Blar i Fakultet for ingeniørvitenskap (IV) på tidsskrift "Frattura ed Integrità Strutturale"
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Fatigue assessment of steel rollers by means of the local energy
(Journal article; Peer reviewed, 2017)This paper aims to analyses the fatigue behavior of steel rollers using the average strain energy density (SED) criterion. Considering the variability of the V-notch opening angle, a simple scalar quantity, i.e. the value ... -
Fatigue assessment of welded joints by means of the strain energy density method: Numerical predictions and comparison with eurocode 3
(Journal article; Peer reviewed, 2019)The main aim of the present work is to investigate the effects of different parameters on the fatigue strength of four different welded details through an energetic approach based on the Strain Energy Density failure ... -
Fatigue Behavior of Metallic Components Obtained by Topology Optimization for Additive Manufacturing
(Peer reviewed; Journal article, 2021)The main goal of the present research is to propose an integrated methodology to address the fatigue performance of topology optimized components, produced by additive manufacturing. The main steps of the component design ... -
Fatigue crack propagation prediction of a pressure vessel mild steel based on a strain energy density model
(Journal article; Peer reviewed, 2017)Fatigue crack growth (FCG) rates have traditionally been formulated from fracture mechanics, whereas fatigue crack initiation has been empirically described using stress-life or strain-life methods. More recently, there ... -
Fatigue life assessment for a welded detail: advantages of a local energetic approach and experimental validation
(Journal article; Peer reviewed, 2018)In modern civil buildings, as well as in mechanical and naval constructions, welding is a widely diffused technological process. The fatigue assessment, as design or verification procedure, of a welded joint to evaluate ... -
Fracture assessment of magnetostrictive materials
(Journal article; Peer reviewed, 2017)Giant magnetostrictive materials are gaining interest in the field of smart material, especially the commercially known Terfenol-D, that is an alloy made out of iron, terbium and dysprosium (Tb0.3Dy0.7Fe1.9). Since these ... -
Frontiers of fracture and fatigue: Some recent applications of the local strain energy density
(Journal article; Peer reviewed, 2018)The phenomenon of brittle fracture occurs too often in various branches of engineering being the reason of unexpected termination of anticipated service lives of an engineering objects. This leads to unfortunate catastrophic ... -
Influence of Notch Sensitivity and Crack Initiation Site on Low Cycle Fatigue Life of Notched Components under Multiaxial Non-proportional Loading
(Journal article; Peer reviewed, 2019)A series of strain-controlled multiaxial low cycle fatigue (LCF) tests under proportional and non-proportional loading conditions have been conducted on notched specimens. Cylindrical bars of Al 6061 aluminum alloy and ... -
Investigation fatigue crack initiation and propagation cruciform welded joints by extended finite element method (XFEM) and implementation SED approach
(Peer reviewed; Journal article, 2022)This study has used the strain energy density (SED) approach to evaluate the stress intensity factor (SIF) of cracked cruciform welded joints in Hardox 450 steel. A microstructural analysis was made of Hardox 450 steel ... -
Joined application of a multiaxial critical plane criterion and a strain energy density criterion in low-cycle fatigue
(Journal article; Peer reviewed, 2017)In the present paper, the multiaxial fatigue life assessment of notched structural components is performed by employing a strain-based multiaxial fatigue criterion. Such a criterion, depending on the critical plane concept, ... -
Local strain energy density for the fatigue assessment of hot dip galvanized welded joints: Some recent outcomes
(Journal article; Peer reviewed, 2017)Since in literature only data about the effect of the hot-dip galvanizing coating on fatigue behavior of unnotched specimens are available, whereas very few for notched components and none for welded joints, the aim of ... -
Local strain energy density for the fracture assessment of polyurethane specimens weakened by notches of different shape
(Journal article; Peer reviewed, 2017)Recent studies on local stress fields in proximity of crack and notch tips have shown that Strain Energy Density (SED), averaged in a circular control volume surrounding the point of stress singularities, represents a ... -
Local strain energy density to assess the multiaxial fatigue strength of titanium alloys
(Peer reviewed; Journal article, 2016)The present paper investigates the multiaxial fatigue strength of sharp V-notched components made of titanium grade 5 alloy (Ti-6Al-4V). Axisymmetric notched specimens have been tested under combined tension and torsion ... -
Localized wrinkling of metal films on elastic and liquid substrates
(Peer reviewed; Journal article, 2019)Global and localized wrinkling phenomena in films/substrates have been widely studied by means of experiment and theoretical analyses in the past two decades. They have shown broad application prospect in microstructure ... -
Low cycle fatigue behavior of additively manufactured Ti-6Al-4V under non-proportional and proportional loading
(Journal article; Peer reviewed, 2019)Experimental tests were conducted on additive manufactured Ti-6Al-4V titanium alloy to investigate the mechanical and crack properties under multiaxial cyclic loading. Selective Laser Sintering technique (SLS) was employed ... -
Mechanical properties of the most common European woods: a literature review.
(Peer reviewed; Journal article, 2020)Wood is an orthotropic material used since ancient time. A literature research about the mechanical properties of density, fracture toughness, modulus of elasticity, and Poisson’s ratio has been done to have a broader view ... -
Microstructural and mechanical characterization of a stainless-steel wire mesh–reinforced Al-matrix composite
(Peer reviewed; Journal article, 2021)The microstructure and mechanical properties of stainless-steel AISI 304 wire mesh–reinforced AlSi9Cu-matrix composite specimens obtained by gravity casting were investigated. Optical and scanning electron microscope ... -
Mode II brittle fracture: Recent developments
(Journal article; Peer reviewed, 2017)Fracture behaviour of V-notched specimens is assessed using two energy based criteria namely the averaged strain energy density (SED) and Finite Fracture Mechanics (FFM). Two different formulations of FFM criterion are ... -
Multiaxial fatigue strength of titanium alloys
(Journal article; Peer reviewed, 2017)The present paper investigates the multiaxial fatigue strength of sharp V-notched components made of titanium grade 5 alloy (Ti-6Al-4V). Axisymmetric notched specimens have been tested under combined tension and torsion ... -
Notch stress intensity factors under mixed mode loadings: An overview of recent advanced methods for rapid calculation
(Journal article; Peer reviewed, 2017)Recently some methods for the rapid calculation of notch stress intensity factors (NSIFs) have been developed and three of them are compared in this work. First, the criteria proposed by Lazzarin et al. and Treifi et al. ...