The tensile and shear failure behavior dependence on chain length and temperature in amorphous polymers

Junhua Zhao, Timon Rabczuk

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The tensile and shear failure behavior dependence on chain length and temperature in amorphous polymers are scrutinized using molecular dynamics simulations. A wide range chain length of alkane is tested under tension and shear with various temperatures. We find that the broken rate (the broken bond number to all polymer chain number ratios) under tension and shear increases with increasing chain length and temperature. For a given chain length and temperature, the broken rates under shear are always higher than those under tension at a same large strain. For a given chain length, the tensile and shear stresses decrease with increasing temperature. We propose three typical fracture mechanisms to effectively elucidate the ductile fracture response based on the predominance of chain scission process.

Original languageEnglish
Title of host publication13th International Conference on Fracture 2013, ICF 2013
PublisherChinese Society of Theoretical and Applied Mechanics
Pages3975-3984
Number of pages10
Volume5
Publication statusPublished - 2013 Jan 1
Externally publishedYes
Event13th International Conference on Fracture 2013, ICF 2013 - Beijing, China
Duration: 2013 Jun 162013 Jun 21

Other

Other13th International Conference on Fracture 2013, ICF 2013
CountryChina
CityBeijing
Period13/6/1613/6/21

Fingerprint

Chain length
polymer
Polymers
temperature
Temperature
Ductile fracture
tensile stress
Tensile stress
alkane
Paraffins
shear stress
Molecular dynamics
Shear stress
Computer simulation
simulation
rate

Keywords

  • Chain length
  • Failure
  • Linear polymers
  • Molecular dynamics

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology

Cite this

Zhao, J., & Rabczuk, T. (2013). The tensile and shear failure behavior dependence on chain length and temperature in amorphous polymers. In 13th International Conference on Fracture 2013, ICF 2013 (Vol. 5, pp. 3975-3984). Chinese Society of Theoretical and Applied Mechanics.

The tensile and shear failure behavior dependence on chain length and temperature in amorphous polymers. / Zhao, Junhua; Rabczuk, Timon.

13th International Conference on Fracture 2013, ICF 2013. Vol. 5 Chinese Society of Theoretical and Applied Mechanics, 2013. p. 3975-3984.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Zhao, J & Rabczuk, T 2013, The tensile and shear failure behavior dependence on chain length and temperature in amorphous polymers. in 13th International Conference on Fracture 2013, ICF 2013. vol. 5, Chinese Society of Theoretical and Applied Mechanics, pp. 3975-3984, 13th International Conference on Fracture 2013, ICF 2013, Beijing, China, 13/6/16.
Zhao J, Rabczuk T. The tensile and shear failure behavior dependence on chain length and temperature in amorphous polymers. In 13th International Conference on Fracture 2013, ICF 2013. Vol. 5. Chinese Society of Theoretical and Applied Mechanics. 2013. p. 3975-3984
Zhao, Junhua ; Rabczuk, Timon. / The tensile and shear failure behavior dependence on chain length and temperature in amorphous polymers. 13th International Conference on Fracture 2013, ICF 2013. Vol. 5 Chinese Society of Theoretical and Applied Mechanics, 2013. pp. 3975-3984
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