Rubber Mandrel and Internal Pressure Effects on Thin-Walled Tube Bending: A Comparative Study DOI
Majid Askari Sayar, Mahdi Gerdooei, Hamidreza Eipakchi

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: July 3, 2024

Abstract Tube bending plays a crucial role in various industrial sectors, ranging from aerospace, military, and petrochemical to automotive manufacturing. However, persistent challenge this process is the occurrence of springback, which disrupts intended shape bent tubes affects product assembly. While previous research has primarily focused on predicting managing springback using simplified biaxial stress assumptions, influence radial normal (internal pressure) often been overlooked, particularly modern techniques like hydroforming rubber pad forming. In study, comprehensive investigation into impact internal pressure during tube was undertaken, employing analytical, numerical, experimental methodologies. The utilization mandrel thin-walled effectively reduces angles by up 9.86% compared without it. numerical simulation demonstrates stronger agreement with data, highlighting importance generated mandrel's contact stress. This contributes increasing plastic strain level, extending skin, removing elastic core, subsequently reducing springback.

Language: Английский

Failure mechanism and dynamic response of reinforced concrete joints under impact load acting on beam ends DOI
Liu Jin,

Xinger Li,

Renbo Zhang

et al.

International Journal of Impact Engineering, Journal Year: 2023, Volume and Issue: 185, P. 104863 - 104863

Published: Dec. 15, 2023

Language: Английский

Citations

5
Extending the Finite Area Method for enhanced simulation of deformable membranes and its application to extrusion blow moulding DOI Creative Commons
Wagner de Campos Galuppo,

Pedro Santana,

Francisco Alves

et al.

Thin-Walled Structures, Journal Year: 2024, Volume and Issue: 203, P. 112184 - 112184

Published: July 4, 2024

This paper investigates the mechanics of Extrusion Blow Moulding (EBM) process, focusing on clamp and inflation phases. The simulation framework employed in this study has been developed using OpenFOAM ® extends available Finite Area Method with a vertex-centred approach. cutting-edge developments integrated corotational formulation quasi-static approximation. computational code algorithm are verified validated through comparisons between analytical solutions, experimental measurements results, ensuring accuracy reliability proposed implemented is by checking fundamental principles hyperelastic materials behaviour, demonstrated equibiaxial deformation spherical balloons. use neo-Hookean Mooney–Rivlin material models provides crucial insights into responses under different conditions. studies begin employing conceptual mould within EBM process that allows examining effects clamping parison deformation. Then to analysing real bottle manufactured via EBM, Stereolithography (STL) digitization thickness mapping quantify distribution. results closely replicates observations, capturing inherent non-linearity these stages, including large deformations displacements, hyperelasticity parison-mould contacts. interdisciplinary research enhances understanding phases analogous processes, providing valuable for plastic manufacturing. It improves design meeting specific requirements offers guidelines avoid potential failures. findings underscore importance such advancing sustainable efficient manufacturing practices, applications ranging from inflatable structures processes.

Language: Английский

Citations

1
Numerical fatigue damage analysis and mathematical modeling of articular cartilage under cyclic load via hyperelasticity theory DOI

M. Furjan,

Jiongjiong Cai, L. Shan

et al.

Applied Mathematical Modelling, Journal Year: 2024, Volume and Issue: 136, P. 115613 - 115613

Published: July 24, 2024

Language: Английский

Citations

1
Non-Linear Elastic Beam Deformations with Four-Parameter Timoshenko Beam Element Considering Through-the-Thickness Stretch Parameter and Reduced Integration DOI Open Access
Nasser Firouzi, Ahmed S. M. Alzaidi

Symmetry, Journal Year: 2024, Volume and Issue: 16(8), P. 984 - 984

Published: Aug. 2, 2024

In this work, non-linear elastic deformations of beams are investigated. The kinematics the beam is derived based on an element with four-parameter containing a through-the-thickness stretch parameter to avoid Poisson locking. Moreover, Kirchhoff-Saint Venant model used derive kinetic quantities. Next, FE formula in Total Lagrangian form obtained, and three-node two-node reduced integration employed shear Finally, evaluate performance formulations, some examples provided. results prove that current formulation very good agreement those available literature. More importantly, capable predicting experimental high accuracy.

Language: Английский

Citations

1
Rubber Mandrel and Internal Pressure Effects on Thin-Walled Tube Bending: A Comparative Study DOI
Majid Askari Sayar, Mahdi Gerdooei, Hamidreza Eipakchi

et al.

Research Square (Research Square), Journal Year: 2024, Volume and Issue: unknown

Published: July 3, 2024

Abstract Tube bending plays a crucial role in various industrial sectors, ranging from aerospace, military, and petrochemical to automotive manufacturing. However, persistent challenge this process is the occurrence of springback, which disrupts intended shape bent tubes affects product assembly. While previous research has primarily focused on predicting managing springback using simplified biaxial stress assumptions, influence radial normal (internal pressure) often been overlooked, particularly modern techniques like hydroforming rubber pad forming. In study, comprehensive investigation into impact internal pressure during tube was undertaken, employing analytical, numerical, experimental methodologies. The utilization mandrel thin-walled effectively reduces angles by up 9.86% compared without it. numerical simulation demonstrates stronger agreement with data, highlighting importance generated mandrel's contact stress. This contributes increasing plastic strain level, extending skin, removing elastic core, subsequently reducing springback.

Language: Английский

Citations

0