采用毛细管流变仪等仪器研究了一类聚乙烯熔体的挤出畸变与熔体非线性粘弹性的关系。
The relationship between the melt fracture and the non-linear viscoelasticity for PE-HD, POE, and PE-LLD was studied using a capillary rheometer.
本文利用线性粘弹性的对应原理得出了关于粘弹性岩石中井筒的井壁压力及位移的理论解。
An exact solution of pressure and displacement of a mine shaft situated in viscoelastic rock is obtained using the correspondence principle of the linear viscoelasticity theory.
首先找到非线性粘弹性与非线性弹性本构关系之间的对应，然后导出了两个弹性回复对应原理。
The correspondence between the nonlinear viscoelastic and the nonlinear elastic constitutive relations is found first, and then two elasticity recovery correspondence principles are deduced.
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