Modeling of residual stress field induced in Ti–6Al–4V alloy plate by two sided laser shock processing

Zhang, Xingquan; Li, Huan; Duan, Shiwei; Yu, Xiaoliu; Feng, Ji; Wang, Biao; Huang, Zhilai

doi:10.1016/j.surfcoat.2015.09.004

Cited by 56 publications

(17 citation statements)

References 31 publications

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“…And it also results from the convergence of the various tensile stress waves from the boundary of laser spot and the cross-section profile of the dent is in accordance with the profile of residual stress. Similar results have been reported in Zhang, Li, Duan, Yu, Feng, Wang and Huang (2015) and Jawale et al (2018). The results manifest that the spring-back of micro dent edge fades up with a tendency of stability.…”

Section: Further Discussionsupporting

confidence: 88%

Experiment and numerical simulation of micro dent fabricated by laser shocking 2024 aluminum alloy

Fang

Zhang

et al. 2019

MMMS

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Purpose The purpose of this paper is to investigate the dynamic forming process of the micro dent fabricated by laser shock processing on 2024-T3 aluminum alloy. The effect of laser pluse energy on the deformation of micro dent was also discussed in detail. Design/methodology/approach It uses finite element analysis method and the corresponding laser shocking experiment. Findings The results demonstrate that the dynamic formation process of micro dent lasts longer in comparison with the shock wave loading time, and the depths of micro dents increase with the increasing laser energy. In addition, laser shocking with higher energy can result in more obvious pileup occurred at the outer edge of micro dent. Originality/value Surface micro dents can serve as fluid reservoirs and traps of the wear debris, which can decrease the effects of the wear and friction in rolling and sliding interfaces. The investigations can not only be propitious to comprehensively understand the forming mechanism of laser-shocked dent, but also be beneficial to get sight into the residual stress field induced by laser shocking.

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Section: Further Discussionsupporting

confidence: 88%

Experiment and numerical simulation of micro dent fabricated by laser shocking 2024 aluminum alloy

Fang

Zhang

et al. 2019

MMMS

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“…The newer crack propagation consumes much energy and correspondingly reduces pre-crack growth driving force, so the pre-crack growth rate slows down when the newer cracks occur at the higher number of cycles. In order to decrease stress concentration to inhibit the crack initiation at the hole edge, some surface processing technologies are employed to induce compressive residual stress such as shot peening and laser shot peening [28][29][30][31]. Figure 11 displays the predicted FCG paths and experimental ones.…”

Section: Experimental Conditionsmentioning

confidence: 99%

Simulation of fatigue cracks growth processes of two parallel cracks in thin plate pulled by the constant amplitude cyclic loading

Zhang

Wang

Wei

et al. 2019

J Braz. Soc. Mech. Sci. Eng.

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In the paper, the propagation processes of two parallel cracks in 2-mm-thick plate pulled by the cyclic loading were investigated by numerical simulation and experiment. The codes Abaqus and Franc3D were implemented jointly to predict the crack growth path, the stress distribution around the cracks tip and the fatigue life. The corresponding fatigue experiment was carried out on a servo-hydraulic fatigue testing machine. The investigation indicates that the predicted crack paths agree well with the experimental results at the crack propagation early stage, and the predicted crack growth rate is consistent with the findings in experiment, which validate the prediction of the mixed mode crack propagation processes.

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“…Wagner et al [14] used laser peening, shot peening, and ball-burnishing, respectively, to change the state of stresses in materials, and the results showed that all of these methods could generate compressive residual stresses that reinforce surface properties. Other methods, such as thermal tempering and deep rolling, have also been reported by scholars [15][16][17][18][19][20][21][22][23][24][25][26][27].…”

Section: Geometry Modelmentioning

confidence: 87%

Effect of Surface Texturing on Stresses during Rapid Changes in Temperature

Han

Gong

et al. 2016

Metals

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Abstract:Recently, there has been great interest in the application of the surface texturing method to enhance material surface performance. Material surfaces sometimes experience rapid temperature changes, and the local surface will obviously generate thermal stresses, which may be detrimental to the material structure. In order to understand the relationship between surface texturing and stresses, a numerical approach is used to investigate the effects of surface texturing on stresses. The results show that surface texturing can generate compressive stresses along the normal direction of the surface, and that strong tensional stresses can be formed in the center of a surface at the same time that are beneficial to material surface performance. However, a smooth surface cannot generate these beneficial stresses. In addition, there is an optimum design size with respect to textures, and the most desirable state of stress in a surface layer can be achieved at this size.

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Modeling of residual stress field induced in Ti–6Al–4V alloy plate by two sided laser shock processing

Cited by 56 publications

References 31 publications

Experiment and numerical simulation of micro dent fabricated by laser shocking 2024 aluminum alloy

Experiment and numerical simulation of micro dent fabricated by laser shocking 2024 aluminum alloy

Simulation of fatigue cracks growth processes of two parallel cracks in thin plate pulled by the constant amplitude cyclic loading

Effect of Surface Texturing on Stresses during Rapid Changes in Temperature

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