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Diagnostics of crack formation in castings using the logic of plausible reasoning
Mechanical properties Casting defects Cracks
2009/12/1
Purpose: Cold cracks are the defect often encountered in castings. Quick diagnosis of the cause of crack
formation enables preventing the formation of other cracks in the next casting process and ena...
An Interface Crack between a Graded Coating and a Homogeneous Substrate
FGMs Mixed-mode loading Singular integral equations Stress intensity factors
2009/10/12
The basic interface crack problem in a nonhomogeneous coating with continuously varying elastic properties bonded to a homogeneous semi-in nite medium is examined. The problem is encountered in studyi...
Fatigue Crack Growth Behaviour of 6013 Aluminium Alloy at Different Ageing Conditions in Two Orientations
Fatigue Crack growth rate Aluminium alloy Ageing AA6013
2009/10/9
The effect of different ageing treatments on the fatigue crack growth behaviour of AA6013 aluminium alloy was investigated. C(T) (Compact Tension) specimens prepared in L-T and T-L orientations were a...
Rare earth metals influence on mechanical properties and crack resistance of GP240GH and G17CrMo5-5 cast steels
Cast steel Modification REM Mechanical properties Fracture toughness
2011/4/1
This paper presents results of research on modification influence of REM on mechanical properties and crack resistance of GP240GH cast carbon steel and G17CrMo5-5 high-temperature cast steel. The test...
Application of digital radiography in evaluation of crack propagation rate in cast steel specimens
Non-destructive testing Ni-Cr cast steel Failure Cracks Thermal fatigue Microstructure
2011/4/1
A technology that utilizes penetrating X-rays is one of the oldest non-destructive testing methods. Digital radiography combines modern digital image processing algorithms with traditional X-ray testi...
Local approach contributions into the global view of the mechanical crack-tip environment formulation
Local approach Hydrogen Stainless steel
2010/2/10
Purpose: Physically based understanding, associate fracture processes to local origins. Even so, in elastic-plastic solids the continuum analysis is mainly engaged with the macroscopic scale. Beside g...
Crack arrest model for a piezoelectric strip subjected to Mode-I loadings
Smart materials Yield zone Crack opening displacement Crack growth rate
2010/2/22
Purpose: The present paper aims at proposing a crack arrest model for an infinitely long narrow, poled ceramic strip weakened by a finite hairline straight crack when the edges of the strip are subjec...
Crack growth resistance of Al2O3-ZrO2(nano) (12 mol% CeO2) ceramics
Ductility and crack resistance Fracture toughness R-curve Slow crack growth
2010/2/22
Purpose: Alumina-zirconia ceramics with nano 12 mol% CeO2 stabilized ZrO2 were presented as new ceramics with improvement fracture behavior: better crack growth resistance and limited susceptibility t...
Crack initiation and propagation in FeAl matrix
Crack resistance Fracture mechanic X-ray phase analysis Computational material science
2010/2/22
Purpose: of this paper is evaluation of macroscopic and microscopic residual stresses and their influence on nucleation and development of cracking in Fe-Al-C cast alloy.
Design/methodology/approach:...
Crack initiation in steel parts working in boilers and steam pipelines
Fatigue Residual life analysis Fracture mechanics Properties of materials and products
2010/2/22
Purpose: The purpose of this paper is to identify the influence of loading history and the processes of material degradation on the crack initiation and on durability under thermo-mechanical fatigue c...