Three-Component Model-Based Stress Relaxation Calculation Model for PVC Waterproofing Membranes

Chunchun Yu; Zulhazmee Bakri

doi:10.6919/ICJE.202411_10(11).0021

Authors

Chunchun Yu
Zulhazmee Bakri

DOI:

https://doi.org/10.6919/ICJE.202411_10(11).0021

Keywords:

Stress Relaxation; Three-Component Model; PVC Waterproofing Membrane; Kelvin Model; Stress.

Abstract

PVC waterproofing membranes are viscoelastic materials, and a fixed strain is imparted to them by applying initial tension. The stress relaxation characteristics of PVC waterproofing membranes were investigated. The Kelvin model and the three-component model composed of springs in series can express the transient response, creep, and relaxation of viscoelastic solids. Based on the analysis of the experimental data of stress relaxation, the parameters of the three-component model were determined, and the stress relaxation calculation formula of PVC waterproofing membranes was established. This calculation formula can better satisfy the later stage of stress relaxation, but it is not so accurate for the early stage, and there are still shortcomings.

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References

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