A Microscopic Study on Local Strain Rate Sensitivity of Polypropylene Syntactic Foam with Microballoons

2010 ◽  
Vol 160-162 ◽  
pp. 1280-1284
Author(s):  
En Yang Wang ◽  
Masaki Omiya
Keyword(s):  
Strain Rate ◽  
Microscopic Study ◽  
Strain Rate Sensitivity ◽  
Syntactic Foam ◽  
Rate Sensitivity ◽  
Local Strain ◽  
Local Strain Rate

A Microscopic Study on Local Strain Rate Sensitivity of Polypropylene Syntactic Foam with Microballoons

scholarly journals Local strain rate sensitivity of single α phase within a dual-phase Ti alloy

2016 ◽  
Vol 107 ◽  
pp. 298-309 ◽  
Author(s):  
Tea-Sung Jun ◽  
Zhen Zhang ◽  
Giorgio Sernicola ◽  
Fionn P.E. Dunne ◽  
T. Benjamin Britton
Keyword(s):  
Strain Rate ◽  
Strain Rate Sensitivity ◽  
Rate Sensitivity ◽  
Local Strain ◽  
Dual Phase ◽  
Ti Alloy ◽  
Α Phase ◽  
Local Strain Rate

scholarly journals Nanoindentation strain-rate jump tests for determining the local strain-rate sensitivity in nanocrystalline Ni and ultrafine-grained Al

2011 ◽  
Vol 26 (11) ◽  
pp. 1421-1430 ◽  
Author(s):  
Verena Maier ◽  
Karsten Durst ◽  
Johannes Mueller ◽  
Björn Backes ◽  
Heinz Werner Höppel ◽  
...  
Keyword(s):  
Strain Rate ◽  
Strain Rate Sensitivity ◽  
Rate Sensitivity ◽  
Local Strain ◽  
Ultrafine Grained ◽  
Image Position ◽  
Local Strain Rate

Abstract

Global and local strain rate sensitivity of bimodal Al-laminates produced by accumulative roll bonding

2016 ◽  
Vol 103 ◽  
pp. 643-650 ◽  
Author(s):  
Mathis Ruppert ◽  
Christopher Schunk ◽  
Daniel Hausmann ◽  
Heinz Werner Höppel ◽  
Mathias Göken
Keyword(s):  
Strain Rate ◽  
Strain Rate Sensitivity ◽  
Accumulative Roll Bonding ◽  
Rate Sensitivity ◽  
Local Strain ◽  
Roll Bonding ◽  
Global And Local ◽  
Local Strain Rate

Empirical Equations for a Study on Strain Rate Sensitivity of Polypropylene Syntactic Foam

2010 ◽  
Vol 143-144 ◽  
pp. 303-307
Author(s):  
En Yang Wang ◽  
Masaki Omiya
Keyword(s):  
Strain Rate ◽  
Strain Rate Sensitivity ◽  
Viscoelastic Properties ◽  
Elastic Moduli ◽  
Syntactic Foam ◽  
Rate Sensitivity ◽  
Empirical Equations ◽  
Syntactic Foams ◽  
Nominal Strain Rate ◽  
Nominal Strain

The strain rate sensitivity of polypropylene syntactic foams with polymer microballoons in the relative density from 0.5 to 0.8 is studied at the nominal strain rate ranged from 10-1 to 102 s -1. Two equations of matrix materials are introduced to represent the viscoelastic properties, and another two equations are proposed with respect to the parameters of matrix materials to estimate the elastic moduli and yield stresses of polymeric syntactic foams.

scholarly journals High Strain Rate Compressive Behavior of Polyurethane Resin and Polyurethane/Al2O3 Hollow Sphere Syntactic Foams

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Dung D. Luong ◽  
Vasanth Chakravarthy Shunmugasamy ◽  
Oliver M. Strbik III ◽  
Nikhil Gupta
Keyword(s):  
Compressive Strength ◽  
Strain Rate ◽  
Strain Rate Sensitivity ◽  
High Strain ◽  
Syntactic Foam ◽  
Rate Sensitivity ◽  
Syntactic Foams ◽  
Polyurethane Resin ◽  
Important Concern ◽  
Quasistatic Regime

Polyurethane resins and foams are finding extensive applications. Seat cushions and covers in automobiles are examples of these materials. In the present work, hollow alumina particles are used as fillers in polyurethane resin to develop closed-cell syntactic foams. The fabricated syntactic foams are tested for compressive properties at quasistatic and high strain rates. Strain rate sensitivity is an important concern for automotive applications due to the possibility of crash at high speeds. Both the polyurethane resin and the syntactic foam show strain rate sensitivity in compressive strength. It is observed that the compressive strength increases with strain rate. The energy absorbed up to 10% strain in the quasistatic regime is 400% higher for the syntactic foam in comparison to that of neat resin at the same strain rate.

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