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一、前言常规三轴试验测得的应力应变曲线大体可分为三种类型,其一为加工软化型的,如图1中α,应力先随应变增加而增加,达到
I. INTRODUCTION The stress-strain curves measured by conventional triaxial tests can be broadly classified into three types. One of them is a process-softening type. As shown in Figure 1, the stress increases first with increasing strain, reaching