Results 1 to 10 of about 2,705 (164)

Effect of reinforcement type and viscoelasticity on static crack growth, fatigue, and creep resistance in acrylonitrile butadiene rubber (NBR) elastomers [PDF]

open access: yesScientific Reports
Various mechanisms contribute to the failure of engineering rubber products, including static crack growth, dynamic crack growth (fatigue), thermal accumulation, and creep failure.
Sahar Tavosi   +3 more
doaj   +2 more sources

Study on creep damage and crack growth for TC11 under complex stress loading

open access: yesXibei Gongye Daxue Xuebao, 2021
In order to investigate the creep damage and creep crack growth of TC11, we established the finite element model based on ductility exhaustion constitutive model.

doaj   +1 more source

Determination of creep crack growth kinetics of ABS via the C* approach at different temperatures

open access: yesResults in Engineering, 2023
Crack initiation and propagation under creep is one of the main failure modes of service equipment made of plastic. This paper explores the feasibility of using the creep C* integral approach to deduce creep crack growth data obtained for a polymeric ...
J. Wainstein   +3 more
doaj   +1 more source

The effect of creep damage formulation on crack tip fields, creep stress intensity factor and crack growth assessments [PDF]

open access: yesFracture and Structural Integrity, 2017
Fields of stress, strain rate and process zone of a mode I creep crack growth are analyzed by employing damage evolution equations. Damage models for fracture of process zone represented by stress based formulation.
V. Shlyannikov, A. Tumanov
doaj   +2 more sources

Predictive modelling of creep crack initiation and growth using Extended Finite Element Method (XFEM)

open access: yesFracture and Structural Integrity, 2022
In this study, a numerical strategy for predictive modelling of creep in tension tests for the rectangular plate with a single crack and CT-specimen based on the extended finite element method (XFEM) will be described in detail. A model of creep fracture
Meor Iqram Meor Ahmad   +3 more
doaj   +1 more source

Unified transient creep constitutive model based on the crack evolution of micritic bioclastic limestone.

open access: yesPLoS ONE, 2022
The surrounding rock at the exit of the No. 1 drainage tunnel of the Artashi Water Conservancy Project is micritic bioclastic limestone with 55% bioclastic material. This rock underwent unpredictable large and time-dependent deformation during excavation.
Zuguo Mo   +7 more
doaj   +1 more source

Crack growth rate prediction based on damage accumulation functions for creep-fatigue interaction

open access: yesFracture and Structural Integrity, 2020
The present study is concerned with formulation of a model for the creep–fatigue crack growth rate prediction on the base of fracture damage zone concepts. It is supposed that crack growth rate can be determined by integration of damage accumulation rate
Andrey Tumanov   +2 more
doaj   +3 more sources

High temperature initiation and propagation of cracks in 12%Cr-steel turbine disks [PDF]

open access: yesFracture and Structural Integrity, 2013
This work aims to study the crack propagation in 12%Cr steel for turbine disks. Creep Crack Growth (CCG) tests on CT specimens have been performed to define the proper fracture mechanics which describes the initiation of the crack propagation and the ...
S. Foletti   +4 more
doaj   +3 more sources

A Creep Constitutive Model, Based on Deformation Mechanisms and Its Application to Creep Crack Growth

open access: yesMetals, 2022
In this paper, a constitutive model, based on the creep deformation mechanism in P91 steel, under a wide range of stress levels, was established and embedded into finite element software.
Jingwei Zhang   +4 more
doaj   +1 more source

Crack Growth Behaviour of P92 Steel Under Creep-fatigue Interaction Conditions

open access: yesCailiao gongcheng, 2017
Creep-fatigue interaction tests of P92 steel at 630℃ under stress-controlled were carried out, and the crack propagation behaviour of P92 steel was studied.
JING Hong-yang   +3 more
doaj   +1 more source

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