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Relevant bibliographies by topics / Micropolar Cohesive Damage Model

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Academic literature on the topic 'Micropolar Cohesive Damage Model'

Author: Grafiati

Published: 6 September 2023

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Journal articles on the topic "Micropolar Cohesive Damage Model"

1

Rahaman, Md M., S. P. Deepu, D. Roy, and J. N. Reddy. "A micropolar cohesive damage model for delamination of composites." Composite Structures 131 (November 2015): 425–32. http://dx.doi.org/10.1016/j.compstruct.2015.05.026.

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2

Suh, Hyoung Suk, WaiChing Sun, and Devin T. O’Connor. "A phase field model for cohesive fracture in micropolar continua." Computer Methods in Applied Mechanics and Engineering 369 (September 2020): 113181. http://dx.doi.org/10.1016/j.cma.2020.113181.

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3

Roy, Samit, and Yong Wang. "Analytical Solution for Cohesive Layer Model and Model Verification." Polymers and Polymer Composites 13, no. 8 (2005): 741–52. http://dx.doi.org/10.1177/096739110501300801.

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The objective of this work was to find an analytical solution to the stresses in the cohesive damage zone and the damage zone length at the interface between a fibre reinforced polymer (FRP) plate and concrete substrate. Analytical solutions have been derived to predict the stress in the cohesive layer when considering the deformation in the stiff substrate. A two-dimensional cohesive layer constitutive model with a prescribed traction-separation (stress-strain) law was constructed using a modified Williams' approach, and analytical solutions derived for the elastic zone as well as the damage zone. Detailed benchmark comparisons of analytical results with finite element predictions for a double cantilever beam specimen were performed for model verification, and issues related to cohesive layer thickness were investigated. It was observed that the assumption of a rigid substrate in analytical modelling can lead to inaccurate analytical prediction of the cohesive damage zone length.

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4

Pouya, Ahmad, and Pedram Bemani Yazdi. "A damage-plasticity model for cohesive fractures." International Journal of Rock Mechanics and Mining Sciences 73 (January 2015): 194–202. http://dx.doi.org/10.1016/j.ijrmms.2014.09.024.

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5

Silitonga, Sarmediran, Johan Maljaars, Frans Soetens, and Hubertus H. Snijder. "Numerical Simulation of Fatigue Crack Growth Rate and Crack Retardation due to an Overload Using a Cohesive Zone Model." Advanced Materials Research 891-892 (March 2014): 777–83. http://dx.doi.org/10.4028/www.scientific.net/amr.891-892.777.

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In this work, a numerical method is pursued based on a cohesive zone model (CZM). The method is aimed at simulating fatigue crack growth as well as crack growth retardation due to an overload. In this cohesive zone model, the degradation of the material strength is represented by a variation of the cohesive traction with respect to separation of the cohesive surfaces. Simulation of crack propagation under cyclic loads is implemented by introducing a damage mechanism into the cohesive zone. Crack propagation is represented in the process zone (cohesive zone in front of crack-tip) by deterioration of the cohesive strength due to damage development in the cohesive element. Damage accumulation during loading is based on the displacements in the cohesive zone. A finite element model of a compact tension (CT) specimen subjected to a constant amplitude loading with an overload is developed. The cohesive elements are placed in front of the crack-tip along a pre-defined crack path. The simulation is performed in the finite element code Abaqus. The cohesive elements behavior is described using the user element subroutine UEL. The new damage evolution function used in this work provides a good agreement between simulation results and experimental data.

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6

Kim, Dae Kyu. "A constitutive model with damage for cohesive soils." KSCE Journal of Civil Engineering 8, no. 5 (2004): 513–19. http://dx.doi.org/10.1007/bf02899578.

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7

Goodarzi, M. Saeed, Hossein Hosseini-Toudeshky, and Meisam Jalalvand. "Shear-Mode Viscoelastic Damage Formulation Interface Element." Key Engineering Materials 713 (September 2016): 167–70. http://dx.doi.org/10.4028/www.scientific.net/kem.713.167.

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In this paper, a viscoelastic-damage cohesive zone model is formulated and discussed. The interface element constitutive law has two elastic and damage regimes. Viscoelastic behaviour has been assumed for the shear stress in the elastic regime. Three element Voigt model has been used for the formulation of relaxation modulus of the material. Shear Stress has been evaluated in the elastic regime of the interface with integration over the history of the applied strain at the interface. Damage evolution proceeds according to the bilinear cohesive constitutive law up to the complete decohesion. Numerical examples for one element model has been presented to see the effect of parameters on cohesive constitutive law.

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8

Abu Al-Rub, Rashid K., and Ammar Alsheghri. "Cohesive Zone Damage-Healing Model for Self-Healing Materials." Applied Mechanics and Materials 784 (August 2015): 111–18. http://dx.doi.org/10.4028/www.scientific.net/amm.784.111.

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A cohesive zone damage-healing model (CZDHM) derived based on the laws of thermodynamics for self-healing materials is presented. The well-known nominal, healing, and effective configurations of classical continuum damage mechanics are extended to self-healing materials. A new physically-based internal crack healing state variable is proposed for describing the healing evolution within the crack cohesive zone. The effects of temperature, crack-closure, and resting time on the healing behavior are discussed. Numerical examples are conducted to show the various novel features of the formulated CZDHM.

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9

Kale, Sohan, Seid Koric, and Martin Ostoja-Starzewski. "Stochastic Continuum Damage Mechanics Using Spring Lattice Models." Applied Mechanics and Materials 784 (August 2015): 350–57. http://dx.doi.org/10.4028/www.scientific.net/amm.784.350.

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In this study, a planar spring lattice model is used to study the evolution of damage variabledLin disordered media. An elastoplastic softening damage constitutive law is implemented which introduces a cohesive length scale in addition to the disorder-induced one. The cohesive length scale affects the macroscopic response of the lattice with the limiting cases of perfectly brittle and perfectly plastic responses. The cohesive length scale is shown to affect the strength-size scaling such that the strength increases with increasing cohesive length scale for a given size. The formation and interaction of the microcracks is easily captured by the inherent discrete nature of the model and governs the evolution ofdL. The proposed method provides a way to extract a mesoscale dependent damage evolution rule that is linked directly to the microstructural disorder.

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10

Iqbal, Javed. "Numerical Simulation of Cracking in Asphalt Concrete Through Continuum and Discrete Damage Model." International Journal for Research in Applied Science and Engineering Technology 9, no. 11 (2021): 2018——2020. http://dx.doi.org/10.22214/ijraset.2021.39123.

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Abstract: This study describes the development of Continuum and Discrete Damage Models in commercial finite element code Abaqus/Standard. The Concrete Damage Plasticity Model has been simulated, analysed, and compared the result with the experimental data. For verification, the Cohesive Zone Model has been simulated and analysed. Furthermore, the Extended Finite Element Model and concrete damage model are discussed and compared. The continuum damage model tends to simulate the complex fracture behaviour like crack initiation and propagation along with the invariance of the result, while the cohesive zone model can simulate and propagate the crack as well as the good agreement of the result. Further work in the proposed numerical models can better simulate the fracture behaviour of asphalt concrete in near future. Keywords: Model, Concrete, Cohesive Zone, Finite element, Abaqus.

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