Correlation of Almen arc height with residual stresses in shot peening process

Cao, Weicheng; Fathallah, Raouf; Castex, L.

doi:10.1179/mst.1995.11.9.967

Cited by 94 publications

(47 citation statements)

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“…This method consists in measuring the deflection or curvature of a thin plate caused by the addition or removal of material containing residual stresses. The method was firstly developed for evaluating the stresses in electroplated materials, and is also useful for assessing the stresses induced by shot-peening [77].…”

Section: Other Destructive Methodsmentioning

confidence: 99%

Methods of measuring residual stresses in components

et al. 2012

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Residual stresses occur in many manufactured structures and components. Large number of investigations have been carried out to study this phenomenon and its effect on the mechanical characteristics of these components.Over the years, different methods have been developed to measure residual stress for different types of components in order to obtain reliable assessment. The various specific methods have evolved over several decades and their practical applications have greatly benefited from the development of complementary technologies, notably in material cutting, full-field deformation measurement techniques, numerical methods and computing power. These complementary technologies have stimulated advances not only in measurement accuracy and reliability, but also in range of application; much greater detail in residual stresses measurement is now available. This paper aims to classify the different residual stresses measurement methods and to provide an overview of some of the recent advances in this area to help researchers on selecting their techniques among destructive, semi destructive and non destructive techniques depends on their application and the availabilities of those techniques. For each method scope, physical limitation, advantages and disadvantages are summarized. In the end this paper indicates some promising directions for future developments.

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Section: Other Destructive Methodsmentioning

confidence: 99%

Methods of measuring residual stresses in components

et al. 2012

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“…Also shown in Fig. 3b are residual stress predictions of measurements from an Almen strip [40]. The measurements from ref.…”

Section: Evaluation Of the Elastic-plastic Deviatoric Stresses Based mentioning

confidence: 97%

“…Figure 3 provides multiple residual stress plots based on the model. The shot diameter and velocity for the plots can be found in [16] and include 2R Ã ¼ 0:4 Â 10 À3 m, and V ¼ 45 m/ s. The material peened was a constrained Almen strip [40] made of spring steel (SAE 1070). The material properties are provided in Table 1.…”

Section: Evaluation Of the Elastic-plastic Deviatoric Stresses Based mentioning

confidence: 99%

A study of the residual stress induced by shot peening for an isotropic material based on Prager’s yield criterion for combined stresses

Davis

2015

Meccanica

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Prager developed a yield criterion for a generalized isotropic material that is more capable of predicting material behavior that occurs from combined loading. A less studied topic is the effect of combined loading on the residual stress state. The purpose of the present work is to develop a theoretical model for a residual stress based on Prager's relation and establish how the predictions are influenced. Prager's yield criterion which includes the third deviatoric invariant, J3, provides a way to estimate the influence J3 has on the residual stress. The analyzed residual stress originates from shot peening because much experimental data exists to compare and validate the theoretical results.

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“…Cao et al [10] proposed an approximate model able to relate Almen intensity to shot velocity, however the relationship with the residual stresses in the shot peened object was not investigated. Many approaches recorded in published research deal with the prediction of residual stresses due to SP but do not relate them with Almen intensity and are therefore of limited practical interest.…”

Section: Introductionmentioning

confidence: 99%

A combined DEM–FEM numerical method for Shot Peening parameter optimisation

Murugaratnam

Utili

Petrinić

2015

Advances in Engineering Software

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full bibliographic details are credited, a hyperlink and/or URL is given for the original metadata page and the content is not changed in any way. A note on versions:The version presented here may differ from the published version or, version of record, if you wish to cite this item you are advised to consult the publisher's version. Please see the 'permanent WRAP url' above for details on accessing the published version and note that access may require a subscription. In this approach, shot-shot and shot-target interactions as well as the overall shot flow were simulated efficiently using rigid body dynamics. A new algorithm to dynamically adapt the coefficient of restitution (CoR) for repeated impacts of shots on the same spot was implemented in the DEM code to take into account the effect of material hardening. Then, a parametric study was conducted using the Finite Element Method (FEM) to investigate the influence of the SP parameters on the development of residual stresses.Finally, a two-step coupling method is presented to combine the output of DEM simulation with FEM analyses to retrieve the Compressive Residual Stresses (CRS) after multiple impacts with the aim to evaluate the minimum area required to be modelled to realistically capture the field of residual stresses. A series of such coupled analyses were performed to determine the effect of peening angle and the combination of initial velocity and mass flow rate on CRS.

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Correlation of Almen arc height with residual stresses in shot peening process

Cited by 94 publications

References 0 publications

Methods of measuring residual stresses in components

Methods of measuring residual stresses in components

A study of the residual stress induced by shot peening for an isotropic material based on Prager’s yield criterion for combined stresses

A combined DEM–FEM numerical method for Shot Peening parameter optimisation

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