Results 21 to 30 of about 230 (178)

Protective Behaviors of Bio-Inspired Honeycomb Column Thin-Walled Structure against RC Slab under Impact Loading

Biomimetics, 2023
In order to protect the reinforced concrete (RC) slab structure from damage under some accidental conditions, such as impacting and explosion, we used bio-inspired honeycomb column thin-walled structure (BHTS) to serve as a buffer interlayer for the ...
Shijie Wang, Hongxiang Xia
doaj   +1 more source

Study on dynamic response characteristics of jointed coal mass under impact load

Meikuang Anquan
Based on the similarity theorem, the material ratio of similar coal body is determined, and the single-layer thin-plate coal body is prepared by pouring.
Jianfeng LIU
doaj   +1 more source

Simulation and Experimental Study of Strain Distribution in Composite Materials Considering Impact Velocity and Impact Location

Aerospace
Fiber-reinforced composite panels have become the primary load-bearing structures in aircraft due to their exceptional stiffness, specific strength, and mechanical properties.
Aibing Qian, Hao Dong, Kang Cao, Yongjie Zhang   +3 more
doaj   +1 more source

Prediction of Impact Response for Reinforced Concrete Beams by Numerical Simulation Method [PDF]

Journal of Rehabilitation in Civil Engineering
Brittle characteristics, low tensile strength, and rapid crack propagation upon exposure to impact loads are some of the issues associated with concrete.
Ahmad Rahmati Alaei, Seyed Mohammad Hossein Khatami   +1 more
doaj   +1 more source

Impact Resistance Test and Numerical Simulation Study of Scrap Steel Fiber Rubber Concrete

Buildings
The scrap steel fibers (SSF) produced by mechanical processing are processed and added to rubber concrete (RC) to make scrap steel fiber rubber concrete (SSFRC), so as to enhance the strength of the rubber concrete.
Mingshuai Li, Yongtao Gao, Chengzhao Wang, Youzhi Li, Tao Fan   +4 more
doaj   +1 more source

Prediction Model of Drilling Performance for Percussive Rock Drilling Tool

Advances in Civil Engineering, 2020
This study suggests a method for quantitatively estimating the drilling performance of the down-the-hole (DTH) hammer during percussive drilling of rock surfaces. A pneumatic dynamic model of the DTH hammer was developed that considers the mass flow rate
Dae-Ji Kim, Jaewon Kim, Booyeong Lee, Min-Seok Shin, Joo-Young Oh, Jung-Woo Cho, Changheon Song   +6 more
doaj   +1 more source

Analysis on intrusion characteristic of soft rock under impact load

Meikuang Anquan, 2022
Impact rock breaking technology is widely used in hard rock drilling due to its high drilling efficiency, but the intrusion and crushing characteristics of soft rock under impact load are not clear.
王四一
doaj   +1 more source

The Influence of Field‐Assisted Sintering Technology (FAST) Temperature and Cooling Rate on the Microstructural Evolution in Gamma‐Titanium Aluminide Alloy GE4822

Advanced Engineering Materials, EarlyView.
Controlling the Field Assisted Sintering Technology (FAST) parameters, dwell temperature and cooling rate, significantly influences the microstructural evolution in titanium aluminide GE4822. Significant γ‐lamellar colonies develop only upon cooling through the α‐transus.
Jack Krohn, James Pepper, Martin Jackson
wiley   +1 more source

Evaluation of measurement uncertainty of drop hammer impact test for composite materials

Journal of Physics: Conference Series
Abstract Future aircraft structures are usually dominated by composites, and one of the key defects and forms of damage to composite structures is the impact damage caused by low-energy (especially low-speed) foreign matter. This kind of low-energy impact test is usually completed by the drop hammer testing machine, so accurately ...
Li Lei, Zhang Yao
openaire   +1 more source

Engineering Concentration‐Dependent Intravitreal Mobility via Cyclic Arginine‐Enriched Nanocarrier Surface Modification: In Vivo Proof‐of‐Concept in a Porcine Large Animal Model

Advanced Healthcare Materials, EarlyView.
In this study, Hammer et al. highlight cyclic‐arginine surface engineering as a highly biocompatible, controllable, and concentration‐dependent regulator of intravitreal nanoparticle mobility in vivo in a translational large animal model. The cyclic arginine surface‐modification supports the development of next‐generation biomaterials for long‐acting ...
Maximilian Hammer, Bryan Calder Ackermann, Anna Stoß, Niklas Junker, Ludwig Geisweid, Sabrina Wohlfart, Jonathan Herth, Simon William Pohl, Manuel Ben Böhmann, André Schulz, Victor Aristide Augustin, Gerd Uwe Auffarth, Philipp Uhl   +12 more
wiley   +1 more source