TY - GEN
T1 - Improvement in orientation measurement for short and long fiber injection modled composites
AU - Vélez-Garcia, G. M.
AU - Mazahir, S.
AU - Hofmann, J.
AU - Wapperom, P.
AU - Baird, D.
AU - Zink-Sharp, A.
AU - Kunc, V.
PY - 2010
Y1 - 2010
N2 - Short and long fiber reinforced thermoplastics are a feasible alternative to develop lightweight materials for semi-structural and structural applications, respectively. These composites present a layered structure showing a complex tridimensional structure along the molding, created during the forming stage. The details of short fiber orientation in a center-gated disk with diameter of 1.38 mm were obtained in several regions including the gate and advancing front. Several modifications were introduced in the method of ellipses to obtain unambiguous orientation of 30 % short glass-fiber PBT. The unambiguous Arθ component was successfully obtained with the modified method. The results also showed an asymmetric distribution of fiber orientation that gradually washout as the flow progress. In addition, the initial orientation measured at the gate presented a fiber distribution different from the random orientation that is assumed in literature for a center-gated disk. Additionally, the initial results of this modified method to assess the complex structure of a 30 % long glass-fiber PP end-gated plaque are shown.
AB - Short and long fiber reinforced thermoplastics are a feasible alternative to develop lightweight materials for semi-structural and structural applications, respectively. These composites present a layered structure showing a complex tridimensional structure along the molding, created during the forming stage. The details of short fiber orientation in a center-gated disk with diameter of 1.38 mm were obtained in several regions including the gate and advancing front. Several modifications were introduced in the method of ellipses to obtain unambiguous orientation of 30 % short glass-fiber PBT. The unambiguous Arθ component was successfully obtained with the modified method. The results also showed an asymmetric distribution of fiber orientation that gradually washout as the flow progress. In addition, the initial orientation measured at the gate presented a fiber distribution different from the random orientation that is assumed in literature for a center-gated disk. Additionally, the initial results of this modified method to assess the complex structure of a 30 % long glass-fiber PP end-gated plaque are shown.
UR - http://www.scopus.com/inward/record.url?scp=80052433163&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:80052433163
SN - 9781618390240
T3 - Society of Plastics Engineers - 10th Annual Automotive Composites Conference and Exhibition 2010, ACCE 2010
SP - 799
EP - 809
BT - Society of Plastics Engineers - 10th Annual Automotive Composites Conference and Exhibition 2010, ACCE 2010
T2 - 10th Annual Automotive Composites Conference and Exhibition 2010, ACCE 2010
Y2 - 15 September 2010 through 16 September 2010
ER -