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Evaluation of dynamic density by simultaneous measurement of ultrasonic velocity and elastic modulus under oscillatory deformation

✍ Scribed by K. Nitta; A. Tanaka

Publisher
Society for Plastic Engineers
Year
1989
Tongue
English
Weight
483 KB
Volume
29
Category
Article
ISSN
0032-3888

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πŸ“œ SIMILAR VOLUMES

Ultrasonic velocity and attenuation of p
Ultrasonic velocity and attenuation of polymeric solids under oscillatory deformation. II: High density and linear low density polyethylene and their blends
✍ Akira Tanaka; Koh-Hei Nitta πŸ“‚ Article πŸ“… 1991 πŸ› Society for Plastic Engineers 🌐 English βš– 620 KB

## Abstract In order to understand the viscoelastic non‐linearities in polyethylene, dynamic ultrasonic properties of high density polyethylene (HDPE), linear low density polyethylene (LLDPE) and their blends were studied. In the case of HDPE and HDPE‐rich films, for which the nonlinearity is high,

Ultrasonic velocity and attenuation of p
Ultrasonic velocity and attenuation of polymeric solids under oscillatory deformation. III: Drawn films of high density and linear low density polyethylene and their blends
✍ Koh-Hei Nitta; Akira Tanaka πŸ“‚ Article πŸ“… 1991 πŸ› Society for Plastic Engineers 🌐 English βš– 379 KB

## Abstract Viscoelastic nonlinearity was examined on uniaxially drawn films of high density and linear low density polyethylenes and their blends using dynamic ultrasonic measurements. It was found that nonlinearity due to plastic deformations, such as slippage and dislocations, occurs in the fibr