Title of article :
Large tensile deformation behavior of PC/ABS alloy
Author/Authors :
Fang، نويسنده , , Qin-Zhi and Wang، نويسنده , , T.J. and Li، نويسنده , , Hui-Min، نويسنده ,
Issue Information :
دوهفته نامه با شماره پیاپی سال 2006
Pages :
8
From page :
5174
To page :
5181
Abstract :
Large tensile deformation behavior of the alloy of polycarbonate (PC) and acrylonitrile butadiene styrene (ABS) are experimentally investigated in this paper. Based on the adaptations of digital image correlation (DIC) method suitable for large inhomogeneous deformation in three dimensions, a new displacement measurement system is developed. Using the new displacement measurement system, we obtain the displacement fields in PC/ABS alloy. Such that variations of the strain and strain rate during tension process, and the true stress strain curves for PC/ABS alloy are derived. Also, volume variation of PC/ABS alloy is also discussed. Moreover, in situ scanning electron microscopic (SEM) observation is carried out to study the micro-mechanism of large inhomogeneous deformation of PC/ABS alloy. It is seen that contraction rate of specimen thickness is bigger than that of the width of specimen during plastic deformation. The axial tensile strain rate is much higher in the necking region. It should be noted that the local volume increases with the increase of axial true strain to a certain value, after that it decreases. Initiation and growth of crazes are the main mechanism of tensile deformation of PC/ABS alloy after yielding.
Keywords :
digital image correlation , Large strain measurement , thermoplastics
Journal title :
Polymer
Serial Year :
2006
Journal title :
Polymer
Record number :
1726924
Link To Document :
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