Evolution of plastic anisotropy in amorphous polymers during finite straining

Arruda, Ellen M.; Boyce, Mary C.

doi:10.1016/0749-6419(93)90034-n

Cited by 412 publications

(253 citation statements)

References 27 publications

Supporting

Mentioning

246

Contrasting

Unclassified

Order By: Relevance

“…The Langevin spring accounts for the strain hardening post-yield due to the alignment of the macromolecular network built of entangled polymer molecules [26]. A large family of 3D pressure, temperature, and strain rate dependent models [27][28][29] has developed based on the Ree-Eyring [24] theory. The most recent of these model developments by Mulliken and Boyce [20] provides a three-dimensional temperature, pressure, and rate dependent finite-strain model capable of capturing both the a-and b-transitions.…”

Section: Introductionmentioning

confidence: 99%

High Strain Rate Mechanics of Polymers: A Review

Siviour

Jordan

2016

J. dynamic behavior mater.

250

117

View full text Add to dashboard Cite

The mechanical properties of polymers are becoming increasingly important as they are used in structural applications, both on their own and as matrix materials for composites. It has long been known that these mechanical properties are dependent on strain rate, temperature, and pressure. In this paper, the methods for dynamic loading of polymers will be briefly reviewed. The high strain rate mechanical properties of several classes of polymers, i.e. glassy and rubbery amorphous polymers and semi-crystalline polymers will be reviewed. Additionally, time-temperature superposition for rate dependent large strain properties and pressure dependence in polymers will be discussed. Constitutive modeling and shock properties of polymers will not be discussed in this review.

show abstract

Section: Introductionmentioning

confidence: 99%

High Strain Rate Mechanics of Polymers: A Review

Siviour

Jordan

2016

J. dynamic behavior mater.

250

117

View full text Add to dashboard Cite

show abstract

“…They reported that the model of dissociable cohesion points gave a reasonable explanation to all the observations on the polymer for its optical and mechanical properties. Arruda and Boyce [12] also performed uniaxial and plane-strain compression tests at temperatures below the glass transition to study the effect of anisotropy on deformation; stress-strain behaviour was found to depend strongly on the state of deformation.…”

Section: Introductionmentioning

confidence: 99%

Temperature-dependent mechanical behaviour of PMMA: Experimental analysis and modelling

2017

View full text Add to dashboard Cite

b s t r a c tAn experimental study of temperature-dependent mechanical behaviour of Poly-methyl methacrylate (PMMA) was performed at a range of temperatures (20 C, 40 C, 60 C and 80 C) below its glass transition point (108 C) under uniaxial tension and three-point bending loading conditions. This study was accompanied by simulations aimed at identification of material parameters for two different constitutive material models. Experimental flow curves obtained for PMMA were used in elasto-plastic analysis, while a sim-flow optimization tool was employed for a two-layer viscoplasticity model. The temperature increase significantly affected mechanical behaviour of PMMA, with quasi-brittle fracture at room temperature and super-plastic behaviour (ε>110%) at 80 C. The two-layer viscoplasticity material model was found to agree better with the experimental data obtained for uniaxial tension than the elasto-plastic description.

show abstract

“…Crystal plasticity [19] is used as a constitutive model for the crystalline phase, with viscous slip on the (limited number of) slip systems. The non-crystalline phase can be modelled with one of the material models suitable for glassy polymers, such as the model by Buckley et al [20,21], by Boyce et al [22,23] and by Govaert et al [24,25]. In this article, the model by Govaert et al, referred to as the EGP model, is used.…”

Section: Introductionmentioning

confidence: 99%