Results 91 to 100 of about 14,489,574 (279)

Height Effect on Response Modification Factor of Open Chevron Eccentrically Braced Frames [PDF]

Iranica Journal of Energy and Environment, 2012
The necessity of making buildings taller and height of new buildings is now one of the major problems in building design and codes of interest is located.
Gholamreza Abdollahzadeh, Amirhosein Maleki Kambakhsh   +1 more
doaj  

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

Advanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han, Julian M. Rosalie, Jan Radners, Mauro Madia, Philipp von Hartrott, Birgit Skrotzki   +5 more
wiley   +1 more source

On the performance of circular concrete-filled high strength steel columns under axial loading

Alexandria Engineering Journal, 2012
This work presents a numerical study to investigate the performance of circular high-strength steel tubes filled with concrete (CFT) under monotonic axial loading.
Mohamed Mahmoud El-Heweity
doaj   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Probabilistic models for curvature ductility and moment redistribution of RC beams

, 2015
It is generally accepted that, in the interest of safety, it is essential to provide a minimum level of flexural ductility, which will allow energy dissipation and moment redistribution as required.
Hassan Baji (9778682), HR Ronagh (9863387)   +1 more
core   +2 more sources

Evaluating the Behaviour Factor of Medium Ductile SMRF Structures

Periodica Polytechnica Civil Engineering, 2017
In seismic codes, the capacity of structures is calculated using capacity design procedure based on the concept of base shear. The critical parameter in this procedure is the behaviour factor (q-factor), which allows designing the structures at the ultimate limit state accounting for their ductility and reserve strength.
Yahmi, Djamal, Branci, Taïeb, Bouchaïr, Abdelhamid, Fournely, Eric   +3 more
openaire   +2 more sources

Creep Properties and Deformation Mechanism of Additively Manufactured NiAl‐CrMo Composites

Advanced Engineering Materials, EarlyView.
Additively manufactured NiAl‐CrMo composites contain numerous interfaces and cell boundaries that control their creep response. At 700°C under high applied stress, creep is dominated by dislocation‐controlled power‐law mechanisms. At 800°C–900°C and lower stresses, creep is primarily diffusion‐controlled along cell boundaries.
Jan Vollhüter, Andreas Bezold, Johan Westraadt, Katharina Fiegl, Subham Chattoraj, Benjamin Wahlmann, Carolin Körner, Michael Mills, Mathias Göken, Steffen Neumeier   +9 more
wiley   +1 more source

The design of local ductility for reinforced concrete elements by Eurocode 8: Confinement effectiveness factor [PDF]

Građevinski Materijali i Konstrukcije, 2019
This paper is focused on the effects of confinement of the reinforcement reinforced concrete sections, i.e. in the way that the transverse reinforcement affects the improvement of the characteristics of both the material and the affected zone of the ...
Vulinović Miloš, Milićević Ivan, Ignjatović Ivan   +2 more
doaj  

Required Local Ductility for RC Frame Systems in Seismic Regions [PDF]

E3S Web of Conferences
According to Eurocode 8, reinforced concrete structures in seismically active areas should be designed to have adequate energy dissipation capacity and ductile behaviour.
Korentz Jacek
doaj   +1 more source

Enhanced Strength and Corrosion Resistance of Ti‐13Nb‐12Ta‐10Zr‐4Sn Alloy by Aging Treatment

Advanced Engineering Materials, EarlyView.
This work systematically investigates the effect of aging treatment on mechanical properties and corrosion behavior of vacuum arc‐melted Ti‐13Nb‐12Ta‐10Zr‐4Sn alloy. Owing to the increased α″ martensite, strength and corrosion resistance were significantly enhanced by aging treatment.
Yuhua Li, Rong Zhao, Qian Zhang, Haojie Wang, Yujing Liu, Lai‐Chang Zhang   +5 more
wiley   +1 more source