Abstract
The purpose of the present research was to study systematically the shear deformation and fracture behaviour of a polycarbonate-acrylonitrile/ butadiene/styrene (PC-ABS) blend subjected to high shear strain at high strain rate, using a torsional, split Hopkinson bar. Thin walled tube specimens were deformed at room temperature under strain rates ranging from 102 to 5 × 103 s-1. The effects of strain rate on shear flow response, strain rate sensitivity, thermal activation volume, and shear modulus were evaluated. Damage initiation, propagation, and fracture mechanisms were studied by scanning electron microscopy. Correlations between dynamic flow response and observed fracture features are characterised and discussed in terms of loading conditions. The data indicate that the dynamic shear response of the PC-ABS blend is greatly affected by applied strain rate. An increase in shear stress and shear modulus with strain rate was observed. Fracture strains decrease with increased loading rate. Tearing and shear fracture are the major fracture mechanisms and depend quite strongly on the strain rate.
| Original language | English |
|---|---|
| Pages (from-to) | 484-489 |
| Number of pages | 6 |
| Journal | Plastics, Rubber and Composites Processing and Applications |
| Volume | 30 |
| Issue number | 10 |
| Publication status | Published - 2001 |
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All Science Journal Classification (ASJC) codes
- Engineering(all)
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Shear deformation and fracture behaviour of Polycarbonate-Acrylonitrile/Butadiene/Styrene blend at high strain rates. / Lee, Woei-Shyan; Lin, Chi Feng; Shen, Hung Che.
In: Plastics, Rubber and Composites Processing and Applications, Vol. 30, No. 10, 2001, p. 484-489.Research output: Contribution to journal › Article
TY - JOUR
T1 - Shear deformation and fracture behaviour of Polycarbonate-Acrylonitrile/Butadiene/Styrene blend at high strain rates
AU - Lee, Woei-Shyan
AU - Lin, Chi Feng
AU - Shen, Hung Che
PY - 2001
Y1 - 2001
N2 - The purpose of the present research was to study systematically the shear deformation and fracture behaviour of a polycarbonate-acrylonitrile/ butadiene/styrene (PC-ABS) blend subjected to high shear strain at high strain rate, using a torsional, split Hopkinson bar. Thin walled tube specimens were deformed at room temperature under strain rates ranging from 102 to 5 × 103 s-1. The effects of strain rate on shear flow response, strain rate sensitivity, thermal activation volume, and shear modulus were evaluated. Damage initiation, propagation, and fracture mechanisms were studied by scanning electron microscopy. Correlations between dynamic flow response and observed fracture features are characterised and discussed in terms of loading conditions. The data indicate that the dynamic shear response of the PC-ABS blend is greatly affected by applied strain rate. An increase in shear stress and shear modulus with strain rate was observed. Fracture strains decrease with increased loading rate. Tearing and shear fracture are the major fracture mechanisms and depend quite strongly on the strain rate.
AB - The purpose of the present research was to study systematically the shear deformation and fracture behaviour of a polycarbonate-acrylonitrile/ butadiene/styrene (PC-ABS) blend subjected to high shear strain at high strain rate, using a torsional, split Hopkinson bar. Thin walled tube specimens were deformed at room temperature under strain rates ranging from 102 to 5 × 103 s-1. The effects of strain rate on shear flow response, strain rate sensitivity, thermal activation volume, and shear modulus were evaluated. Damage initiation, propagation, and fracture mechanisms were studied by scanning electron microscopy. Correlations between dynamic flow response and observed fracture features are characterised and discussed in terms of loading conditions. The data indicate that the dynamic shear response of the PC-ABS blend is greatly affected by applied strain rate. An increase in shear stress and shear modulus with strain rate was observed. Fracture strains decrease with increased loading rate. Tearing and shear fracture are the major fracture mechanisms and depend quite strongly on the strain rate.
UR - http://www.scopus.com/inward/record.url?scp=0035710097&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035710097&partnerID=8YFLogxK
M3 - Article
VL - 30
SP - 484
EP - 489
JO - Plastics, Rubber and Composites
JF - Plastics, Rubber and Composites
SN - 1465-8011
IS - 10
ER -