Experimental and numerical investigation of residual stresses around cold extrusion hole of ultrahigh strength steel

Zhao, Chunmei; Hu, Hongyan; Zhou, Yefei; Gao, You-Shui; Ren, Xuejun; Yang, Qingxiang

doi:10.1016/j.matdes.2013.02.073

Cited by 18 publications

(5 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the other hand, considering that a small edge distance ratio will have a certain impact on the residual stress field around the hole, and then affect the fatigue life of the whole component, Zhao et al [25] studied the influence of critical process parameters such as edge distance ratio on the residual stress distribution and fatigue life around the cold extrusion strengthening hole. Similarly, Ayatollahi et al [26] studied the effect of edge distance ratio on the residual stress distribution around the hole wall and along the width of the workpiece through a two-dimensional finite element model, pointed out that the edge distance ratio greater than 3 has little effect on the residual stress field.…”

Section: Introductionmentioning

confidence: 99%

Numerical and Experimental Investigation of the Effect of Cold Extrusion Process on Residual Stress and Fatigue Life of Internal Thread of High Strength Steel

Wan

He²,

Jing³

et al. 2022

Preprint

View full text Add to dashboard Cite

The internal thread cold extrusion process is improved to further increase the fatigue life of diesel connecting rod in order to improve its fatigue performance. Based on three-dimensional finite element model, the residual stress distribution around the cold extruded internal thread of 42CrMo4 high-strength steel plate hole structure under different edge distance ratios is analyzed in detail. The multiaxial fatigue life prediction model of thread is established based on stress-strain method, the accuracy and feasibility of the prediction model was further proved by fatigue experiments. The thread surfaces are examined by utilizing the scanning electron microscope, coordinate with the X-ray diffraction method to measure the residual stress of thread, the relationship between the residual stress distribution, surface structure and fatigue life of the extruded thread is revealed. The research shows that the improved fatigue prediction model gives a satisfactory accuracy in predicting the fatigue life, both of the tangential residual stress fields around the extruded thread and the surface structure have a certain influence on its fatigue life, especially when the edge distance ratio is less than 2. The tangential residual compressive stress of the cold extruded internal thread decreases with when the edge distance ratio being smaller, while the depth of the stress zone increases firstly and then decreases. Higher load will greatly reduce the fatigue life and dispersion of the thread, the fatigue life increases linearly with the increase of the edge distance ratio under lower stress level.

show abstract

Section: Introductionmentioning

confidence: 99%

Numerical and Experimental Investigation of the Effect of Cold Extrusion Process on Residual Stress and Fatigue Life of Internal Thread of High Strength Steel

Wan

He²,

Jing³

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…For this purpose, many approaches have been adopted, including experimental techniques, analytical models, and numerical simulations. Common experimental methods adopted to evaluate residual stress field are: X-ray diffraction technique [26,[37][38][39][40][41][42][43][44][45], neutron diffraction technique [45,46], the modified Sachs method [47], and the Garcia-Sachs method [48,49]. Unfortunately, all the mentioned techniques show some drawbacks: the X-ray diffractometer measures stresses only in the outer surface layers of the component [42] and moreover the output is affected by not acceptable accuracy in areas with high stress gradients; neutron diffraction technique is very complex and not easy to implement; the Sachs method is based on approximate formulations.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, the CE process is mostly applied in aerospace, hence most of the results of previous investigations referred mainly on drilled aluminium alloys parts or assemblies submitted or not to CE [26,37,[50][51][52][53][54][38][39][40][42][43][44][45]48], representing mock-ups of real aeronautical components with riveted or bolted joints. Only few research works experimentally investigated CE on steel components [41,55], but none of them considered railway parts or structures, and in particular rail-endbolt holes discussed in this paper. In literature, various analytical models can be found for the evaluation of the residual stress field due to CE.…”

Section: Introductionmentioning

confidence: 99%

Cold expansion of rail-end-bolt holes: Finite element predictions and experimental validation by DIC and strain gauges

Carrabs

Elliott²,

Meo

2021

International Journal of Fatigue

View full text Add to dashboard Cite

“…B. Jiang et al [ 23 ] used a CT method for damage for damage inspections of a steel tube slab (STS) structure [ 24 , 25 , 26 , 27 , 28 , 29 , 30 ]. However, the damage in the framework of integrated structural health monitoring, such as hole-edge corrosion and multi-hole edge corrosion, is rarely reported in published literature [ 31 , 32 ].…”

Section: Introductionmentioning

confidence: 99%

Corrosion Monitoring Method of Porous Aluminum Alloy Plate Hole Edges Based on Piezoelectric Sensors

Dai

Wang

Zhang

et al. 2019

Sensors

View full text Add to dashboard Cite

Corrosion damage to the aircraft structure can significantly reduce the safety performance and endanger flight safety. Especially when the corrosion occurs in a stress concentration region, such as hole edges, it can easily threaten the entire structure. In this paper, an on-line imaging qualitative monitoring algorithm based on piezoelectric sensors is proposed for detecting hole edge corrosion damage of porous aluminum alloy structures. The normalized amplitude is used to characterize the correlation between the initial Lamb wave signal and the damage signal, which is as an image reconstruction parameter in the algebraic iterative probability reconstruction algorithm. Moreover, a homogenization algorithm is proposed to process the reconstruction results. The experimental results of single hole and double hole corrosion for porous aluminum alloy plate show that the method can effectively achieve the location and quantification of corrosion damage to one and two holes of the porous structure.

show abstract

Experimental and numerical investigation of residual stresses around cold extrusion hole of ultrahigh strength steel

Cited by 18 publications

References 27 publications

Numerical and Experimental Investigation of the Effect of Cold Extrusion Process on Residual Stress and Fatigue Life of Internal Thread of High Strength Steel

Numerical and Experimental Investigation of the Effect of Cold Extrusion Process on Residual Stress and Fatigue Life of Internal Thread of High Strength Steel

Cold expansion of rail-end-bolt holes: Finite element predictions and experimental validation by DIC and strain gauges

Corrosion Monitoring Method of Porous Aluminum Alloy Plate Hole Edges Based on Piezoelectric Sensors

Contact Info

Product

Resources

About