OS09-2-2 High Strain-Rate Compressive Properties and Constitutive Modeling of Selected Polymers

2011 ◽  
Vol 2011.10 (0) ◽  
pp. _OS09-2-2-
Author(s):  
Kenji NAKAI ◽  
Takashi YOKOYAMA
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
Constitutive Modeling ◽  
High Strain ◽  
Compressive Properties

Thermo-viscoplastic behavior and constitutive modeling of pure copper under high-strain-rate shear condition

2019 ◽  
Vol 129 ◽  
pp. 306-319 ◽  
Author(s):  
Zejian Xu ◽  
Yu Liu ◽  
Hongzhi Hu ◽  
Xiaodong He ◽  
Fenglei Huang
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
Constitutive Modeling ◽  
High Strain ◽  
Pure Copper ◽  
Shear Condition

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.

Effect of hollow sphere size and size distribution on the quasi-static and high strain rate compressive properties of Al-A380–Al2O3 syntactic foams

2013 ◽  
Vol 49 (3) ◽  
pp. 1267-1278 ◽  
Author(s):  
Joseph A. Santa Maria ◽  
Benjamin F. Schultz ◽  
J. B. Ferguson ◽  
Nikhil Gupta ◽  
Pradeep K. Rohatgi
Keyword(s):  
High Strain Rate ◽  
Strain Rate ◽  
Size Distribution ◽  
Hollow Sphere ◽  
High Strain ◽  
Syntactic Foams ◽  
Compressive Properties ◽  
Sphere Size

The effect of multiwall carbon nanotubes (MWCNT) on the high strain rate compressive properties of syntactic nanocomposite foams

2012 ◽  
Vol 18 (S2) ◽  
pp. 1644-1645 ◽  
Author(s):  
J. Al-Sharab ◽  
B. Joshi ◽  
N. Gupta
Keyword(s):  
Carbon Nanotubes ◽  
High Strain Rate ◽  
Strain Rate ◽  
High Strain ◽  
Multiwall Carbon Nanotubes ◽  
Compressive Properties ◽  
Nanocomposite Foams ◽  
Multiwall Carbon

Extended abstract of a paper presented at Microscopy and Microanalysis 2012 in Phoenix, Arizona, USA, July 29 – August 2, 2012.

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