Results 101 to 110 of about 16,681 (248)

Single particle calculations for a Woods-Saxon potential with triaxial deformations, and large Cartesian oscillator basis

open access: yes, 2005
We present a computer program which solves the Schrodinger equation of the stationary states for an average nuclear potential of Woods-Saxon type. In this work, we take specifically into account triaxial (i.e. ellipsoidal) nuclear surfaces.
B. Mohammed-Azizi   +11 more
core   +1 more source

Flexural performance of concrete‐filled steel tubular beams with wood chip aggregate

open access: yesStructural Concrete, EarlyView.
Abstract This study investigates the flexural performance of concrete‐filled steel tubular (CFST) beams with partial replacement of aggregates by wood chips (0%–25%) through experimental and numerical analysis. This study is novel in that it experimentally and numerically investigates the flexural behavior of CFST beams with partial replacement of ...
Mizan Ahmed   +6 more
wiley   +1 more source

Experimental and design‐oriented research on fiber reinforced concrete segmental tunnel linings: A systematic review

open access: yesStructural Concrete, EarlyView.
Abstract The use of fiber reinforced concrete (FRC) in precast tunnel segments is among the most established and representative applications of this material. Over the past two decades, numerous tunnel linings were constructed with partial or total substitution of conventional steel reinforcement by fibers, this yielding to quantifiable benefits in ...
Vladimir Rusanov   +4 more
wiley   +1 more source

Behavior of manufactured sand and recycled coarse aggregate concrete‐filled steel tubular stub columns with circular section

open access: yesStructural Concrete, EarlyView.
Abstract Accelerated urbanization has intensified environmental concerns due to excessive natural resource consumption and construction waste generation. Circular concrete‐filled steel tube (CFST) columns incorporating manufactured sand recycled coarse aggregate (MS‐RCA) concrete have emerged as an innovative composite element offering notable ...
Minsheng Guan   +7 more
wiley   +1 more source

Anisotropy and cyclic loading characteristics of a stiff Bolders Bank glacial till at Cowden [PDF]

open access: yesE3S Web of Conferences
Glacial tills are widespread across the world, common in northern Europe and found under the North and Baltic Seas. Their geological and geotechnical characterisation is important to the geotechnical design of a wide range of onshore and offshore ...
Liu Tingfa   +2 more
doaj   +1 more source

CYCLIC STRENGTHS OF CLAY AND SAND BY STRAIN RATE CONTROLLED CYCLIC TRIAXIAL TEST

open access: yesDoboku Gakkai Ronbunshu, 1995
本研究は, 土の載荷速度依存性に着目して, 飽和粘土を主対象に定ひずみ速度繰返し三軸圧縮試験を行い, 従来の応力制御式による繰返し三軸試験結果と比較検討を行ったものである. また, ゆるい飽和砂とまさ土についても同様の検討を行った. その結果, 定ひずみ速度繰返し三軸試験による実験結果は, 特に粘土やひずみ軟化挙動を起こすような緩い砂, あるいは破砕性土であるまさ土などにおいて応力制御試験によるよりも安定した挙動となることが明らかとなった. さらに, 定ひずみ速度繰返し試験により, 粘土の繰返し強度特性におよぼすひずみ速度の影響について調べた.
Masayuki Hyodo   +3 more
openaire   +2 more sources

On a damage-plasticity approach to model concrete failure

open access: yes, 2009
A damage-plasticity constitutive model for the description of fracture in plain concrete is presented. Two approaches, the local model comprising the adjustment of the softening modulus and the nonlocal model based on spatial averaging of history ...
Grassl, Peter
core   +1 more source

Using programmable infusion pump in avian species – a validation methodology in geese

open access: yesWildlife Biology, EarlyView.
Wildlife face anthropogenic and natural stressors that affect their physiology and behaviour. The activity of the hypothalamic–pituitary–adrenal axis and glucocorticoid (GC) production is intrinsically linked with energy regulation and environmental stressors.
Myriam Trottier‐Paquet   +5 more
wiley   +1 more source

Theoretical studies on the mechanical behavior of granular materials under very low intergranular stresses [PDF]

open access: yes
The salient aspects of the theoretical modeling of a conventional triaxial test (CTC) of a cohesionless granular medium with stress and strain rate loading are described.
French, Kenneth W., Jr.
core   +1 more source

Performance of the Direct Current Electric Potential Difference (DCEPD) Method for Crack Extension Measurement in Fracture Mechanics Specimens Exhibiting Split Delaminations

open access: yesFatigue &Fracture of Engineering Materials &Structures, EarlyView.
ABSTRACT This work investigates the performance of the direct current electric potential difference (DCEPD) method for measuring crack extension (∆a$$ \Delta a $$) during fracture toughness tests of ductile steels exhibiting delaminations perpendicular to the main crack plane, known as splits.
Sergio Luis Gonzalez Assias   +2 more
wiley   +1 more source

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