Results 31 to 40 of about 3,857 (239)

Principle of local symmetry in mixed-mode fracture

Communications Physics
When brittle materials are subjected to uniaxial tensile stress, we observe planar crack propagation perpendicular to the loading direction. However, when additionally subjected to an out-of-plane shear stress, the crack tip/front deviates, leading to ...
Laureano Ortellado, Anabella Abate, Angel Santarossa, Leopoldo R. Gómez, Thorsten Pöschel   +4 more
doaj   +1 more source

Dynamic mechanical behaviors and energy release mechanisms of energetic high-entropy alloys

Materials & Design
Energetic high-entropy alloys (EHEAs) synergistically combine the superior mechanical properties of high-entropy alloys with significant energy release capabilities under dynamic loading, showcasing broader application scenarios than brittle conventional
Hou-Cheng Xu, Hang Wang, Xia-Ying Ma, Zi-Han Zhang, Rong Chen   +4 more
doaj   +1 more source

Mechanism of grain refinement and its effect on Adiabatic Shear Bands in 4340 steel and pure copper during impact

EPJ Web of Conferences, 2015
Pre-deformation and post-deformation microstructure characterization was conducted on tempered 4340 steel and commercial pure copper specimens under impact to determine the microstructural changes and the mechanism of grain refinement that occur during ...
Bassim Nabil, Boakye-Yiadom Solomon
doaj   +1 more source

Bio‐Inspired Biopolymeric Implantable Platform for Localized and Sustained Drug Delivery in Solid Tumor Treatment

Advanced Functional Materials, EarlyView.
A bio‐inspired biopolymeric implantable drug delivery platform enables localized and sustained release of 7‐ethyl‐10‐hydroxycamptothecin (SN‐38) in solid tumor treatment. The three‐dimensional (3D) structured crosslinked‐chitosan implants are fabricated via 3D‐printed molds and provide drug release over 3 months, significantly inhibiting tumor growth ...
Mercedes Lozano‐Garcia, Constantine Vogiatzis, Alejandra Planells‐Devesa, Emre Dikici, Caroline Vieira Maluf, Vasudev Vivekanand Nayak, Paulo G. Coelho, Lukasz Witek, Alicia Bilbao, Daniel Bilbao, Prasoon Mohan, Sapna Deo, Sylvia Daunert   +12 more
wiley   +1 more source

Deep learning for quantitative dynamic fragmentation analysis

APL Machine Learning
We have developed an image-based convolutional neural network that is applicable for quantitative time-resolved measurements of the fragmentation behavior of opaque brittle materials using ultra-high speed optical imaging.
Erwin Cazares, Brian E. Schuster
doaj   +1 more source

Experimental study on material preparation and mechanical properties with of wave impedance gradient variation

矿业科学学报
To promote dynamic disaster prevention and blasting efficiency in deep mining, this study prepared wave-impedance rock materials by adjusting air-entraining agent content. Through nuclear magnetic resonance and uniaxial compression tests, we analyzed the
WANG Ruxia, LI Weiyu, TANG Xi, MA Xueqing, CHEN Hongxing   +4 more
doaj   +1 more source

Polymer Substrates for Flexible Sensors: Advances and Contributions to Smart Agriculture

Advanced Functional Materials, EarlyView.
This review comprehensively summarizes recent advances in polymer‐based flexible sensors for smart agriculture, focusing on polymer substrate design, interface engineering, and applications in soil, plant, animal, aquaculture, and post‐harvest monitoring.
Yihui Li, Zhangzheng Xiao, Zheng Yan, Adnan Raza Altaf, Qun Song, Dingding Yao, Afshan Sohail, Yixin Wang, Wenxiu Ma, Shanjun Li, Yaohui Chen, Peiwen Liu, Kai Zhang   +12 more
wiley   +1 more source

Increasing Inter‐Micellar Connectivity Toughens and Imparts Cooling‐Induced Shape Memory in Micellar Hydrogels

Advanced Functional Materials, EarlyView.
Oligomerizing Pluronic triblock copolymers provides a processing strategy for tuning the mechanical properties and stimuli‐responsive behaviors of micellar hydrogels. Varying oligomer fraction produces hydrogels spanning brittle to highly extensible responses; maintaining micellar architectures enables cooling‐induced reverse thermal shape memory and ...
Gourav Kumbhojkar, Eric Yang, Arman Moussavi, EunBi Oh, Haeji Kim, Wei Chen, Junsoo Kim, Sinan Keten, Ryan L. Truby   +8 more
wiley   +1 more source

Numerical simulation study of bird strike on windshield glass based on SPH-DEM coupling

Hangkong gongcheng jinzhan
Glass-type brittle materials are widely used in aircraft windshield structures, which are located at the front of the aircraft's windward side, and susceptible to fragmentation because of bird strikes.
LIU Zongxing, CAO Miao, SHENG Jiacheng, ZHANG Chunyang, LIU Jun   +4 more
doaj   +1 more source

Meniscus‐Guided Soft‐Lithographic Assembly of Grid‐Type Molecular Martensite Films for Single‐Crystal‐Like Actuation

Advanced Functional Materials, EarlyView.
A meniscus‐guided microtransfer molding strategy enables scalable fabrication of grid‐type molecular martensite films with b‐axis‐correlated preferential texture. Sequential growth across microchannel intersections creates structurally continuous grids and robust thermoelastic actuation (∼11% strain, > 50 cycles, maximum force density: 7.1 × 109 N m−3).
Sooyeon Ra, Sourabh R. Jagdale, Jin Hyeok Jang, Minwoo Jang, Kyoungtae Hwang, Taewoo Lee, Eun Hui Jeong, Soon Ho Yoon, Byung Joon Moon, Jangyup Son, Dong‐Su Lee, Sukang Bae, Jun Dong Park, Tae‐Wook Kim, Sangmin An, Sang Kyu Park   +15 more
wiley   +1 more source