Results 11 to 20 of about 2,444,099 (183)

Affecting the Determination of Forming Limit Diagram for Sheet Metals

Tikrit Journal of Engineering Sciences, 2005
The sheet metal forming is defined as the ability of metal to deform plastically (stretch forming) without necking or fracture. To control the sheets forming operation failure a diagram is used , in which the ; accepted forming , failure and critical ...
Walid Jalal Ali, Anas Obed Idres
doaj   +2 more sources

Theoretical Forming Limit Diagram Based on Induced Stress in the Thickness Direction

Metals, 2023
The conventional theoretical forming limit diagram (FLD) based on the plane stress state has defects due to the neglect of the stress in the thickness direction of the sheet.
Haibo Wang, Zipeng Wang
doaj   +2 more sources

Acquisition and Evaluation of Theoretical Forming Limit Diagram of Al 6061-T6 in Electrohydraulic Forming Process

Metals, 2019
The current study examines the forming limit diagram (FLD) of Al 6061-T6 during the electrohydraulic forming process based on the Marciniak–Kuczynski theory (M-K theory).
Min-A Woo, Woo-Jin Song, Beom-Soo Kang, Jeong Kim   +3 more
doaj   +2 more sources

Forming limit diagram of an ultra-thin commercially pure titanium sheet: Combined experimental–numerical approach

Journal of Materials Research and Technology
This study presents a methodology for determining the forming limit diagram (FLD) of an ultra-thin (0.1 mm) commercially pure titanium (CP–Ti) sheet developed for use in metallic bipolar plates for fuel cells.
Kyung Mun Min, Chanyang Kim, Seonghwan Choi, Jong-Hwa Hong, Jinwoo Lee, Hyuk Jong Bong   +5 more
doaj   +2 more sources

Application of the DIC System to Build a Forming Limit Diagram (FLD) of Multilayer Materials

Key Engineering Materials, 2022
The extraordinary combination of strength and ductility of multilayered materials makes them attractive in the various applications and industries (military, aerospace, energy industry etc.). In the present work, the investigated materials were joined into multilayered sheet using the explosive welding method.
Paulina Lisiecka-Graca, Marcin Kwiecień, Łukasz Madej, Janusz Majta, Krzysztof Muszka   +4 more
openaire   +1 more source

Experimental And Finite Element Studies of Stretch Forming Process for AA2014 Alloy At Elevated Temperature [PDF]

E3S Web of Conferences, 2023
Sheet metal forming operations play a crucial role in the manufacturing process of various products. However, the challenge of plastic instability, which often leads to defective products, continues to persist in this field.
Satyanarayana Kosaraju, Babu Kuraku Ratna, Baloji Dharavath, Chary Sriramoji Vilas, Kumar Chintha Pranay, Chowdary Dodda Yaswanth, Gatea M. Abdulfadhil, Ahmad Ishteyaaq   +7 more
doaj   +1 more source

Determining Localized Necking in Polycrystalline Sheet Metals Using the Bifurcation Phenomenon in Strain Evolution

Crystals, 2023
The forming limit is an important failure criterion for polycrystalline sheet metals when approving the forming process. Recent developments in strain measurement technology, e.g., digital image correlation (DIC), enable the strain evolution to be ...
Ji He, Yishuang Feng
doaj   +1 more source

Insight into the Influence of Punch Velocity and Thickness on Forming Limit Diagrams of AA 6061 Sheets—Numerical and Experimental Analyses

Metals, 2021
In this article, the forming limit diagram (FLD) for aluminum 6061 sheets of thicknesses of 1 mm and 3 mm was determined numerically and experimentally, considering different punch velocities.
Sasan Sattarpanah Karganroudi, Shahab Shojaei, Ramin Hashemi, Davood Rahmatabadi, Sahar Jamalian, Ahmad Aminzadeh, Hussein Ibrahim   +6 more
doaj   +1 more source

Ellipticity loss analysis for tangent moduli deduced from a large strain elastic–plastic self-consistent model [PDF]

, 2009
In order to investigate the impact of microstructures and deformation mechanisms on the ductility of materials, the criterion first proposed by Rice is applied to elastic–plastic tangent moduli derived from a large strain micromechanical model combined ...
LORRAIN, Jean-Paul, LEMOINE, Xavier, BERVEILLER, Marcel, ABED-MERAIM, Farid, FRANZ, Gérald, BEN ZINEB, Tarak   +5 more
core   +1 more source

Comparison of nonlinear strain path correction models for the FLD characterization [PDF]

MATEC Web of Conferences
The Forming Limit Diagram (FLD), along with the Forming Limit Curve (FLC) it encompasses, are widely used tools in sheet metal forming to predict the forming behavior of sheet metal.
Mainguy Grégoire, Balan Tudor, Lemoine Xavier   +2 more
doaj   +1 more source