Influence of molecular parameters on high-strain deformation of polyethylene in the plane-strain compression. Part I. Stress–strain behavior

Polymer ◽  
2005 ◽  
Vol 46 (19) ◽  
pp. 8210-8221 ◽  
Author(s):  
Z. Bartczak ◽  
M. Kozanecki
Keyword(s):  
Plane Strain ◽  
High Strain ◽  
Plane Strain Compression ◽  
Stress Strain ◽  
Molecular Parameters ◽  
Strain Behavior

scholarly journals Stress-Strain Behavior of Sand in Plane Strain Compression, Extension and Cyclic Loading Tests

1999 ◽  
Vol 39 (5) ◽  
pp. 31-45 ◽  
Author(s):  
Toru Masuda ◽  
Fumio Tatsuoka ◽  
Shinichi Yamada ◽  
Takeshi Sato
Keyword(s):  
Cyclic Loading ◽  
Plane Strain ◽  
Plane Strain Compression ◽  
Stress Strain ◽  
Strain Behavior ◽  
Loading Tests ◽  
Cyclic Loading Tests

High Strain-Rate Compressive Behavior and Constitutive Modeling of Selected Polymers Using Modified Ramberg-Osgood Equation

2014 ◽  
Vol 566 ◽  
pp. 80-85
Author(s):  
Kenji Nakai ◽  
Takashi Yokoyama
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
Compressive Stress ◽  
Constitutive Modeling ◽  
High Strain ◽  
Strain Rates ◽  
Stress Strain ◽  
Strain Behavior ◽  
Least Squares Fit ◽  
Wide Range

The present paper is concerned with constitutive modeling of the compressive stress-strain behavior of selected polymers at strain rates from 10-3 to 103/s using a modified Ramberg-Osgood equation. High strain-rate compressive stress-strain curves up to strains of nearly 0.08 for four different commercially available extruded polymers were determined on the standard split Hopkinson pressure bar (SHPB). The low and intermediate strain-rate compressive stress-strain relations were measured in an Instron testing machine. Six parameters in the modified Ramberg-Osgood equation were determined by fitting to the experimental stress-strain data using a least-squares fit. It was shown that the monotonic compressive stress-strain behavior over a wide range of strain rates can successfully be described by the modified Ramberg-Osgood constitutive model. The limitations of the model were discussed.

Stress–strain behavior of a polyurea and a polyurethane from low to high strain rates

Polymer ◽  
2007 ◽  
Vol 48 (8) ◽  
pp. 2208-2213 ◽  
Author(s):  
Sai S. Sarva ◽  
Stephanie Deschanel ◽  
Mary C. Boyce ◽  
Weinong Chen
Keyword(s):  
High Strain ◽  
Strain Rates ◽  
High Strain Rates ◽  
Stress Strain ◽  
Strain Behavior
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