Sheet forming
Finite element prediction of sheet forming defects using elastic-plastic, damage and localization models
... new sheet forming processes. The prediction of forming defects like strain localization and springback are some of the current challenges in this research ...
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Numerical and experimental study of AZ31-O magnesium alloy warm sheet forming
... the sheet metal forming process to reduce design time cycle and manufacturing costs in industry ...in sheet metal forming field can be traced back to the work by Alexander Hrennikoff (1941) ...
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On the implementation of the continuum shell finite element SHB8PS and application to sheet forming simulation
... For sheet forming applications, key features like double-sided contact and increased accuracy with only one layer of elements through the thickness make these elements particularly ...
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Modelling the effect of microstructure evolution on the macroscopic behavior of single phase and dual phase steels: Application to sheet forming process
... To cite this version : Salima BOUVIER, Tales CARVALHO RESENDE, Tudor BALAN, Farid ABED-MERAIM - Modelling the effect of microstructure evolution on the macroscopic behavior of single phase and dual phase steels: ...
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Elastic-plastic analyses using the solid-shell finite element SHB8PS and evaluation on sheet forming applications
... For sheet forming applications, key features like double-sided contact and increased accuracy with only one layer of elements through the thickness make these elements particularly ...
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Creep age forming of Al-Cu-Li alloy: Application to thick sheet forming of double curvature aircraft panel
... 1 Introduction In recent years, lightening aeronautical structures is one of the main axes of improvement. An interesting perspective is to add lithium to conventional aluminum alloys, which improves their mechanical ...
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Elasto-visco-plastic modeling of mild steels for sheet forming applications over a large range of strain rates
... application to larger strains. The identified values for the material parameters are provided in Table 3. Figure 1 compares the predictions of the proposed constitutive model with tensile experiments at two strain rates ...
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Single point incremental sheet forming investigated by in-process 3D digital image correlation
... Incremental Forming (SPIF) is a sheet forming process that has gained interest recently in prototyping and small batch ...a sheet metal part (aluminium, steel) is formed in a stepwise fashion ...
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Development of an inverse method for identification of materials parameters in the single point incremental sheet forming process
... [3] P. Flores, L. Duchene, T. Lelotte, C. Bouffioux, F. El Houdaigui, A. Van Bael, S. He, J. Duflou, A. M. Habraken, Model Identification and FE Simulations: Effect of Different Yield Loci and Hardening Laws in ...
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Constitutive modeling of advanced thermoset composites with application to sheet forming processes
... The major accomplishments of this research include: an experimental investigation of the me- chanical response of long fiber thermoset composites for a range of tem[r] ...
170
Numerical Investigation of the Limit Strains in Sheet Forming Involving Bending
... a in Fig. 4: Major strain distribution at different stages of the simulation; punch radius 12.5 mm. According to these observations, the sudden elastic unloading of more than 80% of the sample is formally considered as ...
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Application of the continuum shell finite element SHB8PS to sheet forming simulation using an extended large strain anisotropic elastic–plastic formulation
... this work, an average value is taken over the integration points across the thickness. This choice avoids an overstiff response that would correspond to a purely elastic hourglass stabilization scheme. This simple and ...
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Comparison between incremental deformation theory and flow rule to simulate sheet-metal forming processes
... the forming operation, taking into account, the material and the process ...two sheet-metal forming processes: typical stretch forming operation and incremental single point sheet ...
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Parameter identification of a mechanical ductile damage using Artificial Neural Networks in sheet metal forming
... for sheet forming simulations since the 1970s, and have immensely contributed to ensure the suc- cess of concurrent design in the manufacturing process of sheets ...the forming operation, the ...
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Prediction of strain localization in sheet metal forming using elastoplastic-damage model and localization criterion
... For this purpose, an advanced, anisotropic elastoplastic model, combining isotropic and kinematic hardening, has been coupled with an isotropic damage model [1]. The coupling with the damage model is carried out within ...
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Evaluation of a new solid-shell finite element on the simulation of sheet metal forming processes
... of sheet metal forming simu- lation using anisotropic elastic–plastic behavior ...in sheet forming ...for sheet forming applications with plastic ...
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Cold forming by stretching of aeronautic sheet metal parts
... U-shape sheet-forming experiments: an acceptable accuracy was ...the forming of aircraft panels) since the plane strain hypothesis is not appropriate to non-developable ...the sheet metal ...
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Simplified numerical approach for incremental sheet metal forming process
... Conventional sheet metal forming processes such as stamping and hydro-forming are realized with ...conventional sheet forming processes with dies become less competitive for low volume ...
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Numerical investigation and experimental validation of a plasticity model for sheet steel forming
... for sheet metal parts in the automotive industry to meet these ...in forming these new materials and the short development times in the automotive industry, the numerical simulation has become a common tool ...
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Bone Forming Angents
... 75µg or 100µg) or placebo by daily subcutaneous injection for 12 months. The 100µg dose increased BMD significantly at three months and 12 months (+7.8%). Bone area also significantly increased (+2.0%). Non-significant ...
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