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本文论述了软弱夹层充填物的流变试验方法和流变变形特性。根据流变过程曲线分析了起始流变与等速流变之间的关系,并指出软弱夹层的临界等速流变变形一定存在。在此基础上提出利用U_(if)-τ_(ij)曲线的拐点,确定产生临界等速流变剪应力的方法。
This paper discusses rheological test methods and rheological deformation characteristics of soft sandwich fillings. According to the rheological curve, the relationship between the initial rheology and constant velocity rheology is analyzed, and it is pointed out that the critical isokinetic rheological deformation of the weak interlayer must exist. Based on this, the method of using the inflection point of the U_(if)-τ_(ij) curve is proposed to determine the critical isokinetic rheological shear stress.