Prediction of strain rate sensitivity of high density polyethylene using integral transform of dynamic mechanical analysis data

Polymer ◽  
2016 ◽  
Vol 101 ◽  
pp. 1-6 ◽  
Author(s):  
Steven Eric Zeltmann ◽  
B.R. Bharath Kumar ◽  
Mrityunjay Doddamani ◽  
Nikhil Gupta
Keyword(s):  
Strain Rate ◽  
Dynamic Mechanical Analysis ◽  
Strain Rate Sensitivity ◽  
High Density Polyethylene ◽  
Integral Transform ◽  
Rate Sensitivity ◽  
Analysis Data ◽  
Mechanical Analysis ◽  
High Density ◽  
Dynamic Mechanical

Advanced properties of composites of recycled high-density polyethylene and microfibers of sugarcane bagasse

2017 ◽  
Vol 52 (7) ◽  
pp. 867-876 ◽  
Author(s):  
Sibele Piedade Cestari ◽  
Gerson Alberto Valencia Albitres ◽  
Luis C Mendes ◽  
Volker Altstädt ◽  
Jair Braga Gabriel ◽  
...  
Keyword(s):  
Optical Microscopy ◽  
Dynamic Mechanical Analysis ◽  
Sugarcane Bagasse ◽  
High Density Polyethylene ◽  
Building Materials ◽  
Mechanical Analysis ◽  
High Density ◽  
Wide Angle ◽  
X Ray ◽  
Dynamic Mechanical

Aiming to systematically convert post-consumer plastics in building materials, we compounded recycled high-density polyethylene and sugarcane bagasse. We ranged the polymer/filler ratio from 100/0 to 60/40, and assessed the properties using optical microscopy, water absorption test, adhesion by tape test, low-field nuclear magnetic resonance, dynamic-mechanical analysis, and wide-angle X-ray diffractometry. The optical microscopy of the triturated bagasse showed the reduced and heterogeneous fiber sizes. The absorption and adhesion test showed that the polymer more heavily filled with bagasse can better absorb and anchor paint with organic solvent base. The dynamic-mechanical analysis and wide-angle X-ray diffractometry led us to believe that the bagasse fibers somehow structured the amorphous region amongst the crystallized lamellae of the polymeric matrix. We concluded that these composites have interesting properties to produce building materials.

scholarly journals The Dynamic Mechanical Analysis of Highly Filled Rice Husk Biochar/High-Density Polyethylene Composites

Polymers ◽  
2017 ◽  
Vol 9 (11) ◽  
pp. 628 ◽  
Author(s):  
Qingfa Zhang ◽  
Hongzhen Cai ◽  
Xueyong Ren ◽  
Lingshuai Kong ◽  
Jianbiao Liu ◽  
...  
Keyword(s):  
Dynamic Mechanical Analysis ◽  
Rice Husk ◽  
High Density Polyethylene ◽  
Mechanical Analysis ◽  
High Density ◽  
Dynamic Mechanical ◽  
Rice Husk Biochar ◽  
Polyethylene Composites

scholarly journals Dynamic Mechanical Compression Impulse of Lithium-Ion Pouch Cells

Energies ◽  
2020 ◽  
Vol 13 (8) ◽  
pp. 2105 ◽  
Author(s):  
Alon Ratner ◽  
Richard Beaumont ◽  
Iain Masters
Keyword(s):  
Mechanical Properties ◽  
Strain Rate ◽  
Strain Rate Sensitivity ◽  
Lithium Ion ◽  
Rate Sensitivity ◽  
Dynamic Mechanical Properties ◽  
Impact Testing ◽  
Significant Feature ◽  
Dynamic Mechanical ◽  
The Impact

Strain rate sensitivity has been widely recognized as a significant feature of the dynamic mechanical properties of lithium-ion cells, which are important for their accurate representation in automotive crash simulations. This research sought to improve the precision with which dynamic mechanical properties can be determined from drop tower impact testing through the use of a diaphragm to minimize transient shock loads and to constrain off-axis motion of the indenter, specialized impact absorbers to reduce noise, and observation of displacement with a high speed camera. Inert pouch cells showed strain rate sensitivity in an increased stiffness during impact tests that was consistent with the poromechanical interaction of the porous structure of the jellyroll with the liquid electrolyte. The impact behaviour of the inert pouch cells was similar to that of an Expanded Polypropylene foam (EPP), with the exception that the inert pouch cells did not show hysteretic recovery under the weight of the indenter. This suggests that the dynamic mechanical behaviour of the inert pouch cells is analogous to a highly damped foam.

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