strain can be predicted as…”

Section: Ti-6al-4v Platementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Correlation of Impact of Spherical Projectile for Damage Analysis of Aero Engine Component

et al. 2016

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“…(4), when the dimensionless parameters are unchanged, the maximum compressive residual stress σ m depend only on the impact energy density; and the maximum depth of dent h m is proportional to the radius of the shot, whereas σ m is independent of it, which is consistent with the conclusions obtained from Refs. [14,17,18,20,21,25].…”

Section: Dimensionless Parametric Analysismentioning

confidence: 99%

“…In recent years, many analytical and numerical models, with which the residual stress, the surface integrity and the influence of parameters can be predicted, have been applied to analyze the SP process to take advantage of advancements in computer technology [5,6,[8][9][10][11][12][13][14][15]. The effects of some SP parameters have been investigated [2,[16][17][18][19][20][21], however, little research has focused on systematic analysis of dimensionless parameters in SP process, which is important for clarifying the influence of process conditions. Kelmenz et al [14] studied the residual stress state after shot peening with dimensional analysis method and finite element method (FEM) simulation, and the effects of four dimensionless input values were investigated.…”

Section: Shot Peening (Sp) Is One Of the Effective Surface Treatmentmentioning

confidence: 99%

Parametric study on single shot peening by dimensional analysis method incorporated with finite element method

Wang

Yan

et al. 2012

Acta Mech Sin

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Shot peening is a widely used surface treatment method by generating compressive residual stress near the surface of metallic materials to increase fatigue life and resistance to corrosion fatigue, cracking, etc. Compressive residual stress and dent profile are important factors to evaluate the effectiveness of shot peening process. In this paper, the influence of dimensionless parameters on maximum compressive residual stress and maximum depth of the dent were investigated. Firstly, dimensionless relations of processing parameters that affect the maximum compressive residual stress and the maximum depth of the dent were deduced by dimensional analysis method. Secondly, the influence of each dimensionless parameter on dimensionless variables was investigated by the finite element method. Furthermore, related empirical formulas were given for each dimensionless parameter based on the simulation results. Finally, comparison was made and good agreement was found between the simulation results and the empirical formula, which shows that a useful approach is provided in this paper for analyzing the influence of each individual parameter.

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“…They have been interested from long ago [1]- [3] and investigated by using experimental, analytical and numerical methods. The outcomes of the investigations have been applied many objects in shot peening [4] [5], sports engineering [6] [7], automotive [8], and many others. The rebound properties are represented by coefficient of restitution, impact time and so on.…”

Section: Introductionmentioning

confidence: 99%

Rebound Property in Low Velocity Impact of Two Equivalent Balls

Inamura¹,

Minamoto²,

Kawamura³

2017

IJERA

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The present study focuses on an impact phenomenon of two spheres and its rebound property. The collision of two spheres is a fundamental problem with impact phenomenon. The coefficient of restitution characterizes the property of impact phenomenon and has been estimated in general by experiment. In addition, it has been tried to estimate the coefficient by analytical and numerical methods. Considering body deformation, the body is deflected rapidly in collision and the strain rate occurred in the body is significantly high. It is well known the yield stress of the specific industrial material depends on the strain rate. However, it has not been proved the relationship between the coefficient of restitution and the strain rate in details yet. The present paper discusses the coefficient of restitution in low velocity impact of two equivalent balls. The impact experiments were conducted for the balls with different diameters by a pendulum impact apparatus. And the balls are numerically analyzed based on the finite element method considering the dependence of yield stress on strain rate as the material property of the balls. In conclusion, the strain rate decreases with the increment of the ball diameter and, it causes the coefficient of restitution to decrease.

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A numerical study of the residual stress pattern from single shot impacting on a metallic component

Cited by 66 publications

References 14 publications

Experimental and Numerical Correlation of Impact of Spherical Projectile for Damage Analysis of Aero Engine Component

Experimental and Numerical Correlation of Impact of Spherical Projectile for Damage Analysis of Aero Engine Component

Parametric study on single shot peening by dimensional analysis method incorporated with finite element method

Rebound Property in Low Velocity Impact of Two Equivalent Balls

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