【英文标准名称】: Standard Practice for Estimating the Approximate Residual Circumferential Stress in Straight Thin-walled Tubing 【原文标准名称】: 估算直薄壁管的近似残余圆周应力的标准实施规范 【标准号】: ASTM E1928-2007 【标准状态】: 现行 【国别】: 【发布日期】: 2007 【实施或试行日期】: 【发布单位】: 美国材料与试验协会(US-ASTM)【起草单位】: E28.13【标准类型】: (Practice)【标准水平】: ()【中文主题词】: 金属导管;金属管道;金属管;质量要求;应力;管道【英文主题词】: residual stress measurement; tubing【摘要】: 1.1 A qualitative estimate of the residual circumferential stress in thin-walled tubing may be calculated from the change in outside diameter that occurs upon splitting a length of the tubing. This practice assumes a linear stress distribution through the tube wall thickness and will not provide an estimate of local stress distributions such as surface stresses. (Very high local residual stress gradients are common at the surface of metal tubing due to cold drawing, peening, grinding, etc.) The Hatfield and Thirkell formula, as later modified by Sachs and Espey, provides a simple method for calculating the approximate circumferential stress from the change in diameter of straight, thin-walled, metal tubing.1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.【中国标准分类号】: H22【国际标准分类号】: 23_040_10 ; 23_040_15【页数】: 3P.;A4【正文语种】: 作者: YFJ 时间: 2012-3-29 10:24:42