Study on crease recovery behavior of wool polyester fabrics using viscoelasticity theory 基于粘弹性理论研究毛涤混纺织物折皱回复行为
In this paper , based on the viscoelasticity theory and the dynamics theory , the finite element method ( fem ) is used to the structural integrality analysis of the grain in rocket engine of the base - bleed and rocket compound extended range projectile in chamber 本文基于粘弹性理论和动力学理论,运用ansys对某型号底排?火箭复合增程弹助推火箭发动机药柱在膛内的结构完整性进行了系统的分析。
At present , many important development on the studies of viscoelastic theory have been made by the efforts of scholars home and abroad , linear viscoelasticity theory has sufficiently developed , while nonlinear viscoelastic theory is still under developed by the reason of difficulties in experiment and mathematics 目前,国内外学者在粘弹性理论研究领域取得了许多重要的研究进展,线粘弹性理论已发展得较为完善,非线性粘弹性理论由于实验和数学上存在的困难尚处于不断的发展和完善之中。