Finite element simulation of the biaxial stretching process and mechanical properties of TPU films

Yuankang Li, Guangkai Liao, Yuejun Liu, Yuhang Wen, Zhenyan Xie, Bin Li, Zejia Lu, Key Laboratory of Advanced Packaging Materials and Technology of Hunan Province, Hunan University of Technology

Journal of Elastomers & Plastics

Published online on March 18, 2026

Abstract

Journal of Elastomers & Plastics, Volume 58, Issue 5, Page 888-918, August 2026.
In this paper, we present experimental and finite element simulations for optimizing the biaxial stretching of thermoplastic polyurethane (TPU) films, demonstrating how key parameters (stretching temperature, stretch ratio, strain rate) determine their ...