On the problem of material properties in numerical simulation of tube hydroforming

Sadłowska, H.; Kocańda, A.

doi:10.1016/s1644-9665(12)60033-8

Cited by 5 publications

(2 citation statements)

References 11 publications

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“…The associated standard is JIS G3445 [27], comparative to EN 10305-1, ASTM A519, and DIN 2391. The corresponding axial direction stress-strain (σ-ε) relationship of the tube material St35 has been modelled with the relations σ = 724 ε 0.12 [28], i.e. Hollomon's power law model σ = K ε n , of which K the strength index, n the hardening index.…”

Section: Modelling Of Materialsmentioning

confidence: 99%

Development of High Fidelity Finite Element Model of Motorcycle Telescopic Front Fork

Tan¹,

Wong²,

Ahmad³

2016

Int. j. simul. model.

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This paper describes the development of a fully deformable finite element model of an upright telescopic motorcycle front fork in LS-DYNA environment. The modelling for each of the key components, overall assemblage, and contact interactions involved were presented. Comprehensive validation was performed by comparing the reaction forces in a quasi-static test performed on a universal testing machine with customised fixture, which was specially designed to impose compressive and bending load simultaneously on the fork unit throughout the process. The behaviour of the fork under such loading conditions was studied and explained. Significant localised deformations observed on the components were also identified and compared. The results from the simulations were found to be well agreed to that of the physical testing, with closely matching profile of the reaction forces and a deviation of 1.4 % based on the work done to deform the fork. Major considerations for establishing the full model were concluded and recommendations were suggested for improvement.

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Section: Modelling Of Materialsmentioning

confidence: 99%

Development of High Fidelity Finite Element Model of Motorcycle Telescopic Front Fork

Tan¹,

Wong²,

Ahmad³

2016

Int. j. simul. model.

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“…Up to now, a number of studies on the hydroformability of tubular components have been reported [7]. A high strain hardening exponent and a high plastic anisotropy of the material were effective to improve the wall thickness [8,9]. Lubrication conditions had a significant effect on defects of hydroformed parts, such as wrinkling, buckling and cracking [10,11].…”

Section: Introductionmentioning

confidence: 99%

Circumferential Material Flow in the Hydroforming of Overlapping Blanks

Han

Feng

2020

Metals

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The hydroforming of the overlapping blanks is a forming process where overlapping tubular blanks are used instead of tubes to enhance the forming limit and improve the thickness distribution. A distinguishing characteristic of the hydroforming of overlapping blanks is that the material can flow along the circumferential direction easily. In this research, the circumferential material flow was investigated using overlapping blanks with axial constraints to study the circumferential material flow in the hydroforming of a variable-diameter part. AISI 304 stainless steel blanks were selected for numerical simulation and experimental research. The circumferential material flow distribution was obtained from the profile at the edge of the overlap. The peak value located at the middle cross-section. In addition, the circumferential material flow could be also reflected in the variation of the overlap angle. The variation of the overlap angle kept increasing as the initial overlap angle increased but the improvement of the thickness distribution did not. There was an optimal initial overlap angle to minimize the thinning ratio. An optimal thickness distribution was obtained when the initial angle was 120° for the hydroforming of the variable-diameter part with an expansion of 31.6%.

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Data and Modeling in Industrial Manufacturing

Grzegorzewski

Kochański

2018

Studies in Systems, Decision and Control

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On the problem of material properties in numerical simulation of tube hydroforming

Cited by 5 publications

References 11 publications

Development of High Fidelity Finite Element Model of Motorcycle Telescopic Front Fork

Development of High Fidelity Finite Element Model of Motorcycle Telescopic Front Fork

Circumferential Material Flow in the Hydroforming of Overlapping Blanks

Data and Modeling in Industrial Manufacturing

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