摘要
本文从分析初级FAD的安全系数出发,综合考虑有关国际规范及实际工程评定结果,以严格的线弹性断裂力学(LEFM)理论和塑性失稳理论为基础,依据CVDA—84,利用曲线拟合方法,提出适用于压力容器安全评定的半经验性的通用δ—FAD。据此,进一步提出了自成体系的压力容器缺陷评定的δ—FAD方法。
Following analyzing the safety factor of the preliminary FAD,and considering international concered codes and practical engineering assessment results, according to CVDA-84, and using curve fitting method, this paper presents a half-empirical general δ-FAD suitable for defect assessment of pressure vessels (PV) based on LEFM theory and plastic collapse theory. And then, it persents a self-consistent δ-FAD method for PV defect assessments. Finally,its advantages are discussed.
出处
《压力容器》
1995年第4期14-21,共8页
Pressure Vessel Technology
基金
机械部"八五"科技攻关课题2308006资助项目
