Analysis of Creep Behavior of Polypropylene Fibers
Time and stress-dependent viscoelastic properties of polypropylene fibers are determined by means of a series of creep tests and data analysis technique. Relaxation tests are carried out to verify and update the suggested model. The tests are performed for single polypropylene fibers that form a thermally bonded low-density nonwoven. The obtained properties are implemented into the finite element analysis software MSC. Marc - Mentat. Tensile tests and simulations are performed in order to demonstrate suitability of the developed creep model. The obtained results are discussed and further recommendations are given.
R. L. Burguete, M. Lucas, E. A. Patterson, S. Quinn
B. Sabuncuoglu et al., "Analysis of Creep Behavior of Polypropylene Fibers", Applied Mechanics and Materials, Vol. 70, pp. 410-415, 2011