【摘要】 在本文(1)中,我们应用Valanis提出的内时本构方程,研究了循环内压下薄壁圆管的塑性响应,得到了循环应力——塑性应变,循环内压——塑性应变的解析公式。由此描绘了碳钢圆管在循环内压下的稳定迟滞回线。这是疲劳寿命估计的依据。更多还原

【Abstract】 In this paper(1), we use the endochronic constitutive equations proposed by Valanis to study the plastic resposes of thin circular tube under cyclic internal pressure. The analytical formlae of cyclic stress-plastic strain and cyclic internal pressure-plastic strain are obtained. The steady hysteresis loops of stainless circular tube under cyclic internal pressure are described by using previous formulae, which is the basis of estimatng fatigue life.更多还原