Results 61 to 70 of about 31,906 (280)

Phase Field Failure Modeling: Brittle‐Ductile Dual‐Phase Microstructures under Compressive Loading

Advanced Engineering Materials, EarlyView.
The approach by Amor and the approach by Miehe and Zhang for asymmetric damage behavior in the phase field method for fracture are compared regarding their fitness for microcrack‐based failure modeling. The comparison is performed for the case of a dual‐phase microstructure with a brittle and a ductile constituent.
Jakob Huber, Jan Torgersen, Ewald Werner
wiley   +1 more source

Simulation of fatigue crack opening in alloy D16T under constant amplitude loading using finite element method [PDF]

, 2013
Створено модель плоского зразка з центральною тріщиною в пружно-пластичній постановці за допомогою методу скінченних елементів. Обґрунтовано вибір розмірів скінченних елементів в околі вістря тріщини.
Fostyk, V., Galushchak, O., Pyndus, Y., Yasniy, P., Галущак, О., Пиндус, Юрій Іванович, Фостик, Василь Богданович, Ясній, Петро Володимирович   +7 more
core  

Modeling water penetration at dam-foundation joint [PDF]

, 2007
When fracture occurs in a concrete dam, the crack mouth is typically exposed to water. Very often this phenomenon occurs at the dam-foundation joint and is driven also by the fluid pressure inside the crack.
Bolzon, Brühwiler, Brühwiler, Carol, Carol, Cocchetti, F. Barpi, Hillerborg, Reich, S. Valente, Červenka   +10 more
core   +2 more sources

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

Experimental and analytical study of cracks under biaxial fatigue [PDF]

, 2016
Most mechanical components experience multi-axial cyclic loading conditions during service. Experimental analysis of fatigue cracks under such conditions is not easy and most works tend to focus more on the simpler but less realistic case of uni-axial ...
Camas, Daniel, Lopez-Crespo, Pablo, Lopez-Moreno, A, Mokhtarishirazbad, M, Moreno-Morales, Maria Belen, Zanganeh, M   +5 more
core  

On‐Surface Indigo‐Based Bimolecular Coordination Networks with Programmable Regular or Vitreous Structure

Advanced Functional Materials, EarlyView.
A previously unreported coordination motif stabilising single Fe atoms by indigo chelation and pyridyl coordination on Au(111) has been revealed. By using planar tritopic pyridyl linkers (TPyB), extended 2D porous networks of indigo3(TPyB)2Fe6 form. These networks can be crystalline or vitreous and offer an environment where individual coordination ...
Hongxiang Xu, Ritam Chakraborty, Biao Yang, Dennis Meier, Joachim Reichert, Svetlana Klyatskaya, Mario Ruben, Shobhana Narasimhan, Johannes V. Barth, Anthoula C. Papageorgiou   +9 more
wiley   +1 more source

Golden‐Ratio–Guided Aperiodic Architected Metamaterials with Simultaneously Enhanced Strength and Toughness

Advanced Functional Materials, EarlyView.
Guided by the golden ratio, a class of aperiodic architected metamaterials is introduced to address the intrinsic trade‐off between strength and toughness. By unifying local geometric heterogeneity with global order, the golden‐ratio‐guided aperiodic architecture promotes spatial delocalization of damage tolerence regions, leading to more tortuous ...
Junjie Deng, Xinxin Wang, Ruochao Zhao, Zhendong Li, Kai Liu, Ke Yuan, Jia An, Xinwei Li, Chee Kai Chua, Zhonggang Wang   +9 more
wiley   +1 more source

Programmable DNA‐Peptide Hybrid Nanostructures for Potent Neutralization of Multiple Influenza a Virus Subtypes

Advanced Functional Materials, EarlyView.
A multivalent antiviral platform based on honeycomb‐shaped DNA nanostructures (HC–Urumin) is developed to enhance the potency and breadth of the host defense peptide Urumin. Through spatially patterned trimeric presentation, HC–Urumin disrupts influenza A virus entry, improves cell viability, and reduces disease severity in vivo‐offering a modular and ...
Saurabh Umrao, Abhisek Dwivedy, Payton L. Haak, Dhanush Gandavadi, Laurie A. Rund, Chi Chen, Vineetha Mareddy, Lifeng Zhou, Jinwei Duan, Ying Fang, Andrew J. Steelman, Xing Wang   +11 more
wiley   +1 more source

Selective Charge Injection via Topological van der Waals Contacts for Barrier‐Free p‐Type TMD Transistors

Advanced Functional Materials, EarlyView.
 Topological van der Waals contacts represent a new class of electrodes for 2D semiconductors, enabling precise control of the Schottky barrier height (SBH) and contact resistance (RC) through interlayer distance and orbital hybridization engineering. In Se‐based transition metal dichalcogenides, these contacts achieve an ultralow SBH of 7 meV, RC of 0.
Soheil Ghods, Ho‐Chan Jang, Jun‐Hui Choi, Min Woo Kim, Hyunjin Lee, Tae‐Hoon Kim, Keun Heo, Hyung Jun Kwun, Taehun Lee, Yoon Kyeung Lee, Sang Hoon Lee, Seung‐Il Kim, Woonhyuk Baek, Sukang Bae, Ji‐Yun Moon, Jae‐Hyun Lee   +15 more
wiley   +1 more source

Evaluation of the stress singularities of plane V-notches in bonded dissimilar materials [PDF]

, 2008
According to the linear theory of elasticity, there exists a combination of different orders of stress singularity at a V-notch tip of bonded dissimilar materials. The singularity reflects a strong stress concentration near the sharp V-notches.
Ascher, Barsoum, Bogy, Carpenter, Carpinteri, Changzheng Cheng, Chen, Chue, Dali Ge, Delale, Fu, Gadi, Gladwell, Gross, Henshel, Hwu, Hwu, Jian, Jianqiao Ye, Labossiere, Li, Naman Recho, Niu, Pageau, Rzasnicki, Seweryn, Stern, Stroh, Sue, Tan, Ting, Ting, Wigger, Williams, Williams, Yosibash, Zhongrong Niu   +36 more
core   +1 more source