Results 51 to 60 of about 146,354 (251)

Viscoelasticity‐Induced Controllable Periodic Meso‐Textures of Liquid Crystal Polymers in Additive Manufacturing

Advanced Functional Materials, EarlyView.
Viscoelasticity‐driven instabilities are harnessed to create tunable, periodic textures in 3D‐printed liquid crystalline polymers. This study illustrates how processing parameters control these spontaneous meso‐scale patterns. These unique structural architectures unlock new possibilities for functional devices, ranging from photonic components to ...
Miaomiao Zou, Jiongyi Yan, Dick F. Firdaus, Amy Jin, Jiaxuan Li, Shushan Wang, Ran Chen, Xudong Tao, Zehao Ji, Yi Liu, Zichen Wang, Christos Margadji, Mark Kotter, J. Axel Zeitler, George G. Malliaras, Ronan Daly, Andrew Gleadall, Sebastian W. Pattinson   +17 more
wiley   +1 more source

Elastic Instability behind Brittle Fracture

Physical Review Letters
We argue that nucleation of brittle cracks in initially flawless soft elastic solids is preceded by a nonlinear elastic instability, which cannot be captured without accounting for geometrical precise description of finite elastic deformation. As a prototypical problem we consider a homogeneous elastic body subjected to tension and assume that it is ...
Riccobelli, D., Ciarletta, P., Vitale, G., Maurini, C., Truskinovsky, L.   +4 more
openaire   +6 more sources

Adaptive 4D‐Printed Vascular Stents With Low‐Temperature‐Activated and Intelligent Deployment

Advanced Functional Materials, EarlyView.
Microarchitected coronary artery stents were fabricated using a polycaprolactone (PCL)‐based shape memory polymer (SMP) composite via projection micro‐stereolithography (PµSL) 4D printing. By incorporating diethyl phthalate (DEP) as a plasticizer, the thermal transition temperature (Ttran) was modulated to about 37°C, enabling rapid and autonomous ...
Yannan Li, Yifan Pan, Chikahiro Imashiro, Chaolun Xu, Jianxian He, Jingao Xu, Kewei Song, Ze Zhang, Chen Gao, Junbo Jiang, Runhuai Yang, Kayo Hirose, Shinjiro Umezu   +12 more
wiley   +1 more source

Toughening β‐Ga2O3 via Mechanically Seeded Dislocations

Advanced Functional Materials, EarlyView.
β‐Ga2O3 is promising for next‐generation semiconductors but its brittleness limits flexible and high‐precision applications. Here, mechanically seeded dislocations introduced by surface deformation improved damage tolerance in (001) β‐Ga2O3. Nanoindentation and characterization show dislocations suppress cleavage cracks by enabling stable plastic ...
Zanlin Cheng, Jiawen Zhang, Peng Gao, Guosong Zeng, Xufei Fang, Wenjun Lu   +5 more
wiley   +1 more source

Nanoscale damage during fracture in silica glass [PDF]

, 2006
We report here atomic force microscopy experiments designed to uncover the nature of failure mechanisms occuring within the process zone at the tip of a crack propagating into a silica glass specimen under stress corrosion.
Bonamy, Daniel, Bouchaud, Elisabeth, Dalmas, Davy, Guillot, Claude, Ponson, Laurent, Prades, Silke, Ravi-Chandar, K., Rountree, Cindy   +7 more
core   +2 more sources

Asperity contacts at the nanoscale: comparison of Ru and Au

, 2008
We develop and validate an interatomic potential for ruthenium based on the embedded atom method framework with the Finnis/Sinclair representation.
Andrea Fortini, Bacon, David Srolovitz, Legrand, Mikhail I. Mendelev, Sergey Buldyrev, Song   +6 more
core   +1 more source

Block Copolymers: Emerging Building Blocks for Additive Manufacturing

Advanced Functional Materials, EarlyView.
This review addresses how block copolymer (BCP) physics and rheology have led to the widespread use of BCPs in advanced additive manufacturing techniques, with particular emphasis on the untapped potential of these nanostructured materials toward achieving multi‐scale architected materials with unique, programmable material properties.
Alice S. Fergerson, Hemish B. Thakkar, Jiaen Wu, Emily C. Davidson   +3 more
wiley   +1 more source

Failure Probabilities and Tough-Brittle Crossover of Heterogeneous Materials with Continuous Disorder

, 1998
The failure probabilities or the strength distributions of heterogeneous 1D systems with continuous local strength distribution and local load sharing have been studied using a simple, exact, recursive method.
B. Kahng, B. Q. Wu, D. G. Harlow, Didier Sornette, Niu-Niu Chen, P. L. Leath, P. M. Duxbury, P. M. Duxbury, S. Zapperi, W. A. Curtin   +9 more
core   +1 more source

Switchable Supramolecular Adhesive by Tuning Interfacial Bonding and Modulus

Advanced Functional Materials, EarlyView.
The supramolecular adhesive (HyDiP) shows reversible adhesion and recyclability. In the dehydrated state, it is dense, stiff (E ≈445 MPa), transparent, and provides strong bonding with adhesion strengths up to 4.65 MPa. In the hydrated state, it becomes porous, soft (E ≈0.11 MPa), and detaches easily, enabling sustainable high‐strength applications ...
Rumin Fu, Cairong Xiao, Zihao Du, Changhong Linghu, Yongdong Shi, Chuyang Xiang, Mingxin Wan, Guoxin Tan, Limin Lu, Chengyun Ning, K Jimmy Hsia   +10 more
wiley   +1 more source

Experimental analysis of the fatigue life of threaded pipe connections under cyclic bending [PDF]

, 2012
When subjected to cyclic loads, fatigue cracks can cause failure of pipe systems joined by threaded pipe connections. In this study, the effect of contact conditions and coupling geometry is investigated experimentally. Fatigue tests under cyclic bending
De Baets, PatrickTW08TW51TW568010007297790000-0002-0552-3850F46EAEFE-F0ED-11E1-A9DE-61C894A0A6B4, De Waele, WimTW088010011377850000-0002-7196-3328F52E8652-F0ED-11E1-A9DE-61C894A0A6B4, Galle, TimothyTW08002005165105802000907691307428C0-F0EE-11E1-A9DE-61C894A0A6B4, Hertelé, StijneditorTW080020033634308020004272400000-0001-5352-1924FAEFEAD6-F0ED-11E1-A9DE-61C894A0A6B4, Van Wittenberghe, JeroenUGent002001090495802000048637F863E11E-F0ED-11E1-A9DE-61C894A0A6B4   +4 more
core   +1 more source