Modeling the non-elastic stretch deformation of cloth based on creep analysis

Abstract

This work proposes a method to model the non-elastic components in the fabric stretch deformation in the context of physically based fabric simulator. This paper finds that the above problem can be made tractable if we decompose the stretch deformation into the immediate elastic, viscoelastic, and plastic components. A non-trivial job is the decomposition of the deformation itself. For the purpose of the simulator development, the decomposition must be possible at any stage of deformation and any occurrence of loading and unloading. Based on the observations of various constant force creep measurements, this paper makes an assumption that, within a particular fabric, the viscoelastic and plastic components are proportional to each other and their ratio is invariant over time. Experimental results produced with the proposed method match with general expectations, and show that the method can represent the non-elastic stretch deformation for arbitrary time-varying force.

Designing Personalized Garments with Body Movement

“…Cloth elasticity can be simulated based on fast and simple spring models [CK05, LBOK13], on continuum models [BW98, NSO12], which can work well for woven cloth, or the individual yarns [CLMMO14, KJM10], which is very useful in modelling intricate knit patterns or a snag of a single thread. Research has also covered aspects such as collision handling [BMF05, TWL*18], measurement of cloth elasticity [WOR11, MBT*12], inextensibility [GHF*07] or plastic deformations [JLK*16]. Though our framework is relatively independent of the particular choice of the simulation method, we do substantially rely on cloth simulation and base our method on the model by Baraff and Witkin [BW98].…”

3D Custom Fit Garment Design with Body Movement

“…Cloth elasticity can be simulated based on fast and simple spring models [Choi and Ko 2005;Liu et al 2013], on continuum models [Baraff and Witkin 1998;Narain et al 2012], which can work well for woven cloth, or the individual yarns [Cirio et al 2014;Kaldor et al 2010], which is very useful in modeling intricate knit patterns or a snag of a single thread. Research has also covered aspects such as collision handling [Bridson et al 2005;Tang et al 2018], measurement of cloth elasticity [Miguel et al 2012;Wang et al 2011], inextensibility [Goldenthal et al 2007] or plastic deformations [Jung et al 2016]. Though our framework is relatively independent of the particular choice of the simulation method, we do substantially rely on cloth simulation and base our method on the model by Baraff and Witkin [1998].…”

Theoretical and experimental investigations on the effects of friction, bending rigidity, extensibility, and Poisson's ratio on fabric tensile properties

“…Thus, the equilibrium equations of moment and force are established as equations (25) to (27), according to Figure 6 and Assumption 3 where x AS is the horizontal distance between points A and S, y AS is the vertical distance between points A and S, and M 1 is the bending moment at point A. Combining equations (21) to (27), we can obtain expressions about several angle parameters ! 1 , 0 , 1 , as…”

“…Kawabata 19,20 proposed a simplified stereo model to analyze biaxial and uniaxial deformation. Jung 21 developed an inelastic stretch model based on Kelvin's equation that can reproduce the stretch deformation. However, most of these studies lack the application and experimental verification of theoretical models in practice; in this study, models will be established on detection principles and be verified by subjective and experimental methods.…”