SHORT-TERM HIGH-TEMPERATURE THERMAL SHOCK FRACTURE OF 12 CrlMoVg STEEL AND FINITE ELEMENT ANALYSIS THEREOF

CHEN Nai-chao; ZHENG Bo; TIAN Guan-yuSchool of Energy Source and Environmental Engineering

doi:10.19666/j.rlfd.2009.02.011

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SHORT-TERM HIGH-TEMPERATURE THERMAL SHOCK FRACTURE OF 12 CrlMoVg STEEL AND FINITE ELEMENT ANALYSIS THEREOF

更新时间：2025-09-28

- SHORT-TERM HIGH-TEMPERATURE THERMAL SHOCK FRACTURE OF 12 CrlMoVg STEEL AND FINITE ELEMENT ANALYSIS THEREOF
- Thermal Power Generation Vol. 38, Issue 2, Pages: 41-44(2009)
- 作者机构：
  
  上海电力学院能源与环境工程学院
- 作者简介：
- 基金信息：
- DOI：10.19666/j.rlfd.2009.02.011
  CLC： TG142.15
- Published：2009
- 稿件说明：
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CHEN Nai-chao, ZHENG Bo, TIAN Guan-yuSchool of Energy Source and Environmental Engineering. SHORT-TERM HIGH-TEMPERATURE THERMAL SHOCK FRACTURE OF 12 CrlMoVg STEEL AND FINITE ELEMENT ANALYSIS THEREOF[J]. Thermal power generation, 2009, 38(2): 41-44.
DOI：

CHEN Nai-chao, ZHENG Bo, TIAN Guan-yuSchool of Energy Source and Environmental Engineering. SHORT-TERM HIGH-TEMPERATURE THERMAL SHOCK FRACTURE OF 12 CrlMoVg STEEL AND FINITE ELEMENT ANALYSIS THEREOF[J]. Thermal power generation, 2009, 38(2): 41-44. DOI： 10.19666/j.rlfd.2009.02.011.

摘要

采用有限元数值计算方法对实际运行中的短期高温冲击对12Cr1MoVg断裂韧性的影响进行分析。通过对实际温度冲击工况的获取

建立数值计算模型

实施综合负载

得到断裂应力强度因子和修正系数。同时

通过三点弯曲(试验COD法)验证

结果显示有限元分析所得到的结果比常温下试验所得到的结果更准确。

Abstract

By using finite element numerical calculation method

the influence of short-term high-temperature shock upon fracture toughness of 12 CrlMoVg steel has been analysed.Through obtaining real temperature shock behavior

the numerical calculation model has been established.Applying comprehensive load

the rupturing stress strength factor and modifying coefficient have been obtained.At the same time

through verification by using COD test method

it shows that the result obtained from finite element analysis is more accurate than that obtained from test under normal atmospheric temperature.

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