Blar i NTNU Open på forfatter "Berto, Filippo"
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An innovative micromechanics-based three-dimensional long-term strength criterion for fracture assessment of rock materials
Zhou, Xiao-Ping; Huang, Xiao-Cheng; Berto, Filippo (Journal article; Peer reviewed, 2018)Rocks may exhibit time-dependent behaviors. Long-term strength criterion significantly dominates creep failure of rocks. Rocks contain many microcracks, which lead to degrade of long-term strength. In this paper, it is ... -
Analysis of the Fatigue Behavior of 3D-Printed Maraging 300 Steel
Cuzovic, Matija (Master thesis, 2020)3D-printing er en fremstillings teknologi som kan fremstille strukturelle deler laget av metall gjennom lag for lag oppbygging. Målet med dette studiet er å undersøke data fra utmattelses tester med to Maraging 300 stål ... -
Analysis of the plastic zone near the crack tips under the uniaxial tension using ordinary state‐based peridynamics
Zhou, XP; Shou, YD; Berto, Filippo (Journal article; Peer reviewed, 2018)In this paper, the plastic model of ordinary state‐based peridynamics is established. The size and shape of plastic zone around crack tips with the different inclination angles are simulated using ordinary state‐based ... -
Antibacterial Activity and Cell Responses of Vancomycin-Loaded Alginate Coating on ZSM-5 Scaffold for Bone Tissue Engineering Applications
Aslani, Z.; Nazemi, N.; Rajabi, N.; Kharaziha, M.; Bakhsheshi-Rad, H.R.; Kasiri-Asgarani, M.; Najafinezhad, A.; Ismail, A.F.; Sharif, S.; Berto, Filippo (Peer reviewed; Journal article, 2022)Despite the significant advancement in bone tissue engineering, it is still challenging to find a desired scaffold with suitable mechanical and biological properties, efficient bone formation in the defect area, and ... -
Antioxidant, antimicrobial and antiviral properties of herbal materials
Parham, Shokoh; Kharazi, Anousheh Zargar; Bakhsheshi-Rad, Hamid Reza; Nur, Hadi; Ismail, Ahmad Fauzi; Sharif, Safian; Ramakrishna, Seeram; Berto, Filippo (Peer reviewed; Journal article, 2020)Recently, increasing public concern about hygiene has been driving many studies to investigate antimicrobial and antiviral agents. However, the use of any antimicrobial agents must be limited due to their possible toxic ... -
Application of an average strain energy density criterion to obtain the mixed mode fracture load of granite rock tested with the cracked asymmetric four-point bend specimens
Razavi, Seyed Mohammad Javad; Aliha, Mohammad Reza Mohammad; Berto, Filippo (Journal article, 2018)Mixed mode brittle fracture behaviour of granite rock is studied experimentally and theoretically using Asymmetric Four Point Bend (AFPB) specimens containing pre-cracks subjected to different mixed mode loading conditions, ... -
Application of the HYB (Hybrid Metal Extrusion & Bonding) Process for lap Joining of Aluminium and Steel
Ristad, Mathias (Master thesis, 2020)Det originale målet med denne oppgaven var å teste and aluminium-stål «lap-weld» som er laget med «hybrid metal extrusion & bonding» (HYB). Men på grunn av COVID-19 pandemien som førte til stenging av universitetets ... -
Application of the Theory of Critical Distances for Fatigue Assessment of Notched Additively Manufactured Inconel 718
Hornnes, Marius (Master thesis, 2019)Inconel 718 er et materiale som er velegnet til bruk ved høye temperaturer og i korrosivt miljø. Materialet har i tillegg egenskaper som gjør det vanskelig å produsere komponenter med komplekse geometrier ved bruk av ... -
Application of the Theory of the Critical Distances based methodology for the analysis of Environmentally Assisted Cracking processes in biomaterials
González, Pablo; Cicero, Sergio; Peron, Mirco; Arroyo, Borja; Alvarez, Jose Alberto; Berto, Filippo (Peer reviewed; Journal article, 2020)The complex interaction between physiological stresses and corrosive human fluids can lead to the premature failure of metallic biomaterials due to the development of Environmental Assisted Cracking (EAC) processes. In ... -
Approaching the Limits of Aspect Ratio in Free-Standing Al2O3 3D Shell Structures
Burgmann, Stephanie; Lid, Markus Joakim; Chaikasetsin, Settasit; Bjørdal, Dag Skjerven; Prinz, Fritz; Provine, John; Berto, Filippo; Van Helvoort, Antonius; Torgersen, Jan (Peer reviewed; Journal article, 2022)Nanoscale free-standing membranes are used for a variety of sensors and other micro/nano-electro-mechanical systems devices. To tune performance, it is indispensable to understand the limits of aspect ratios achievable. ... -
Architected cellular materials: A review on their mechanical properties towards fatigue-tolerant design and fabrication
Benedetti, M.; Du Plessis, Anton; Ritchie, R.O.; Dallago, M.; Razavi, Seyed Mohammad Javad; Berto, Filippo (Peer reviewed; Journal article, 2021)Additive manufacturing of industrially-relevant high-performance parts and products is today a reality, especially for metal additive manufacturing technologies. The design complexity that is now possible makes it particularly ... -
Assessment of mixed mode fatigue crack growth under biaxial loading using an iterative technique
Razavi, Seyed Mohammad Javad; Ayatollahi, Majid reza; Berto, Filippo (Peer reviewed; Journal article, 2020)Crack growth is investigated numerically in a cruciform specimen with an inclined center crack subjected to biaxial fatigue loading. The mixed-mode fatigue crack growth was examined using a parametric study both on the ... -
Assessment of tensile and fatigue behavior of PEEK specimens in a physiologically relevant environment
Peron, Mirco; Torgersen, Jan; Berto, Filippo (Journal article; Peer reviewed, 2019)In the last decades the necessity of implant devices is continuously increasing. The researchers have thus focused their attentions on the development of new biocompatible materials, in particular polymers. Among them, ... -
Assessment of the Mechanical Integrity of a 2 mm AA6060-T6 Butt Weld Produced Using the Hybrid Metal Extrusion & Bonding (HYB) Process – Part I: Bend Test Results
Sandnes, Lise; Romere, Luca; Berto, Filippo; Welo, Torgeir; Grong, Øystein (Journal article; Peer reviewed, 2019)The present investigation is concerned with butt welding of 2 mm thin AA6060-T6 profiles at room temperature (RT), using the HYB process and AA6082-T4 as filler material. In the as-welded condition, the 1000 mm long butt ... -
Assessment of the Mechanical Integrity of a 2 mm AA6060-T6 Butt Weld Produced Using the Hybrid Metal Extrusion & Bonding (HYB) Process – Part II: Tensile Test Results
Sandnes, Lise; Romere, Luca; Grong, Øystein; Berto, Filippo; Welo, Torgeir (Journal article; Peer reviewed, 2019)The present investigation is concerned with solid state butt welding of 2 mm thin AA6060-T6 profiles at room temperature (RT), using the HYB process and AA6082-T4 as filler material (FM). In Part II of this investigation ... -
Averaged strain energy density criterion for rupture assessment of cracked rubbers: A novel method for determination of critical SED
Heydari-Meybodi, Mahdi; Ayatollahi, Majid Reza; Berto, Filippo (Journal article; Peer reviewed, 2018)In the present study, the application of averaged strain energy density (ASED) criterion has been extended to hyperelastic materials. Because of the material and geometry nonlinearities, commonly known for rubber-like ... -
Averaged strain energy density estimated rapidly from the nodal stresses by FEM for cracks under mixed mode loadings including the T-stress contribution
Meneghetti, Giovanni; Campagnolo, Alberto; Berto, Filippo (Journal article; Peer reviewed, 2019)The present contribution reviews a recently proposed method to rapidly estimate the averaged SED at the tip of short as well as long cracks under in-plane I+II and long cracks under out-of-plane I+III mixed mode loadings. ... -
Averaged strain energy density to assess mixed mode I/III fracture of U-notched GPPS samples
Saboori, Behnam; Torabi, Ali reza; Berto, Filippo; Razavi, Seyed Mohammad Javad (Journal article, 2018)In the present contribution, fracture resistance of U-notched GPPS members under mixed mode I/III loading conditions is assessed by using the Averaged Strain Energy Density (ASED) criterion. This criterion has been founded ... -
Based on energy approach for the fatigue life evaluation of micrometric-sized single-crystal silicon notched specimens
Bressan, Stefano; Razavi, Seyed Mohammad Javad; Berto, Filippo (Journal article; Peer reviewed, 2018)Fatigue behavior of single-crystal silicon notched specimens have been analyzed employing a strain energy density parameter. The micrometric specimens obtained from {1 0 0} and {1 1 0} wafers and characterized by five ... -
Bimetallic Aluminum - Copper Hybrid Metal Extrusion & Bonding Welded Electrical Busbars
Rustad, Peder (Master thesis, 2021)Interessen for ulik metallsveising for elektriske applikasjoner øker. Aluminium (Al) - Kobber (Cu) forbindelser var opprinnelig boltet, men på grunn av hyppig vedlikehold har kaldsveis bindingsteknikker vært ettertraktet ...