Results 51 to 60 of about 612,190 (327)
Development of novel forming limit curve testing method
IOP Conference Series: Materials Science and Engineering, 2018 A new concept of the forming limit curve testing method has been developed for evaluating sheet metal formability. This new method complies with the current ISO 12004-2 standard, and has been verified by the numerical analysis in terms of specimen deformation, strain path characterization and lubrication effect. It combines the advantages from both the
Z Deng, J P McGuire
openaire +1 more source
In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS
FEBS Letters, EarlyView.We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka +11 more
wiley +1 more source
Investigations on the Formability of Incremental Punching Process
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2011 It was reported that the incremental sheet metal forming (ISMF) produces larger deformations as compared to the conventional forming processes. We developed a new ISMF method based on incremental punching. In this study, a theoretical method based on M-K
Yuanxin LUO, Kai HE, Ruxu DU
doaj +1 more source
A Modified M-K Method for Accurate Prediction of FLC of Aluminum Alloy
Metals, 2021 Forming limit curve (FLC) is an important failure criterion for sheet metals in sheet metal forming, while the M-K model is widely used for the prediction of the FLC.
Xiaoxing Li +3 more
doaj +1 more source
Infrared spectroscopy of Nova Cassiopeiae 1993 (V705 Cas). IV. A closer look at the dust
, 2005 Nova Cassiopeiae 1993 (V705 Cas) was an archetypical dust-forming nova. It displayed a deep minimum in the visual light curve, and spectroscopic evidence for carbon, hydrocarbon and silicate dust.
A. Evans +53 more
core +2 more sources
Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions
FEBS Letters, EarlyView.We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva +10 more
wiley +1 more source
Study of prestrain influence for the prediction of the necking occurrence
Vietnam Journal of Mechanics, 1999 This paper contains experimental results for mechanical characteristics of a mild steel sheet. The determination of the forming limit stress curve for solicitation along two direction is drawn.
Nguyen Nhat Thang
doaj +1 more source
Secondary ageing and formability of an Al-Cu-Mg alloy (2024) in W and under-aged tempers
Materials & Design, 2023 AA2024, a high-strength aluminum wrought alloy, is widely used in the production of aircraft components, for example, frames and stringers. While the alloy is relatively soft and formable in the solution heat treated and quenched state (W temper), rapid ...
J.A. Österreicher +8 more
doaj +1 more source
A review on formability prediction and constitutive damage models of sheet forming of magnesium alloys [PDF]
, 2016 In recent years, the demand for using magnesium (Mg) alloys has significantly increased in several industrial fields. Due to their favorable strength/weight ratio thus Mg alloy demonstrating a valid replacement for aluminum alloys and High Strength ...
Farouk, M., Mohamed, M.
core
SN 2007uy - metamorphosis of an aspheric Type Ib explosion
, 2013 The supernovae of Type Ibc are rare and the detailed characteristics of these explosions have been studied only for a few events. Unlike Type II SNe, the progenitors of Type Ibc have never been detected in pre-explosion images.
Chandola, H. C. +15 more
core +1 more source