Effect of internal pressure and shape imperfections on plastic loads of pipe bends under in-plane closing moment

TC Michael, AR Veerappan, S Shanmugam - Engineering Fracture …, 2013 - Elsevier
The influence of internal pressure and shape imperfections of pipe bends on collapse load
was investigated under in-plane closing bending moment using finite element limit analysis …

A novelty mandrel supported thin-wall tube bending cross-section quality analysis: a diameter-adjustable multi-point contact mandrel

J Li, Z Wang, S Zhang, Y Lin, L Wang, C Sun… - The International Journal …, 2023 - Springer
The mandrel plays a vital role in metal tube bending limit improvement and high-quality
achievement. For the bending forming process of metal tubes with different diameters, the …

An overview of pipe bending methods and defects produced for the development of an improved pipe bending mechanism

M Dakhore, A Kale - Advances in Materials and Processing …, 2024 - Taylor & Francis
The pipe bending process is one of the prominent manufacturing technologies in metal
forming. Bent pipes have been widely used in various industrial products such as …

Development of bending of AISI 304L micro-tubes with micro-wire mandrel and investigation of its effective parameters

M Roein, M Elyasi, MJ Mirnia - Journal of Manufacturing Processes, 2021 - Elsevier
In this paper, a novel method for bending micro-tubes at room temperature has been
developed. For this purpose, a bending apparatus has been designed and manufactured to …

Effect of bending on radial distribution density, MFA and MOE of bent bamboo

X Wang, J Ma, W Xu, B Fei, C Lian, F Sun - Scientific Reports, 2022 - nature.com
One of the excellent characteristics of bamboo is the deformation stability. However, the
reasons for the good bending stability of bamboo have not been well studied. In this study …

Limit loads for 180 pipe bends under in-plane bending moment considering geometric nonlinearity

J Li, CY Zhou, JG Zhu - International Journal of Pressure Vessels and …, 2020 - Elsevier
This paper is dedicated to providing a detailed limit load analysis for 180° pipe bends under
bending moment using three dimensional finite element (FE) method considering geometric …

A weighted unification yield criterion and its application in analysis of burst pressure of pipe elbow

SH Zhang, JR Liu, XY Liu - International Journal of Pressure Vessels and …, 2021 - Elsevier
In order to solve the problem of insufficient accuracy in predicting the burst pressure of a
pipe elbow based on the existing yield criteria, a new yield criterion is established firstly and …

Plastic limit loads for pipe bends under combined bending and torsion moment

J Li, CY Zhou, P Cui, XH He - International Journal of Mechanical Sciences, 2015 - Elsevier
In present paper, 3D finite element (FE) method is used to determine plastic limit load
solutions for pipe bends under combined bending and torsion moment. With a detailed …

Limit load analysis of thin-walled as-fabricated pipe bends with low ovality under in-plane moment loading and internal pressure

SS Sorour, M Shazly, MM Megahed - Thin-Walled Structures, 2019 - Elsevier
The fabrication of pipe bends using rotary pipe bending (RPB) process results in
geometrical imperfections as described by cross-sectional ovality and wall thickness …

Fracture assessment of mismatched girth welds in oval-shaped clad pipes subjected to bending moment

HS Zhao, ST Lie, Y Zhang - International Journal of Pressure Vessels and …, 2018 - Elsevier
This paper provides an engineering assessment of an oval-shaped clad pipes with a
circumferential part-through surface crack subjected to bending moment based upon …