Investigation on fracture toughness of polytetrafluoroethylene with impact essential work of fracture method

2021 ◽  
pp. 096739112110033
Author(s):  
Mustafa Armağan ◽  
A Armağan Arıcı
Keyword(s):  
Fracture Toughness ◽  
Charpy Impact ◽  
Strength Properties ◽  
Essential Work ◽  
Carbon Filler ◽  
Essential Work Of Fracture ◽  
Impact Device ◽  
Wide Range ◽  
And Behavior ◽  
Work Of Fracture

Polytetrafluoroethylene (PTFE) polymer has a wide range of applications in various industries. Therefore, for designers it is essential to know the strength properties of the material under dynamic loads. In this study, pure-PTFE, bronze and carbon filled-PTFE are tested under dynamic load. In addition, pure and carbon filled specimens were used to determine the temperature effect of PTFE. All tests were carried out in the Charpy impact device according to impact essential work of fracture method. At 23°C, pure-PTFE showed the highest impact strengths, bronze filled-PTFE and carbon filled-PTFE showed lower respectively and it has been found that the carbon filler increases the fracture toughness approximately two times at high temperature (150°C). On fracture surfaces phase transitions effects of PTFE and behavior of fillers used were investigated with Scanning Electron Microscope.

Effect of strain rate on the fracture toughness of some ductile polymers using the essential work of fracture (EWF) approach

2000 ◽  
Vol 40 (12) ◽  
pp. 2558-2568 ◽  
Author(s):  
Emma C. Y. Ching ◽  
Wendy K. Y. Poon ◽  
Robert K. Y. Li ◽  
Yiu-Wing Mai
Keyword(s):  
Fracture Toughness ◽  
Strain Rate ◽  
Essential Work ◽  
Essential Work Of Fracture ◽  
Work Of Fracture

Fracture Toughness of Polyamide 6/ Maleated Styrene-Ethylene-Butylene-Styrene/Silicon Carbide Nanocomposites

2011 ◽  
Vol 275 ◽  
pp. 229-233 ◽  
Author(s):  
Cheng Zhu Liao ◽  
Sie Chin Tjong
Keyword(s):  
Fracture Toughness ◽  
Silicon Carbide ◽  
Tensile Strength ◽  
Impact Strength ◽  
Tensile Ductility ◽  
Polyamide 6 ◽  
Essential Work ◽  
Melt Blending ◽  
Essential Work Of Fracture ◽  
Work Of Fracture

Polyamide 6 (PA6) based nanocomposites toughened with 20 wt% maleated styrene-ethylene-butylene-stryrene (mSEBS) reinforced with 1-7 wt% silicon carbide nanoparticles (SiCp) were fabricated via melt blending followed by injection molding. Tensile results showed that SiCp additions improve the Young’s modulus and tensile strength of PA6/mSEBS blends but decrease their tensile ductility and impact strength. EWF test revealed that the SiCp additions reduce both the specific essential work of fracture and specific non-essential plastic work of fracture. Thus SiCp additions are detrimental to the fracture toughness of PA6/mSEBS blend.

Fracture Toughness Characterization of High-Density Polyethylene Using Essential Work of Fracture Concept

2020 ◽  
Vol 20 (1) ◽  
pp. 315-322
Author(s):  
Tarek Houari ◽  
Mohamed Benguediab ◽  
Azzeddine Belaziz ◽  
Mohamed Belhamiani ◽  
Abdelkrim Aid
Keyword(s):  
Fracture Toughness ◽  
High Density Polyethylene ◽  
High Density ◽  
Essential Work ◽  
Essential Work Of Fracture ◽  
Work Of Fracture

Evaluation of the fracture behaviors of fluoropolymer binders with the essential work of fracture (EWF)

RSC Advances ◽  
2015 ◽  
Vol 5 (122) ◽  
pp. 100408-100417 ◽  
Author(s):  
Guansong He ◽  
Jiahui Liu ◽  
Congmei Lin ◽  
Shijun Liu
Keyword(s):  
Fracture Toughness ◽  
Polymer Binder ◽  
Essential Work ◽  
Essential Work Of Fracture ◽  
Final Fracture ◽  
Fracture Behaviors ◽  
And Behaviors ◽  
Work Of Fracture

The beforehand evaluation of the fracture toughness and behaviors of the polymer binder through EWF can give a reliable feedback to the final fracture toughness of PBX.

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