𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A Model for the Elastoplastic Behavior of Isotactic Poly(propylene) Below the Yield Point

✍ Scribed by Aleksey D. Drozdov; Jesper deC. Christiansen

Publisher
John Wiley and Sons
Year
2003
Tongue
English
Weight
163 KB
Volume
288
Category
Article
ISSN
1438-7492

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

Observations are reported on isotactic poly(propylene) (iPP) in a series of tensile loading‐unloading tests with a constant strain rate at room temperature. A constitutive model is developed for the elastoplastic behavior of a semicrystalline polymer at isothermal uniaxial deformations with small strains. The stress‐strain relations are determined by 5 adjustable parameters which are found by fitting the experimental data.

The stress σ (MPa) versus strain ε in a tensile loading‐unloading test with the maximum strain ε~max~ = 0.09. Circles: experimental data. Solid line: results of numerical simulation.

magnified imageThe stress σ (MPa) versus strain ε in a tensile loading‐unloading test with the maximum strain ε~max~ = 0.09. Circles: experimental data. Solid line: results of numerical simulation.

📜 SIMILAR VOLUMES

A generalized model for the yield behavi
A generalized model for the yield behavior of epoxy networks in multiaxial stress states
✍ Alan J. Lesser; Robert S. Kody 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 198 KB 👁 3 views

Several yield criteria for glassy polymers are reviewed, and their limitations in predicting the effects of stress state, strain rate, test temperature, and molecular architecture are noted. These criteria are then generalized, so that a working model can be developed for predicting the yield respon