Experimental Study of CVDA Design Curve

Li Zezhen and Zeng Guangxing(General Machinery Research Institute; Ministry of Machine Building)Peng Ruying(Chemical Machinery Research Institute; Ministry of Chemical Industry)

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Experimental Study of CVDA Design Curve

更新时间：2025-12-16

- Experimental Study of CVDA Design Curve
- CIESC Journal Issue 2, (1987)
- 作者机构：
  
  机械部通用机械研究所,化工部化工机械研究院
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：25 June 1987，
  
  Published：25 June 1987
- 稿件说明：
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Li Zezhen and Zeng Guangxing(General Machinery Research Institute, Ministry of Machine Building)Peng Ruying(Chemical Machinery Research Institute, Ministry of Chemical Industry). Experimental Study of CVDA Design Curve[J]. CIESC Journal, 1987, (2).
DOI：

Li Zezhen and Zeng Guangxing(General Machinery Research Institute, Ministry of Machine Building)Peng Ruying(Chemical Machinery Research Institute, Ministry of Chemical Industry). Experimental Study of CVDA Design Curve[J]. CIESC Journal, 1987, (2). DOI：

摘要

通过一系列宽板试验、带裂纹容器试验及工程容器典型事例分析

特别是高应变异形板试验、加筋宽板的有限元计算及大型容器接管裂纹测试研究与理论分析

作者发现无论是PD6493—80或JWES2805—83的设计曲线

在e/e_y=1附近

安全裕度均较小;特别是PD6493—80设计曲线的高应变区(e/e_y>1.5)的安全裕度却比低应变区要大得多;在同一设计曲线范围内

各段差异极大

显然是不合理的.本文提出了CVDA设计曲线为中国规范所采用.它的最后表达式为:经过理论分析及大量数据验证

充分说明了CVDA设计曲线的适用性、合理性和先进性.

Abstract

It is found that the coefficients oi the COD design curve for BSI PD6493-1980 and JWES2805-1983 are within the 0.51.5) have to becomparatively greater than those in the low strain zone. Needless to say

such a great variation values at different sections of one and the same curve must be looked upon as being most irrational. Hence a CVDA ( Chinese Pressure Vessel Defect Assessment) design curve

to be employed in the Chinese CVDA code

is given in this paper:

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