Results 81 to 90 of about 12,560 (233)

Thermal-structural design study of an airframe-integrated Scramjet [PDF]

open access: yes
Design concepts are developed and evaluated for a cooled structures assembly for the Scramjet engine, for engine subsystems mass, volume, and operating requirements, and for the aircraft/engine interface.
Katinsky, E. A.   +3 more
core   +4 more sources

Analysis, Behavior, Strengthening and repairing of Reinforced Concrete Corbels: Comprehensive Review

open access: yesJournal of Materials and Engineering Structures, 2023
In this review, an extensive survey on the theoretical models and approaches that were proposed in literature to study the behavior of RC corbels has been presented.
Qasim Muhammed SHAKIR
doaj  

Shear capacity of reinforced concrete beams using neural network [PDF]

open access: yes, 2007
NoOptimum multi-layered feed-forward neural network (NN) models using a resilient back-propagation algorithm and early stopping technique are built to predict the shear capacity of reinforced concrete deep and slender beams.
Ashour, Ashraf F.   +2 more
core  

Strut elaboration in strut-and-tie model

open access: yesConstructii: Journal of Civil Engineering Research, 2012
The Strut-and-Tie Model (STM) has been incorporated into the codes and standards because of its consistency and rationality since last decade. However, it has encountered few challenges whilst its implementation. The effective compressive strength of strut has been a complex issue among researchers since emergence of STM.
Mohammad PANJEHPOUR   +3 more
openaire   +1 more source

Experimental evaluation of optimized strut‐and‐tie models for a dapped beam

open access: yesStructural Concrete, 2016
AbstractStrut‐and‐tie modelling constitutes a powerful tool for the design of complex structural reinforced concrete elements. It has been proved numerically that strut‐and‐tie (ST) models obtained using structural optimization methods produce designs that are more efficient.
Oviedo, R.   +2 more
openaire   +4 more sources

Competitive diplomacy in bargaining and war

open access: yesAmerican Journal of Political Science, EarlyView.
Abstract War is often viewed as a bargaining problem. However, prior to bargaining, countries can vie for leverage by expending effort on diplomacy. This article presents a dynamic model of conflict where agenda‐setting power is endogenous to pre‐bargaining diplomatic competition.
Joseph J. Ruggiero
wiley   +1 more source

Structural Performance of RC Beams containing Tension-Only Nodes

open access: yesInternational Journal of Concrete Structures and Materials, 2018
Strut and Tie (S&T) models are used for the design of what are known as “discontinuity regions” in reinforced concrete (RC) structures. Building codes such as ACI-318 and Eurocode 2 do not give information on the nodes that only connect ties in S&T ...
Manuel Alejandro Fernández-Ruiz   +2 more
doaj   +1 more source

Variation in trabecular bone microarchitecture across rhesus macaque (Macaca mulatta) load‐bearing joints

open access: yesJournal of Anatomy, EarlyView.
Aging of bone density (BV/TV) is regional: Forelimb [left] elements gain bone sporadically (orange) but hind limb elements [right] lose bone globally (blue). Abstract Globally, human population structure is quickly trending older, increasing the prevalence and systemic burden of age‐related skeletal disorders such as osteoporosis.
Cassandra M. Turcotte   +16 more
wiley   +1 more source

Comparative assessment of strut models for the modelling of in-plane seismic response of infill walls [PDF]

open access: yes, 2017
The influence of infills on the seismic response of frame structures has long been recognised. Typically, stiffness and strength of the infill and connections between infill and frame are such that the infill affects the global seismic behaviour of the
Franchin, Paolo   +3 more
core   +2 more sources

Refinement of Strut-and-Tie Model for Reinforced Concrete Deep Beams

open access: yesPLOS ONE, 2015
تُستخدم العوارض العميقة بشكل شائع في المباني الشاهقة والهياكل البحرية والأساسات. وفقًا للعديد من الرموز والمعايير، يوصى باستخدام نموذج الدعامة والربط (STM) كنهج عقلاني لتحليلات العارضة العميقة. يركز هذا البحث على STM الموصى به من قبل ACI 318-11 و AASHTO LRFD ويستخدم النتائج التجريبية لتعديل عامل فعالية الدعامة في STM للعوارض العميقة للخرسانة المسلحة ...
Mohammad Panjehpour   +2 more
openaire   +5 more sources

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