Results 61 to 70 of about 126,673 (308)

Normalised rotation capacity for deformability evaluation of high-performance concrete beams [PDF]

, 2010
High-strength concrete (HSC) is becoming more popular in the construction of beams and columns of tall buildings because of its higher stiffness and strength-to-weight ratio.
Ho, JCM, Su, RKL, Zhou, KJH
core  

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Experimental and Numerical Investigation of Concrete-Filled Tube Beams: A Review Paper

Journal of Engineering
Concrete-filled steel tubes (CFST) are structural members consisting of hollow steel tubes filled with concrete. Both steel and concrete work together to provide several advantages.
Ali M. Abdulridha, Salah R. Al Zaidee
doaj   +1 more source

On the Influence of Antioxidants and Recycled MgO–C Source Material on the Mechanical Properties of Carbon‐Bonded Magnesia Refractories

Advanced Engineering Materials, EarlyView.
The presented study focuses on the fracture behaviour of carbon‐bonded magnesia MgO–C refractories, where environmentally friendly fructose, collagen and lignin serve as temporary binding agents. The partial substitution of the source material with recycled MgO–C reduces the fracture resistance, which can be counteracted by the additional introduction ...
Marc Neumann, Tom Weber, Jana Hubálková, Florian Kerber, Dinesh Kumar Gunasekar, Hans Jelitto, Christos G. Aneziris   +6 more
wiley   +1 more source

Theoretical study on effect of confinement on flexural ductility of normal and high-strength concrete beams [PDF]

, 2004
Compared with normal concrete, high-strength concrete has higher strength but is generally more brittle. Its use in a reinforced concrete structure, if not properly controlled, could lead to an unsustainable reduction in ductility.
Essand, Magnus, Hillerdal, Victoria, Leja, Justyna, Ramachandran, Mohanraj   +3 more
core   +1 more source

Al–Cu Composite Casting of Laser‐Deoxidized Copper: Bonding, Interfacial Chemistry, and Thermal Conductivity

Advanced Engineering Materials, EarlyView.
This study investigates laser‐based oxide removal of Cu inserts in oxygen‐free conditions and examines long‐term oxidation kinetics and surface chemistry under different atmospheres via X‐ray photoelectron spectroscopy. Al–Cu compound casting with differently oxidized surfaces is performed, and intermetallic phase formation, morphology, and thermal ...
Timon Steinhoff, Finn‐Lennard Janthur, Sascha Zimmermann, Sarah Seffer, Jörg Hermsdorf, René Gustus, Ludger Overmeyer, Wolfgang Maus‐Friedrichs, Hans Jürgen Maier, Christian Klose   +9 more
wiley   +1 more source

Effect of steel fiber content on fatigue performance of high-strength concrete beams

Scientific Reports
This study focuses on the fatigue performance of steel fiber reinforced high-strength concrete structures. The effect of steel fiber volume fraction (0%, 0.5%, 1.0%, 1.5%) on the cracking resistance, deformation characteristics and fatigue life of high ...
Ming Zhang, Jiahua Jing, Shike Zhang
doaj   +1 more source

Strain-hardening effect on the flexural behavior of ultra-high-performance fiber-reinforced concrete beams with steel rebars

Developments in the Built Environment
This study evaluated the effects of volume fraction, aspect ratio, and shape of steel fibers on the mechanical properties of ultra-high-performance fiber-reinforced concrete (UHPFRC) and the structural behavior of reinforced (R-) UHPFRC beams.
Doo-Yeol Yoo, Salman Soleimani-Dashtaki, Taekgeun Oh, Booki Chun, Nemkumar Banthia, Seung-Jung Lee, Young-Soo Yoon   +6 more
doaj   +1 more source

Concrete beams with externally bonded flexural FRP-reinforcement: analytical investigation of debonding failure [PDF]

, 2003
This paper studies the problem of early concrete cover delamination and plate-end failure of reinforced concrete beams strengthened with externally bonded FRP-reinforcement. The accuracy of analytical models and finite element (FE) methods for predicting
Adams, Arduini, Fanning, Garden, Goland, Kwak, Kypros Pilakoutas, Lau, Malek, Meier, Nguyen, Ninoslav Pešić, Quantrill, Rahimi, Ramana, Ritchie, Robert, Roberts, Roberts, Ross, Saadatmanesh, Saadatmanesh, Sharif, Smith, Spadea, Taljsten, Teng, Triantafillou, Volkersen   +28 more
core   +1 more source

Evaluating Energy Absorption Performance of Filled Lattice Structures

Advanced Engineering Materials, EarlyView.
Maximum stress must be considered to robustly evaluate energy absorber designs. This approach was applied to compare all types of absorbers in a single Ashby diagram and determine the utility of filling lattice voids with a second material. High‐performance fillers can improve the performance of lattices that are limited by buckling or catastrophic ...
Christian Bonney, William P. King, Iwona Jasiuk   +2 more
wiley   +1 more source