Filippo Berto
Norwegian University of Science and Technology
Ultimate tensile strengthEngineeringMode (statistics)Fatigue limitFinite element methodBrittlenessComposite materialControl volumeMetallurgyMaterials scienceWeldingStrain energy density functionMixed modeFracture (geology)Stress intensity factorMechanicsFracture mechanicsStructural engineeringStress (mechanics)Fracture toughness
858Publications
68H-index
12.1kCitations
Publications 902
Newest
#1Anis Mohabeddine (University of Porto)H-Index: 1
#2José A.F.O. Correia (University of Porto)H-Index: 27
Last. Filippo Berto (NTNU: Norwegian University of Science and Technology)H-Index: 68
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Abstract null null This paper presents a new approach to estimate the fatigue life of metallic details retrofitted with bonded CFRP patch. Existing phenomenological and analytical methods to predict the fatigue life of metallic structural details retrofitted with bonded CFRP patch do not consider the cyclic degradation of the composite patch. As for all materials the composite patch (CFRP and adhesive) will experience degradation during fatigue cyclic loading. In this regard, a new approach that...
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#1Ricardo Branco (UC: University of Coimbra)H-Index: 19
#2Pedro Prates (UC: University of Coimbra)H-Index: 11
Last. Filippo Berto (NTNU: Norwegian University of Science and Technology)H-Index: 68
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Abstract null null This paper deals with the notch fatigue behaviour and crack initiation life estimation in maraging steel fabricated by laser beam powder bed fusion under multiaxial loading. Tests are conducted in tubular geometries with lateral holes considering different normal stress to shear stress ratios and multiaxial loading levels. The cyclic stress–strain response at the notch-controlled process zone is simulated numerically using two alternative approaches: a generalised isotropic pl...
1 CitationsSource
#1Andrea Tridello (Polytechnic University of Turin)H-Index: 12
#2C. Boursier Niutta (Polytechnic University of Turin)H-Index: 2
Last. Davide Salvatore Paolino (Polytechnic University of Turin)H-Index: 17
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Abstract null null It is well-known that fatigue failures in VHCF originate from defects present within the risk-volume. Moreover, experimental results have shown that the larger the specimen size and the risk-volume, the shorter is the VHCF life. This is known as size-effect and is generally due to the statistical increment of the defect size with the material volume. null In the paper, size-effect in VHCF is critically revised. The experimental results obtained by testing specimens with differ...
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#1Costanzo Bellini (University of Cassino)H-Index: 17
#2Filippo Berto (NTNU: Norwegian University of Science and Technology)H-Index: 68
Last. Francesco Iacoviello (University of Cassino)H-Index: 18
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Abstract null null Shape memory alloys are able to recover the initial shape even after a large deformation. The memory property is due to the ability to change the microstructure under a variation of the stress state or the temperature. The stress-strain curve is characterized by the presence of a stage where the slope of the curve sharply decreases and the initial microstructure transforms into a new one. In this work, an integrated microstructural-mechanical model is proposed for the equiatom...
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#1Victor Rodrigues Ribeiro (UNESP: Sao Paulo State University)
#2José A.F.O. Correia (University of Porto)H-Index: 27
Last. Filippo Berto (NTNU: Norwegian University of Science and Technology)H-Index: 68
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Abstract null null Fatigue is one of the main causes of failures as well as mechanical fractures in structural details made of aluminium alloys under cyclic loading, where the materials (during the crack growth process) are subject to the stress R-ratio effects and crack closure phenomenon. null In this research work, a comparison of the effect of various crack closure/opening models on the fatigue crack growth behaviour of 6061-T651 aluminium alloy is presented. The crack closure models under c...
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#1Reza Masoudi Nejad (University of Electronic Science and Technology of China)H-Index: 14
#2Filippo Berto (NTNU: Norwegian University of Science and Technology)H-Index: 68
Abstract null null In this paper, the fatigue behavior of railway wheel specimens subjected to cyclic loading have been investigated via experimental tests and numerical analysis. The material behaviour of the wheel specimen has been modelled by means of the Ramberg‐Osgood equation. The non‐linear Kujawski‐Ellyin (KE) model has been adopted for the fatigue crack propagation under small‐scale yielding (SSY) conditions. The formulation of the rigid-insert crack closure (RICC) model has been applie...
1 CitationsSource
#1Byron Alexander Blakey-Milner (Stellenbosch University)H-Index: 1
#2Paul R. Gradl (MSFC: Marshall Space Flight Center)H-Index: 7
Last. Anton du Plessis (Stellenbosch University)H-Index: 22
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Abstract null null Metal additive manufacturing involves manufacturing techniques that add material to produce metallic components, typically layer by layer. The substantial growth in this technology is partly driven by its opportunity for commercial and performance benefits in the aerospace industry. The fundamental opportunities for metal additive manufacturing in aerospace applications include: significant cost and lead-time reductions, novel materials and unique design solutions, mass reduct...
2 CitationsSource
#1Reza Masoudi Nejad (University of Electronic Science and Technology of China)H-Index: 14
#2Zhiliang Liu (University of Electronic Science and Technology of China)H-Index: 2
Last. Filippo Berto (NTNU: Norwegian University of Science and Technology)H-Index: 68
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Abstract null null The purpose of this paper is to investigate the effect of variable amplitude service loading conditions and wear phenomenon on reliability analysis for rail steel. For this purpose, the rail with the exact geometry of the profile in the railway systems and the boundary element method has been used. Also, the geometry correction functions of the five cracks, as a function of a crack size are determined by using nonlinear regression analysis estimating the statistical descriptor...
9 CitationsSource
#1Chiara Bertolin (NTNU: Norwegian University of Science and Technology)H-Index: 15
#2Poorya Karvan (NTNU: Norwegian University of Science and Technology)H-Index: 1
Last. Filippo Berto (NTNU: Norwegian University of Science and Technology)H-Index: 68
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Abstract null null Wood is largely used in construction purposes; however, its proneness to changes in the relative humidity can negatively affect its structural integrity. This research paper aims to calculate the amount of hygric stress induced by variations of relative humidity in Scots pine wood. To this end, on the basis of the already conducted experimental tests, a mathematical approach is introduced. This method allows to obtain the values of hygric stress based on the initial values of ...
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#1Peng Zhao (ECUST: East China University of Science and Technology)H-Index: 1
Abstract null null Fatigue life prediction of engineering components is essential for safe operation of mechanical systems. Energy based models have attracted much attention due to the combined considerations of stress and strain behavior, especially in low cycle fatigue regime. In this work, a new plastic strain energy density (PSED) based life prediction model for notched components subjected to cyclic loading is proposed, in which cyclic stress-strain responses under stress- and strain-contro...
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