Numerical analysis of the residual stress in ultrasonic impact treatment process with single-impact and two-impact models

Guo, Chaobo; Wang, Zhijiang; Wang, Dongpo; Hu, Shengsun

doi:10.1016/j.apsusc.2015.04.128

Cited by 50 publications

(21 citation statements)

References 15 publications

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“…It might distribute at some local area, where the local tensile stress will be enlarged if the load is applied, and influence the local stress condition near weld toe unfavorably [15,16]. Moreover, the microweld defects will also be introduced, which makes the local stress condition much worse.…”

Section: Residual Stress Measurementmentioning

confidence: 95%

Local stress variation in welded joints by ICR treatment

Yuanzhou

et al. 2016

Journal of Constructional Steel Research

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Section: Residual Stress Measurementmentioning

confidence: 95%

Local stress variation in welded joints by ICR treatment

Yuanzhou

et al. 2016

Journal of Constructional Steel Research

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“…The aim of the first step was to develop a submodel, which uses fewer impacts instead of the total number of impacts, to simulate the process and to obtain the distributions of the residual stress and strain within the target plate. Because of the distributions of the residual stress cannot be influenced by the other impacts with the distances larger than 2 mm [14]. In the submodel, the target plate was 8 mm × 8 mm × 5 mm and the impact zone was restricted to an area of 4 mm × 4 mm, as shown in Fig.…”

Section: Numerical Modelmentioning

confidence: 99%

Finite element analysis of the effect of the controlled parameters on plate forming induced by ultrasonic impact forming (UIF) process

Guo

Wang

et al. 2015

Applied Surface Science

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“…To predict the increase of fatigue life by damage-and fracture mechanics local approaches it is absolutely necessary that the induced residual stress field can be accurately described by numerical calculations. Recent work in this field focused on the influence of the mesh size, choice of friction model, overlapping of tool in-dentations and applicable boundary conditions on the numerical simulations [13,[15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Numerical fatigue life analysis of a high frequency mechanical impact treated industrial component based on damage mechanics models

Schubnell

Farajian

Däuwel

et al. 2018

Materialwissenschaft Werkst

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After post weld treatment with high frequency mechanical impact (HFMI) treatment of welds, a significant increase of fatigue life (up to a factor of 10) can be achieved. During the last years numerous experimental tests of welded joints with simple geometry under constant amplitude loading have been performed to quantify the positive effect of high frequency mechanical impact treatment. Due to the lack of methods for the prediction of the high frequency mechanical impact benefits, a widespread use of this process is not the case yet. Furthermore, it is still not clear if the results of these fatigue tests can be transferred to complex geometries and complex loading conditions such as in industrial applications. Therefore, an approach to assess the fatigue life of complex welded structures under variable amplitude loading was developed. For this purpose, high frequency mechanical impact treatment and fatigue load of simple welded specimen made of S690QL steel were simulated with finite element analysis (FEA) firstly. Then, the needed damage parameters for the fatigue life correlation were evaluated from the finite element postprocessing. The calculated life time to crack initiation was in good agreement with the experimental fatigue test results. In the next step, this procedure was implemented on a welded arm of an evacuator of type EW180B of the company Volvo Construction Equipment made of S700MC. The variable amplitude load measured under real service condition was transferred to single constant amplitude load cycles using a rainflow-counting algorithm. By simulation and damage mechanics evaluation of each load cycle the total damage sum could be calculated and compared with the experimental results from Volvo Construction Equipment.Keywords: Fatigue / welding / residual stresses / high frequency mechanical impact (HFMI) / finite element analysis (FEA) Nach einer Schweißnahtnachbehandlung mittels Hochfrequenzhämmern (engl. high frequency mechanical impact treatment (HFMI)) kann eine signifikante Lebensdauerverlängerung des Bauteils (bis zu einem 10-fachen) festgestellt werden. Während der letzten Jahre wurde dieser positive Effekt vielfach experimentell mit einfachen Proben-

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Numerical analysis of the residual stress in ultrasonic impact treatment process with single-impact and two-impact models

Cited by 50 publications

References 15 publications

Local stress variation in welded joints by ICR treatment

Local stress variation in welded joints by ICR treatment

Finite element analysis of the effect of the controlled parameters on plate forming induced by ultrasonic impact forming (UIF) process

Numerical fatigue life analysis of a high frequency mechanical impact treated industrial component based on damage mechanics models

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