Toughness assessment of thermoplastic nanocomposites by the essential work of fracture (EWF) approach

Vincent Mandla Khumalo, J. Karger-Kocsis, Caroline Khoathane

Research output: Contribution to conferencePaper

Abstract

The essential work of fracture (EWF) approach is widely used to determine the plane stress fracture toughness of highly ductile polymers and related systems. Though the EWF method is dominantly used for mode-I type loading, it has been successfully adopted for mode-II and mode-III type deformations, too. Moreover, attempts were also made to deduce plane strain toughness values from EWF tests. According to the EWF, the total work of fracture (Wf) can be partitioned into two components: (i) the EWF (We) consumed in the inner fracture process zone to create new surface and (ii) the nonessential (or plastic) work (Wp) performed in the outer 'plastic' deformation zone. Nanofiller concentration and surface treatment on the morphology and viscoelastic behaviour of polypropylene (PP)/boehmite alumina (BA) nanocomposites was investigated.

Original languageEnglish
Pages614-615
Number of pages2
Publication statusPublished - Jan 1 2017
Event14th International Conference on Fracture, ICF 2017 - Rhodes, Greece
Duration: Jun 18 2017Jun 20 2017

Conference

Conference14th International Conference on Fracture, ICF 2017
CountryGreece
CityRhodes
Period6/18/176/20/17

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction

Fingerprint Dive into the research topics of 'Toughness assessment of thermoplastic nanocomposites by the essential work of fracture (EWF) approach'. Together they form a unique fingerprint.

  • Cite this

    Khumalo, V. M., Karger-Kocsis, J., & Khoathane, C. (2017). Toughness assessment of thermoplastic nanocomposites by the essential work of fracture (EWF) approach. 614-615. Paper presented at 14th International Conference on Fracture, ICF 2017, Rhodes, Greece.