[직/편성물] Simulating Anisotropic Woven Fabric Deformation with a New Particle Model 출판일 : 2003.12.01 저자 : Xiaoqun Dai, YI Li, Xin Zhang 서지사항 : Textile Research Journal, Volume 73, No12(2003), 1091-1099페이지 등록일 : 2012.05.07 I 조회수 : 718 작성자 : admin |
This paper reports the development of a new particle model to simulate fabric mechan ical
behavior. A particle model of square meshes, which is close to the orthotropic structure of a
woven fabric, is used to represent the fabric. In addition to the separation, bending, and
shearing springs, a twist spring is introduced into the particle model to simulate the
tension/compression, bending, shearing, and twisting behavior of the fabric. The forces
and torques acting on the springs are derived according to fundamental elasticity
mechanical laws. Experiments of the heart-loop test involving various fabric behaviors are
conducted to validate the model. Comparisons between heart loops gener ated by the model
and corresponding actual experimental results verify that the model is able to simulate fabric
mechanical behavior with satisfactory accuracy. The anisotropy of woven fabric is shown
by different heart loops formed by specimens in different direc tions, and is illustrated by the
distributions of various inner stresses
|