Results 41 to 50 of about 1,502,237 (170)

Study on the Frost Resistance of Composite Limestone Powder Concrete against Coupling Effects of Sulfate Freeze–Thaw

open access: yesBuildings, 2023
Concrete in saline or coastal settings exposed to freezing temperatures is frequently affected by coupling actions of sulfate assault and freeze–thaw degradation, reducing the service life of concrete structures significantly.
Mingming Zhang   +5 more
doaj   +1 more source

Damage localization and rupture with gradient damage models

open access: yesFrattura ed Integrità Strutturale, 2011
We propose a method of construction of non homogeneous solutions to the problem of traction ofa bar made of an elastic-damaging material whose softening behavior is regularized by a gradient damage model.We show that, for sufficiently long bars, localization arises on sets whose length is proportional to the materialinternal length and with a profile ...
Pham, Kim, Marigo, Jean-Jacques
openaire   +7 more sources

Experimental Investigation of Compressive Concrete with Different Immersion Times and Its Stochastic Damage Model

open access: yesApplied Sciences
Continuous large amounts of precipitation can lead to a rapid increase in the water content of concrete in village building foundations, which can adversely affect the mechanical properties, such as the compressive strength of concrete.
Jing Wang, Zhi Shan, Jiawei Kang
doaj   +1 more source

Vibration Fatigue Damage Accumulation of Ti–6Al–4V under Constant and Sequenced Variable Loading Conditions

open access: yesMetals, 2018
This study aims to investigate the effect of loading factors on damage accumulation under variable amplitude vibration (VAV). Vibration fatigue experiments are conducted under both constant amplitude vibration (CAV) and VAV loading cases.
Jiewei Lin   +3 more
doaj   +1 more source

Hot Tensile Behavior of 05Cr17Ni4Cu4Nb Stainless Steel: Damage Model and Fracture Characteristics

open access: yesMetals
This study investigates the hot tensile behavior and fracture characteristics of 05Cr17Ni4Cu4Nb stainless steel through isothermal tensile tests conducted under various deformation parameters.
Jing Yuan   +3 more
doaj   +1 more source

USING GRAPHIC MODELING TO DETERMINE THE ANGLE BETWEEN THE ROLL AXES OFVEHICLES AT THE MOMENT OF COLLISION

open access: yesТеория и практика судебной экспертизы, 2015
An algorithm is proposed for determining the angle of relative position of vehicles at the moment of collision, using a graphic modeling method that involves building a damage model.
S. Zharkikh
doaj  

Improved Damage Model of RC Columns Accounting for the Influence of Variable Axial Load

open access: yesBuildings
The aim of this study is to address the limitations of fixed parameters and poor adaptability in traditional damage models for damage assessment of reinforced concrete (RC) columns under variable axial load.
Guangjun Sun, Zijian Chen, Bo Chen
doaj   +1 more source

FE Modeling of Circular, Elliptic, and Triangular Isolated Slabs With a Continuous Damage Model

open access: yesFrontiers in Built Environment, 2019
The non-linear behavior of reinforced concrete circular, elliptic, and triangular isolated slabs was studied using computational mechanics. Concrete was modeled with a damage model which includes softening, while the behavior of the reinforcing steel was
Gelacio Juárez-Luna   +1 more
doaj   +1 more source

Improving flood damage modelling

open access: yes, 2012
Scientific Technical Report; 12/13; ISSN 1610 ...
openaire   +3 more sources

Predicting the Width of Corrosion-Induced Cracks in Reinforced Concrete Using a Damage Model Based on Fracture Mechanics

open access: yesApplied Sciences, 2020
Using a finite-element scheme based on a damage model, a numerical system is developed to predict cracks in reinforced concrete beams due to corrosion expansion. The numerical results show that the width of such cracks is affected considerably by (i) the
Shinichiro Okazaki   +4 more
doaj   +1 more source

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