Results 111 to 120 of about 31,128 (147)
Some of the next articles are maybe not open access.
A study of formability of palm leaf materials using Limiting Dome Height testing
MRS Communications, 2021Deformation response of Areca catechu palm leaf-sheath under biaxial stretching is evaluated using Limiting Dome Height (LDH) testing. It is shown that the leaf material has high formability, with biaxial limit strains ~ 0.4, comparable to that of ductile sheet metals.
Debapriya Pinaki Mohanty +4 more
openaire +1 more source
Prediction of Limit Strains in Limiting Dome Height Formability Test
AIP Conference Proceedings, 2007In this paper, the Marciniak‐Kunczynski (MK) method is combined with the Storen‐Rice analysis in order to improve accuracy of the predicted limit strains in Limiting Dome Height (LDH) test. FEM simulation is carried out by means of a commercial FEM code (ABAQUS) and FEM results are postprocessed by using an improved MK code.
Amir A. Zadpoor +2 more
openaire +1 more source
Effect of reverse dome stretching on dome height and forming limits of sheet materials
Materials Science and Engineering: A, 2005Reverse bending and stretching of sheet materials is often employed in press forming of complex automotive components. In this work, hemispherical dome stretching tests were followed by reverse dome tests on automotive aluminum sheet specimens to assess the influence of the strain and shape on dome height at neck formation and limit strains.
M. Jain, J. Allin, X. Duan, D.J. Lloyd
openaire +1 more source
Prediction of limiting dome height using neural network and finite element method
The International Journal of Advanced Manufacturing Technology, 2005Using neural network to predict limiting dome height (LDH) based on the result of finite element analysis is a high efficiency work in spite of little error. Finite element results are presented with different working condition parameters, such as material thickness, punch speed, friction coefficient between punch, die and sheet metal, and blank holder
Lin Wang, T.C. Lee
openaire +1 more source
Limit dome height and failure location of stainless steel tailor-welded blanks
Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 2007Forming limits of stainless steel tailor-welded blanks (TWBs) are investigated through both testing and numerical simulation. Limit dome height (LDH) tests were performed for 1.2/1.0 mm TWBs with 0°, 90°, 45° weldment orientations and various blank widths. Numerical simulation of the LDH test was conducted with LSDYNA.
M Jie, C H Cheng, C L Chow, L C Chan
openaire +1 more source
Numerical and Experimental Investigation of Friction Effect in Limiting Dome Height Test
Journal of Testing and Evaluation, 2016Abstract In this study, the effect of friction in limiting dome height test was investigated numerically and experimentally. Ultra-low-carbon galvanized steel sheets were used as a test material. The thickness of the material was 1.2 mm.
Şener, Bora, Kayali, E. Sabri
openaire +2 more sources
Effects of clamp force in Limiting Dome Height (LDH) Test
Journal of Materials Shaping Technology, 1991The effects of specimen width and blankholder (clamp) force on LDH were investigated in tests with bare DDQ SK steel strip. Specimen width ranged from 109 to 143 mm (4.29 to 5.63 in.). The die set comprised a ball-bearing ball punch of 101.6 mm (4 in.) diameter and blankholders with a triangular clamping bead. Clamp forces ranged from 100 to 500 kN (11.
John A. Schey, Rolf F. Fischer
openaire +1 more source
The Limiting Dome Height Test for Assessing the Formability of Sheet Steel
SAE Technical Paper Series, 1985<div class="htmlview paragraph">The Limiting Dome Height (LDH) test has attracted much interest as a simulative tool for predicting press performance of materials. However, problems of test reproducibility have been observed. An experimental evaluation has been performed to determine the possible source or sources of these problems.
D. J. Meuleman +2 more
openaire +1 more source
The Limiting Dome Height Tests and Formability of Magnesium Alloy Sheet AZ31B
Applied Mechanics and Materials, 2013The assembly of the limiting dome height tests is developed to evaluate the formability of the magnesium alloy sheet AZ31B. The influence of forming conditions on the formability of AZ31B sheet is investigated by limiting dome height tests. The limiting bulging coefficient is used to represent the formability of AZ31B sheet in the tests.
Xin Wu Ma, Fang Wang, Guo Qun Zhao
openaire +1 more source
International Journal of Material Forming, 2014
Warm forming has some important advantages, the most significant being that forming limit strains increase at elevated temperatures. To quantify this advantage for an AA3003 brazing sheet, forming limit diagrams were determined using warm tooling developed to perform limiting dome height (LDH) experiments together with a digital image correlation (DIC)
Reza Bagheriasl, Michael J. Worswick
openaire +1 more source
Warm forming has some important advantages, the most significant being that forming limit strains increase at elevated temperatures. To quantify this advantage for an AA3003 brazing sheet, forming limit diagrams were determined using warm tooling developed to perform limiting dome height (LDH) experiments together with a digital image correlation (DIC)
Reza Bagheriasl, Michael J. Worswick
openaire +1 more source