Vito Diana
Polytechnic University of Milan
Elasticity (economics)PhysicsGeologyOrthotropic materialMathematical analysisBrittlenessPeridynamicsRigid bodyBeam (structure)Weibull distributionMeasure (mathematics)IsotropyGeotechnical engineeringMaterials scienceMonte Carlo methodSoil structure interactionLimit loadLinear elasticityLaminated glassElastic modulusDeformation (mechanics)Cauchy distributionMasonryMechanicsStructural engineeringNatural frequencyStructural element
14Publications
6H-index
124Citations
Publications 14
Newest
#1Vito DianaH-Index: 6
#2Valter CarvelliH-Index: 23
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#1Vito Diana (Polytechnic University of Milan)H-Index: 6
#2Roberto Ballarini (UH: University of Houston)H-Index: 36
Abstract A micropolar peridynamic model is presented for characterizing crack propagation in isotropic and orthotropic brittle materials. The analytical formulation of the two-dimensional model is based on the definition of a micropotential energy function that accounts for the four independent elastic constants that define orthotropy and that in the limit can be reduced to isotropy. A distinctive feature of the model is that the bonds’ elastic parameters are continuous functions of orientation ...
4 CitationsSource
#1Vito Diana (Polytechnic University of Milan)H-Index: 6
#2Valter Carvelli (Polytechnic University of Milan)H-Index: 23
Abstract A micropolar peridynamic model for in-plane electro-mechanical behavior of isotropic solids is presented in this paper. The conceived analytical implicit formulation of the electrical part of the model is based on the definition of a proper microelectrical energy function and a specific bond electrical field measure. A compatibility condition and a constitutive relationship have been derived and thus the electrical stiffness operator has been obtained. The electrical formulation is then...
6 CitationsSource
#1Vito Diana (Polytechnic University of Milan)H-Index: 6
#2Joseph F. Labuz (UMN: University of Minnesota)H-Index: 32
Last. Luigi Biolzi (Polytechnic University of Milan)H-Index: 26
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Abstract Mode I opening and mixed-mode I-II fracture experiments were performed with a homogeneous, fine grained sandstone using the three-point bending test. Specimens were notched at various lengths and positions of the beam edge to produce the desired loading condition. A micropolar peridynamic model was used to simulate the fracture initiation and propagation process. The analytical implicit formulation was derived by defining a specific microelastic energy density function for micropolar no...
9 CitationsSource
#1Vito DianaH-Index: 6
Last. S. Casolo
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#1Vito Diana (Polytechnic University of Milan)H-Index: 6
#2Siro Casolo (Polytechnic University of Milan)H-Index: 19
Abstract An original full orthotropic model for in-plane linear elasticity is proposed in the micropolar peridynamic analysis framework. The analytical formulation is derived from the definition of a specific microelastic energy function for micropolar nonlocal lattices which allows to obtain, for the first time, an orthotropic bond-based model characterized by four independent elastic moduli. An important feature of the model is that the bond properties, i.e. the elastic constants, are continuo...
15 CitationsSource
#1Vito Diana (Polytechnic University of Milan)H-Index: 6
#2Siro Casolo (Polytechnic University of Milan)H-Index: 19
Abstract A generalized micropolar bond-based Peridynamic model with shear deformability for linear and non-linear problems is proposed. The analytical implicit formulation is derived from the definition of a specific microelastic energy function for micropolar nonlocal lattices, giving particular attention to numerical implementation aspects of the model. We investigate the effectiveness of this formulation, empathizing the importance of considering particle’s rotations in enriched bond-based pe...
23 CitationsSource
#1Roberto Ballarini (UH: University of Houston)H-Index: 36
#2Vito Diana (Polytechnic University of Milan)H-Index: 6
Last. Siro Casolo (Polytechnic University of Milan)H-Index: 19
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A static meshfree implementation of the bond-based peridynamics formulation for linearly elastic solids is applied to the study of the transition from local to nonlocal behavior of the stress and displacement fields in the vicinity of a crack front and other sources of stress concentration. The long-range nature of the interactions between material points that is intrinsic to and can be modulated within peridynamics enables the smooth transition from the square-root singular stress fields predic...
9 CitationsSource
#1Rafael ShehuH-Index: 5
#2Vito DianaH-Index: 6
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#1Siro Casolo (Polytechnic University of Milan)H-Index: 19
#2Vito Diana (Polytechnic University of Milan)H-Index: 6
Abstract The failure of a laminated glass beam is investigated by two full discrete numerical approaches: a Rigid Body-Spring Model (RBSM) and a mesh-free numerical method arising from bond-based Peridynamics (PD). The brittle nature of the failure has been modelled and investigated by exploiting the discrete nature of these models, and specifically the PD which allows the bond/spring strengths to be explicitly related with the size and orientation of the defects in the structure. Strength value...
13 CitationsSource