Evaluation and characterization of plastics-made sheet type components under impact

M. Nizar Machmud, Masaki Omiya, Hirotsugu Inoue, Kikuo Kishimoto

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


Experimental works using a drop weight impact test method have been performed on a circular sheet specimen to evaluate and to characterize the impact resistance of the sheet-type plastic components designed for automotive wheel covers. Evaluation has been conducted for a set of engineering plastics: polycarbonate (PC), acrylonitrile-butadiene-styrene (ABS) and their blend (PC/ABS). The testing results showed that the PC/ABS blend specimens failed in brittle manner under higher impact speeds with very few of whitening zones. Secondary cracks captured perpendicular to fracture surface were also found in the mid-plane of the scattered PC/ABS blend specimens. Investigation is then focused on this blend and the testing results describe that impact resistance of the specimen made of this alternative material is determined by ABS not by PC. Combination of structures between PC and ABS through the thickness in the core due to their immiscibility was observed by scanning electron microscope (SEM) on the etched PC/ABS specimen. This latter result well correlates the results obtained from the testing. It therefore reveals that immiscibility between PC and ABS in the blend plays an important role in determining the impact resistance of the components. This paper also presents simulative results of the test obtained from a FEA work by introducing a 3D- layered finite element (FE) model of the PC/ABS specimen to take into account effect of a layer in the core on the behavior of the blend.

Original languageEnglish
Title of host publicationAdvances in Fracture and Materials Behavior - Selected, peer reviewed papers of the Seventh International Conference on Fracture and Strength of Solids (FEOFS2007)
PublisherTrans Tech Publications
Number of pages6
ISBN (Print)0878493999, 9780878493999
Publication statusPublished - 2008
Event7th International Conference on Fracture and Strength of Solids, FEOFS 2007 - Urumqi, China
Duration: 2007 Aug 272007 Aug 29

Publication series

NameAdvanced Materials Research
Volume33-37 PART 1
ISSN (Print)1022-6680


Other7th International Conference on Fracture and Strength of Solids, FEOFS 2007


  • ABS
  • Impact
  • Polycarbonate
  • Sheet type component

ASJC Scopus subject areas

  • Engineering(all)


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