Results 101 to 110 of about 2,621,120 (228)

Crash Behavior of DP800–DP1000 Advanced High‐Strength Steel’s Dissimilar Resistance Spot Welded Joints Under Quasi‐static and High Strain Rates

steel research international, EarlyView.
The high‐strain‐rate behavior of resistance spot‐welded DP800–DP1000 joints is investigated. Results show that microstructural gradients across BM–HAZ–FZ govern hardness, strain rate sensitivity, and failure modes. While strength increases with strain rate, energy absorption is controlled by ductility, with DP800–DP800 joints showing superior ...
Pankaj Shrivastava, Velaphi Msomi
wiley   +1 more source

Failure observation of the AZ31B magnesium alloy and the effect of lead addition content under ballistic impact

Advances in Mechanical Engineering, 2015
The association of the failure behavior of the AZ31B magnesium alloy with absorption energy under ballistic impact condition was investigated in this study, as well as the effect of varying percentages of added lead (Pb) content.
Mohamad Faizal Abdullah, Shahrum Abdullah, Mohd Zaidi Omar, Zainuddin Sajuri, Risby Mohd Sohaimi   +4 more
doaj   +1 more source

Effect of Different Surface Treatments on Resistance to Abrasive Wear of AISI 4140 Steel

steel research international, EarlyView.
This study investigates how different surface treatments affect resistance to abrasive wear of AISI 4140 Steel. The wear rate was significantly higher in samples subjected to conventional treatments than in samples coated using the HVOF process, demonstrating the superior efficiency of coatings applied by thermal spraying in mitigating abrasive wear ...
Everton Freitas de Oliveira, Tomasz Trzepieciński, Valmir Dias Luiz, Jorge Luis Coleti   +3 more
wiley   +1 more source

A Thoracic Mechanism of Mild Traumatic Brain Injury Due to Blast Pressure Waves [PDF]

, 2008
The mechanisms by which blast pressure waves cause mild to moderate traumatic brain injury (mTBI) are an open question. Possibilities include acceleration of the head, direct passage of the blast wave via the cranium, and propagation of the blast wave to
Michael Courtney, Amy Courtney
core  

Recent Advances in Oriented Hydrogels: From Fundamental Mechanisms to Future Challenges

SusMat, EarlyView.
Traditional hydrogels suffer from weak mechanical properties and limited functionality due to their random polymer networks. This review comprehensively summarizes the reinforcement mechanisms of oriented structure for hydrogels, the design/fabrication strategies, and the latest application progress of high‐strength oriented hydrogels.
Chang Xu, Xijing Zhuang
wiley   +1 more source

The Reflexive Turn in Systems Engineering: A Disciplinary Response to Complexity

Systems Engineering, EarlyView.
ABSTRACT The Future of Systems Engineering (FuSE) programme has called for the discipline to evolve as a transdiscipline capable of engaging complex eco‐socio‐technical challenges. Yet the pace of that evolution has been slower than the arguments for it would predict. This article examines why.
Raul Leal Ascencio
wiley   +1 more source

What Is the Return on Investment of Digital Engineering for Complex Systems Development Schedules? Findings From a Mixed‐Methods Case Study on the Post‐Production Design Change Processes of Navy Assets

Systems Engineering, EarlyView.
ABSTRACT Complex engineered systems routinely face schedule and cost overruns, along with poor post‐deployment performance. Both INCOSE and the U.S. Department of Defense (DoD) have championed Digital Engineering (DE) as a potential remedy, yet most of DE's purported benefits remain anecdotal, and its return on investment (ROI) remains poorly ...
Jannatul Shefa, Taylan G. Topcu
wiley   +1 more source

Dynamic mechanical response and failure behaviour of AlMgB14-based ceramic: experimental observation, constitutive modelling and ballistic performance evaluation

Journal of Materials Research and Technology
AlMgB14-based ceramics have emerged as promising materials for ballistic protection due to their ultra-hardness and low density. However, their dynamic mechanical behaviour and ballistic performance remain underexplored.
Yanyan Lu, Zheng Xu, Yushu Zhang, Tao Suo, Jingxian Zhang, Jianhong Hou, Wenzhi Wang   +6 more
doaj   +1 more source

Prognostic Value of Initial CT Imaging for Surgical Planning and Outcomes in Panfacial Fractures: A Systematic Review and Meta‐Analysis

World Journal of Otorhinolaryngology - Head and Neck Surgery, EarlyView.
ABSTRACT Objective To evaluate the reported prognostic value of initial computed tomography (CT) imaging for surgical planning and postoperative outcomes in panfacial fractures, and to determine whether CT‐derived variables have been consistently linked to clinically relevant outcomes.
Kambiz Ebrahimi, Sergey Y. Ivanov, Mekhaeel Shehata Fakhry Mekhaeel, Sameh Mohamed Ahmed Eissa Salem, Sergey Sergeevich Ivanov, Andrey Vitalevitch Protasov, Tahoura Talebidelooei, Saleh Dadmehr, Elena V. Kaverina   +8 more
wiley   +1 more source

Determination of the one‐electron reduced Wigner function for a molecular crystal

Acta Crystallographica Section A, EarlyView.
The first reconstruction of an experimental one‐particle reduced Wigner function for electrons in molecular crystals is reported. It relies on an ensemble N‐representable model jointly refined from the X‐ray diffraction and Compton scattering data.The Wigner function provides a complete phase‐space representation of a quantum state.
Sizhuo Yu, Jean-Michel Gillet
wiley   +1 more source