Numerical modeling of residual stress induced by laser shock processing

Wei, Xinlong; Ling, Xiang

doi:10.1016/j.apsusc.2014.02.128

Cited by 62 publications

(16 citation statements)

References 29 publications

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“…In a three-dimensional finite element analysis model, magnitude and distribution of stress due to shock peening is predicted, Wei and Ling [322] used a three-dimensional finite element model with the shock profile determined by Fabbro et al's model given above to predict the magnitude and distribution of stress and analyzed the role of various parameters like pulse width, power density and overlap, etc., on the shock peening. Many similar efforts have been made in predicting residual stresses using finite element modeling [323][324][325][326][327].…”

Section: Predictive Modelingmentioning

confidence: 99%

Overview of Laser Applications in Manufacturing and Materials Processing in Recent Years

Shin

Lei

et al. 2020

Journal of Manufacturing Science and Engineering

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Recent years have witnessed a rapid growth of the laser market. Figure 1 shows the recent revenues of laser sales with about 50% increase in revenue over recent four years , which far exceeds the growth of other industrial sectors. More than one third of this revenue belongs to the category of laser materials processing arena. Undoubtedly, lasers have been playing increasingly important roles in various industrial manufacturing sectors. This article is to capture some of important developments in the rapidly growing areas of laser-based manufacturing and materials processing and also describe important technological issues pertaining to various laser-based manufacturing processes. The topics to be covered in this paper include more popularly used processes in industry such as laser additive manufacturing, laser-assisted machining, laser micromachining, laser forming, laser surface texturing, laser welding, and laser shock peening, although there are several additional areas of laser applications. In each section, a brief overview of the process is provided, followed by critical issues in implementing the process, such as properties, predictive modeling, and process monitoring, and finally some remarks on future issues that can guide researchers and practitioners.

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Section: Predictive Modelingmentioning

confidence: 99%

Overview of Laser Applications in Manufacturing and Materials Processing in Recent Years

Shin

Lei

et al. 2020

Journal of Manufacturing Science and Engineering

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“…With the increasing number of laser impacts, the maximum compressive residual stress rises also by single-sided LSP simulation until reaching a saturation value. 5 In fact, for the S 11 component, the maximum compressive residual stress varies from À690 MPa for a single impact to À800 MPa for three impacts. Besides, for the S 22 component, it varies from À800 MPa for a single impact to À950 MPa for three impacts.…”

Section: Effect Of Single-sided Lsp On Thin Leading Edge Of Turbine Bmentioning

confidence: 99%

“…Kim and Lee 4 discussed the effects of parameters related to the finite-element simulation of LSP to determine residual stresses. Wei and Ling 5 used a 3D model to analyse the effects of LSP treatments on residual stresses. Frija et al., 6 Ayeb 7 and Ayeb et al.…”

Section: Introductionmentioning

confidence: 99%

Influence of multiple laser impacts on thin leading edges of turbine blade

Ayeb

Frija

Fathallah

2019

Proceedings of the Institution of Mechanical Engineers, Part L:

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Laser shock peening is a mechanical surface improvement treatment used to enhance the fatigue life of critical components. This paper investigates the influence of multiple square laser impacts to study their special effect on the diverse mechanical behaviours of the thin leading edge surface of turbine blades. Most works existing in the literature have presented experimental investigations. The originality of our paper is to validate and numerically simulate the proposed model. Indeed, a 3D finite element method of a thin leading edge specimen, Ti–6Al–4V, of a turbine blade is numerically simulated using the ABAQUS software. The mechanical surface modifications (residual stresses, equivalent plastic strains and Johnson–Cook superficial damage) induced by the multiple square laser impact are examined in detail. The main purpose of this investigation is to determine the effects of single-sided and double-sided laser shock peening.

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“…Most of the constraint layer are distilled water or glasses. In recent research, most scholars' show that repetitive LSP can make a significant improve of the material mechanical and fatigue properties [11,12]. In the LSP process the laser pressure based on Von Mise stress yield standard.…”

Section: Introductionmentioning

confidence: 99%