Article
Chemistry, Multidisciplinary
Teunis van Manen, Mahya Ganjian, Khashayar Modaresifar, Lidy E. E. Fratila-Apachitei, Amir A. A. Zadpoor
Summary: Folding nanopatterned flat sheets into complex 3D structures allows for the fabrication of meta-biomaterials with desirable 3D architecture and nanoscale surface features. This study demonstrates the first realization of automatically folded origami lattices with bone-mimicking mechanical properties. The proposed approach is highly scalable and versatile, with potential applications in various fields.
Article
Biology
Linfeng Cao, Ziwen Meng, Junjie Tan, Ming Ying, Meiying Bi, Yanjun Liu, Xinrui Tong, Jiaxun Wei, Lei Huang
Summary: This study developed DNA nanoparticles (citZ-boxes) for automatic loading and releasing of cargo. Using restriction enzyme cleavage, the enhanced green fluorescent protein (eGFP) gene was delivered into B. subtilis protoplasts, resulting in eGFP expression.
COMMUNICATIONS BIOLOGY
(2022)
Article
Materials Science, Multidisciplinary
A. Rouzbeh, M. Sedighi, R. Hashemi
Summary: In this research, the effect of strain path on the microstructure, mechanical properties and forming limit diagram of roll-bonded Al/Mg two-layer sheet was experimentally investigated. The results showed that cross rolling produced a more uniform microstructure and no delamination occurred in the fabrication of bilayer sheets with two passes. Cross-rolled samples exhibited the best mechanical properties in terms of ultimate tensile strength and elongation. Additionally, cross rolling significantly reduced normal anisotropy. The forming limit diagram of cross-rolled samples exhibited an increase in FLD0 by 15.6%, 13.8%, and 5.7% compared to single-pass, two-pass direct rolling, and two-pass reverse rolling samples, respectively.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Engineering, Electrical & Electronic
Gabriela Vincze, Antonio B. Pereira, Diogo A. F. Lopes, Jesus M. Yanez, Marilena C. Butuc
Summary: Asymmetric rolling is a method to improve the performance of sheet metals. This study investigates the effect of asymmetric rolling on an aluminum alloy used in the automotive industry. The results show that all rolling conditions lead to increased strength and decreased formability. Adequate heat treatment after rolling can achieve a reasonable combination of high strength and acceptable formability.
Article
Materials Science, Multidisciplinary
Zhuo-Huang Wu, Qi-Jia Mao, Fu-An Hua, Guang-Lin Jia, Jian-Ping Li, Cheng-Gang Li, Guo Yuan, Guo-Dong Wang
Summary: This study investigated the effects of different heat treatment processes on the microstructure and properties of an aluminum alloy thin slab. The results showed that homogenization treatment improved the mechanical properties of the alloy. The alloy processed through direct rolling still maintained good mechanical properties.
Article
Engineering, Industrial
S. Deb, S. K. Panigrahi, M. Weiss
Summary: The study shows that cryo-rolled UFG aluminum with nano-particle strengthening and annealing heat treatment has higher material strength and formability compared to the unreinforced UFG condition. While nano-particle strengthening does not significantly affect tensile ductility, it reduces the bend fracture limit due to increased dislocation density and a diffuse sub-grain structure. The forming limit curves of all UFG materials were significantly higher than their uniform tensile elongation and hardening index, attributed to a high strain-rate sensitivity that increased with annealing heat treatment.
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
(2021)
Article
Mechanics
Aileen G. Bowen, Giovanni Zucco, Paul M. Weaver
Summary: The design of composite flexible hinges using Brazier phenomena can avoid added weight and complexity. This study aims to verify similarities between Brazier phenomena for circular and aerofoil cross-sections through finite element analyses.
COMPOSITE STRUCTURES
(2023)
Article
Materials Science, Multidisciplinary
Akihide Hosokawa, Natsuki Yoneyama, Isao Nakanowatari, Haruki Eguchi, Kenta Takagi
Summary: A modified powder rolling technique was developed to consolidate aligned monocrystalline Sm-Fe-N fine particles into magnet sheets. The magnet sheets exhibited a maximum energy product of 123 kJ/m(3), comparable with reported values but still not as strong as practical permanent magnets. Possible strategies to further improve magnet performance were briefly discussed.
Article
Engineering, Civil
Ting Yang, Deju Zhu, Chao Chen
Summary: This paper investigates the performance and failure mechanism of sandwich panels prepared with alkali resistant-glass textile reinforced concrete and expanded polystyrene granular mortar. Through bending tests and theoretical prediction, the influences of reinforcement layers, core thickness, and interface ribs on the panels are analyzed.
THIN-WALLED STRUCTURES
(2023)
Article
Materials Science, Multidisciplinary
Sergei Alexandrov, Elena Lyamina
Summary: The present paper presents an accurate solution for finite plane strain bending of a rigid/plastic sheet under tension using a general material model for strain-hardening viscoplastic materials. The study shows that the loading speed parameter has a significant effect on the bending moment and stress distribution.
Article
Materials Science, Multidisciplinary
Salikhyanov Denis, Kamantsev Ivan, Michurov Nikolay
Summary: Innovations in important industries rely on using hard-to-deform materials for product manufacturing. Rolling in a ductile shell is a promising technology, but it faces challenges such as dog boning effect and shell delamination. This study used finite element simulation to analyze and propose a new two-layer shell design, demonstrating improvements in process parameters and potential for real manufacturing processes.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Chemistry, Multidisciplinary
Stefan Markulik, Anna Nagyova, Renata Turisova, Tomas Villinsky
Summary: Hot rolling of steel sheets is an energy-intensive process which can be affected by rolled foreign material leading to surface quality issues. Through analysis and verification, it was found that the root cause of the problem was the guide rulers of the rolling mill. Measures taken successfully reduced the incidence of the issue and financial losses.
APPLIED SCIENCES-BASEL
(2021)
Article
Nanoscience & Nanotechnology
Dongdong Zhang, Liying Bao, Qiang Li, Jiaping Han, Yuyong Chen
Summary: The room temperature brittleness of TiAl alloy can be improved by refining the microstructure and adjusting the composition. TiAl alloy sheets were prepared through hot isostatic pressing and hot pack rolling, and the microstructure and properties during hot rolling were studied. An ultrahigh ductility TiAl alloy was successfully prepared by introducing twins, purifying matrix with Y element, and achieving high sphericity grains. The TiAl sheet exhibits a room temperature elongation of 3.0% and an elongation of 65% at 700 degrees C, which can be attributed to the formation of twins, purifying effect of Y element, and stress concentration reduction by spherical grains.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2023)
Article
Nanoscience & Nanotechnology
Nikolai Matukhno, Nemanja Kljestan, Sven C. Vogel, Marko Knezevic
Summary: This paper presents the results of an experimental investigation into the effect of cyclic bending under tension on the elongation-to-fracture (ETF) and strength of AZ31 sheets. The study found that the use of a continuous-bending-under-tension (CBT) apparatus can enhance ETF to some extent. However, the improvements in ETF are relatively small due to the uniform elongation of the alloy. The analysis of grain structure and texture evolution shows that slip-dominated deformation and twinning followed by detwinning occur during the process. Additionally, the study explores the tradeoff between strength and ductility by subjecting the alloy to a certain number of CBT cycles followed by heat treatments (HT). The findings reveal that the strength of the alloy can be increased by over 30% while preserving at least 5% of its ductility.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2022)
Article
Chemistry, Physical
Ionel Gavrilescu, Doina Boazu, Felicia Stan
Summary: This paper proposes a hybrid numerical-analytical approach to investigate the three-roller bending process for two plates of steel used in the naval industry. Finite element method was used to model the bending process and regression models were constructed for bending force as a function of plate thickness and vertical displacement of the upper roller. Two analytical expressions for bending force were derived based on findings from FE analysis, and analytical expressions for vertical displacement of the upper roller as a function of the curvature of the bending plate were also developed. The results are of practical importance in designing rolling machines and estimating setting parameters.
Article
Biochemistry & Molecular Biology
Yuan-Hung Chien, Ray Keller, Chris Kintner, David R. Shook
Article
Developmental Biology
C. A. Hurney, S. K. Babcock, D. R. Shook, T. M. Pelletier, S. D. Turner, J. Maturo, S. Cogbill, M. C. Snow, K. Kinch
MECHANISMS OF DEVELOPMENT
(2015)
Article
Developmental Biology
Katherine Pfister, David R. Shook, Chenbei Chang, Ray Keller, Paul Skoglund
Article
Evolutionary Biology
David R. Shook, Ray Keller
JOURNAL OF EXPERIMENTAL ZOOLOGY PART B-MOLECULAR AND DEVELOPMENTAL EVOLUTION
(2008)
Review
Biology
Ray Keller, David Shook
PHILOSOPHICAL TRANSACTIONS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2008)
Article
Biology
David R. Shook, Jason W. H. Wen, Ana Rolo, Michael O'Hanlon, Brian Francica, Destiny Dobbins, Paul Skoglund, Douglas W. DeSimone, Rudolf Winklbauer, Ray E. Keller
Summary: Convergent thickening (CT) is a process of mediolateral convergence and radial thickening in the explanted ventral involuting marginal zone (IMZ) of Xenopus gastrulae. This study demonstrates that CT occurs in all sectors of the pre-involution IMZ and transitions to convergent extension (CE) after involution. CT is driven by increased interfacial tension between the deep IMZ and the overlying epithelium, resulting in symmetric blastopore closure in ventralized embryos.
Article
Biology
David R. Shook, Eric M. Kasprowicz, Lance A. Davidson, Raymond Keller
Article
Evolutionary Biology
David R. Shook, Ray Keller
JOURNAL OF EXPERIMENTAL ZOOLOGY PART B-MOLECULAR AND DEVELOPMENTAL EVOLUTION
(2008)
Review
Developmental Biology
DR Shook, C Majer, R Keller
DEVELOPMENTAL BIOLOGY
(2004)
Review
Cell Biology
R Keller, LA Davidson, DR Shook
Article
Developmental Biology
DR Shook, C Majer, R Keller
DEVELOPMENTAL BIOLOGY
(2002)
Review
Biochemistry & Molecular Biology
Ray Keller, David Shook, Paul Skoglund
Review
Developmental Biology
D Shook, R Keller
MECHANISMS OF DEVELOPMENT
(2003)