Search Results - "Roy, Pranesh"
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Phase field based peridynamics damage model for delamination of composite structures
Published in Composite structures (15-11-2017)“…We extend and exploit a phase field based peridynamics (PD) damage model ([39]) for studying delamination of composite structures. Utilizing a phase field…”
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Finite deformation micropolar peridynamic theory: Variational consistency of wryness measure
Published in International journal of mechanical sciences (01-06-2024)“…•Alternative proof of variational consistency of the wryness measure is furnished.•A finite deformation micropolar peridynamics (PD) theory is developed.•A new…”
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3
Peridynamics modeling of cellular elastomeric metamaterials: Application to wave isolation
Published in International journal of mechanical sciences (15-09-2023)“…•Peridynamics theory is used to model elastomeric cellular metamaterials with cracks.•Cracks are used as reflectors of elastic waves.•Local elastic instability…”
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Peridynamics model of torsion-warping: Application to lattice beam structures
Published in Thin-walled structures (01-01-2025)“…•A finite deformation peridynamics (PD) beam theory is developed to capture warping.•A new bond breaking criterion is proposed for PD beam theory.•Numerical…”
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5
Peridynamics model for flexoelectricity and damage
Published in Applied Mathematical Modelling (01-04-2019)“…A flexoelectric peridynamic (PD) theory is proposed. In the PD framework, the formulation introduces a nanoscale flexoelectric coupling that entails…”
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Finite deformation peridynamics shell theory: Application to mechanical metasurfaces
Published in Thin-walled structures (01-12-2024)“…•A finite deformation Simo-Reissner peridynamic (PD) shell theory is developed.•A new bond breaking criterion is postulated for PD shell.•Simulations reveal…”
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Peridynamic modeling of bonded-lap joints with viscoelastic adhesives in the presence of finite deformation
Published in Computer methods in applied mechanics and engineering (01-02-2021)“…This study concerns damage initiation and its progression in bonded-lap joints with adhesives under quasi-static loading conditions. The weak form of…”
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Peridynamic simulation of finite elastic deformation and rupture in polymers
Published in Engineering fracture mechanics (01-09-2020)“…•Peridynamics for finite elastic deformation and rupture in polymers.•Arruda-Boyce material model with slight compressibility.•Bond-associated deformation…”
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Peridynamic modeling of elastic instability and failure in lattice beam structures
Published in Computer methods in applied mechanics and engineering (01-10-2023)“…A Simo-Reissner peridynamic (PD) beam theory is presented to model elastic instability and subsequent failure in a lattice beam structure. Governing equations…”
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10
Peridynamic correspondence model for finite elastic deformation and rupture in Neo-Hookean materials
Published in International journal of non-linear mechanics (01-11-2020)“…This study considers finite elastic deformation and rupture in rubber-like materials under quasi-static loading conditions by employing the bond-associated…”
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Peridynamics contact model: Application to healing using phase field theory
Published in International journal of mechanical sciences (15-10-2024)“…•A novel contact algorithm is proposed in peridynamics framework.•A healing phase field theory is developed to model impact induced bonding.•Impact, rebound,…”
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12
Peridynamic simulation of creep deformation and damage
Published in Continuum mechanics and thermodynamics (01-09-2024)“…This study presents a nonordinary state-based (NOSB) peridynamic (PD) modeling of creep deformation and damage. The force density vectors in PD equilibrium…”
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13
Imposition of local boundary conditions in peridynamics without a fictitious layer and unphysical stress concentrations
Published in Computer methods in applied mechanics and engineering (01-04-2022)“…This study introduces a general approach for the imposition of local boundary conditions in non-ordinary state-based peridynamics (NOSB PD) to eliminate the…”
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14
Cauchy–Maxwell equations: A space–time conformal gauge theory for coupled electromagnetism and elasticity
Published in International journal of non-linear mechanics (01-11-2020)“…A space–time conformal gauge theory is used to develop a unified continuum model describing myriad electromechanical and magnetomechanical coupling effects…”
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15
A modified peridynamics correspondence principle: Removal of zero-energy deformation and other implications
Published in Computer methods in applied mechanics and engineering (01-04-2019)“…We look for an enhancement of the correspondence model of peridynamics, emphasizing the elimination of zero-energy deformation modes. We propose an approach…”
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16
Peridynamics damage model through phase field theory
Published in International journal of mechanical sciences (01-08-2017)“…We attempt a reformulation of the phase field theory in the framework of peridynamics (PD) to arrive at a continuum damage model. This obtains a better…”
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17
A peridynamic theory for linear elastic shells
Published in International journal of solids and structures (01-05-2016)“…A state-based peridynamic formulation for linear elastic shells is presented. The emphasis is on introducing, possibly for the first time, a general surface…”
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18
A peridynamic model for plasticity: Micro-inertia based flow rule, entropy equivalence and localization residuals
Published in Computer methods in applied mechanics and engineering (01-12-2017)“…This article presents a non-ordinary state-based peridynamic (PD) model for thermo-visco-plasticity that incorporates a micro-inertia driven dynamic flow rule…”
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19
A conformal gauge theory of solids: Insights into a class of electromechanical and magnetomechanical phenomena
Published in Journal of the mechanics and physics of solids (01-09-2019)“…A gauge theory of solids with conformal symmetry is formulated to model various electromechanical and magnetomechanical coupling phenomena. If the pulled back…”
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20
Cauchy-Maxwell equations: A unified field theory for coupled electromagnetism and elasticity
Published 19-11-2019“…A conformal gauge theory is used to describe and unify myriad electromechanical and magnetomechanical coupling effects observed in solid continua. Using a…”
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