Results 61 to 70 of about 1,090,135 (294)

Modeling Dislocation Cutting of γ′ Precipitates in Ni‐Base Superalloys: Linking Atomistic and Dislocation Dynamics Simulations

Advanced Engineering Materials, EarlyView.
Dislocation cutting of γ′ precipitates in Ni‐based superalloys is investigated by linking atomistic simulations with discrete dislocation dynamics. The critical cutting stress is shown to be governed by the antiphase boundary energy, while line tension effects promote edge‐preferred cutting.
Frédéric Houllé, Siwen Gao, Marc Fivel, Anxin Ma, Daria Smirnova, Sriram Anand, Arun Prakash, Julien Guénolé, Alexander Hartmaier, Erik Bitzek   +9 more
wiley   +1 more source

Shear Strengthening and Rehabilitation of Normal Reinforced Concrete Beams: A Review

Emerging Technologies and Engineering Journal
The structural integrity of reinforced concrete (RC) structures diminishes over time due to ageing, unexpected loads such as earthquakes, and corrosion-induced deterioration, necessitating rehabilitation or replacement.
Wrya Abdullah, Arjun Basnet
doaj   +1 more source

Experimental assessment and retrofit of full-scale models of existing RC frames [PDF]

, 2002
PSD tests on two full-scale models of existing non-seismic resisting RC frame structures are described. The testing program covered several aspects, namely assessment of seismic performance of existing frames without and with infill panels ...
Varum, H., Molina, J., Pinto, A. V.
core  

Advanced Electron Microscopy and Microcomputed Tomography Analysis of Single‐Crystal Ni‐Base Superalloys After Short‐Term Multiaxial Creep

Advanced Engineering Materials, EarlyView.
This work studies the anisotropic behavior of circular notched tensile specimens of Ni‐base superalloy single crystals during high‐temperature tensile creep along [001], [110], and [111]. Correlative scale‐bridging imaging of specimens reveals early rupture along [110] because 1) plastic deformation proceeds faster at notch center; 2) more (brittle ...
Leonardo Agudo Jácome, Lijie Cao, Christoph Somsen, Johannes Boes, René Hesse, Werner Theisen, Gunther Eggeler   +6 more
wiley   +1 more source

Influence of Scan Strategies in Electron Beam Powder Bed Fusion on Solidification, Microstructure, and High‐Temperature Compressive Properties of γ′‐Strengthened Inconel 738LC

Advanced Engineering Materials, EarlyView.
Experiments and thermophysical simulations were conducted to investigate the electron beam powder bed fusion electron beam (PBF‐EB/M) process for the γ′‐strengthened nickel‐based superalloy Inconel 738LC. The results demonstrate the impact of process‐induced microstructural variations on high‐temperature mechanical behavior, providing a basis for ...
Jan Niklas Petenati, Karthik Kumar Banku, Prasanth Bondi, Ivan Zhirnov, Yangyiwei Yang, Gordon Schmidt, Jürgen Christen, Georg Hasemann, Manja Krüger, Bai‐Xiang Xu, Bilal Gökce, Silja‐Katharina Rittinghaus   +11 more
wiley   +1 more source

Review on NSM-CFRP Method for Enhancing Shear Capacity in Reinforced Concrete Deep Beams [PDF]

E3S Web of Conferences
The demand for improved strengthening techniques for current concrete structures is on the rise. Many structures that will still be in use two decades from now have already been constructed.
Faney J., Hema Priya M.
doaj   +1 more source

Shear strengthening of masonry panels with GFRP: preliminary experimental results [PDF]

, 2000
This paper describes an experimental investigation of masonry strengthened withGFRP. Square masonry walls of clay or concrete bricks were built, and strengthenedusing sheet GFRP (applied by the wet lay-up method).
Bonfiglioli, Barbara, Stratford, Tim; id_orcid, Manfroni, Odine, Pascale, Giovanni   +3 more
core  

External and Internal Cracking Caused by Heat Treatment in Laser Powder Bed Fusion‐Fabricated Inconel 738LC Components

Advanced Engineering Materials, EarlyView.
Manufacturing problems such as heat treatment‐induced cracking hinder the widespread application of the laser powder bed fusion (LPBF) process to superalloys. In this study, cracks in the LPBF components of Inconel 738LC superalloy are characterized after heat treatment at various temperature ranges, revealing two distinct cracking behaviors.
Kosuke Kuwabara, Masahiro Kusano, Ayako Ikeda, Toshio Osada, Makoto Watanabe   +4 more
wiley   +1 more source

An alternative design of steel-concrete-steel sandwich beam

, 2010
A steel-concrete-steel sandwich beam represents a special form of sandwich structure. Originated in civil/structural engineering applications, it is now being developed for shipbuilding/offshore applications.
Leekitwattana, M., Shenoi, R.A., Boyd, S.W.   +2 more
core   +1 more source

Experimental Investigations of RC Deep Beams Strengthened in Shear using NSM CFRP System [PDF]

Journal of Structural and Construction Engineering, 2018
This paper presents the test results of an experimental study that investigates the behavior of RC deep beams strengthened in shear with externally bonded (EB) and near surface mounted (NSM) techniques using CFRP strip.
Habib Akbarzadeh Bengar, Mohsen Ahmadnezhad, Mehdi Noroozi   +2 more
doaj   +1 more source