Plastic deformation in glassy polymers by atomistic and mesoscopic simulations

A. S. Argon; V. V. Bulatov; P. H. Mott; U. W. Suter

doi:10.1122/1.550728

Plastic deformation in glassy polymers by atomistic and mesoscopic simulations

Journal of Rheology ◽

10.1122/1.550728 ◽

1995 ◽

Vol 39 (2) ◽

pp. 377-399 ◽

Cited By ~ 48

Author(s):

A. S. Argon ◽

V. V. Bulatov ◽

P. H. Mott ◽

U. W. Suter

Keyword(s):

Plastic Deformation ◽

Glassy Polymers ◽

Mesoscopic Simulations

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Hard and Soft: Principles of Polyner-Impregnated Concrete Using Elastomers

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.687.118 ◽

2013 ◽

Vol 687 ◽

pp. 118-123 ◽

Cited By ~ 1

Author(s):

Oliver Weichold ◽

Udo Antons

Keyword(s):

Plastic Deformation ◽

Fracture Mechanics ◽

Brittle Failure ◽

Elastic Moduli ◽

Domain Size ◽

Glassy Polymers ◽

Crack Deflection ◽

Micro Cracks ◽

Concrete Interface ◽

Crystalline Matrix

The effect of incorporating elastomeric domains in concrete is described from the point of fracture mechanics. Concrete is subject to brittle failure, since cracks propagate at an enormous speed in the crystalline matrix. However, micro cracks are attracted to volume elements with lower elastic moduli such as elastomeric domains. Cracks that encounter the concrete-elastomer interface are stopped since energy is dissipated by plastic deformation of and/or crack deflection by the elastomer. The domain size and the distribution of the elastomer as well as, and properties of the elastomer-concrete interface are crucial parameters. Such a combination differs substantially from previously prepared polymer-impregnated concretes, in which only glassy polymers were used.

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Plastic Deformation of Glassy Polymers: Correlation Between Shear Activation Volume and Entanglement Density

MRS Proceedings ◽

10.1557/proc-734-b3.3 ◽

2002 ◽

Vol 734 ◽

Cited By ~ 1

Author(s):

Janet Ho ◽

Leon Govaert ◽

Marcel Utz

Keyword(s):

Plastic Deformation ◽

Plane Strain ◽

Activation Volume ◽

Shear Zones ◽

Glassy Polymers ◽

Strain Rates ◽

Plastic Shear ◽

Elementary Processes ◽

Entanglement Density ◽

Phenylene Oxide

ABSTRACTThe shear activation volumes of miscible polystyrene-poly(2,6-dimethyl-1,4-phenylene oxide) (PS-PPO) blends at different PS-PPO ratios were determined experimentally by both plane strain and uniaxial compression at constant strain rates. We find that the same correlation between the shear activation volume and the entanglement density ρe holds for the blend as well as for various pure glassy polymers: . Since the shear activation volume is closely related to the size of the plastic shear zones, this correlation suggests that the cooperativity of the elementary processes of plastic deformation in glassy polymers scales with the entanglement density.

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Elasto-plastic deformation mechanisms of thermoset glassy polymers depending on the structural characteristic of hardener: A molecular dynamics study

58th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference ◽

10.2514/6.2017-0566 ◽

2017 ◽

Author(s):

Hyungbum Park ◽

Byungjo Kim ◽

Joonmyung Choi ◽

Maenghyo Cho

Keyword(s):

Molecular Dynamics ◽

Plastic Deformation ◽

Structural Characteristic ◽

Glassy Polymers ◽

Deformation Mechanisms

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Effect of intermolecular interactions on the plastic deformation of glassy polymers

Polymer ◽

10.1016/0032-3861(96)80844-5 ◽

1996 ◽

Vol 37 (7) ◽

pp. 1177-1181 ◽

Cited By ~ 11

Author(s):

Masaru Ishikawa ◽

Yoko Sato ◽

Hiroaki Higuchi

Keyword(s):

Plastic Deformation ◽

Intermolecular Interactions ◽

Glassy Polymers

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Indentation model and strain gradient plasticity law for glassy polymers

Journal of Materials Research ◽

10.1557/jmr.1999.0512 ◽

1999 ◽

Vol 14 (9) ◽

pp. 3784-3788 ◽

Cited By ~ 115

Author(s):

David C. C. Lam ◽

Arthur C. M. Chong

Keyword(s):

Plastic Deformation ◽

Strain Gradient ◽

Glassy Polymer ◽

Glassy Polymers ◽

Strain Gradient Plasticity ◽

Molecular Theory ◽

Indentation Hardness ◽

Gradient Plasticity ◽

Strain Gradients

Plastic deformation of metals is generally a function of the strain. Recently, both phenomenological and dislocation-based strain gradient plasticity laws were proposed after strain gradients were experimentally found to affect the plastic deformation of the metal. A strain gradient plasticity law is developed on the basis of molecular theory of yield for glassy polymers. A strain gradient plasticity modulus with temperature and molecular dependence is proposed and related to indentation hardness. The physics of the strain gradient plasticity in glassy polymer is then discussed in relation to the modulus.

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