• 综合
  • 标题
  • 关键词
  • 摘要
  • 学者
  • 期刊-刊名
  • 期刊-ISSN
  • 会议名称
搜索

作者:

Peng, Lei (Peng, Lei.) | Yang, Lu (Yang, Lu.) | Wang, Meng (Wang, Meng.) | Han, Yawei (Han, Yawei.) | Yan, Qiushi (Yan, Qiushi.)

收录:

Scopus SCIE

摘要:

The goal of this study is to investigate the dynamic mechanical properties of low yield (LY) point steels (LY100, LY160, and LY225) under high strain rates and elevated temperatures. The separate Hopkinson pressure bar system was used to conduct dynamic compression tests on LY steels at temperatures ranging from 25 degrees C to 800 degrees C and strain rates ranging from 1,000 s(-1) to 5,000 s(-1). The quasi-static compression tests (0.001 s(-1)) were conducted at the same temperatures. The stress-strain relationship of the presented three materials under various temperatures and strain rates was acquired. The test results demonstrated that LY100, LY160, and LY225 steels have an obvious temperature-softening effect. The three materials show low strain rate sensitivity under the strain rate is not more than 3,000 s(-1). For a given strain rate, the flow stresses of LY100 and LY160 steel are consistent at 400 degrees C and 600 degrees C, respectively, and both materials exhibit dynamic strain aging. Besides, LY225 steel exhibits dynamic strain aging when the temperature is above 400 degrees C. According to the test results, a modified Johnson-Cook model of the LY point steels was established, which can reflect the material properties well. The results of this study may provide a basis for studying LY steels' dynamic mechanical properties. (c) 2023 American Society of Civil Engineers.

关键词:

Dynamic strain aging Johnson-Cook model Separate Hopkinson pressure bar Low yield (LY) point steel High-temperature effect

作者机构:

  • [ 1 ] [Peng, Lei]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 2 ] [Yang, Lu]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 3 ] [Han, Yawei]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 4 ] [Yan, Qiushi]Beijing Univ Technol, Key Lab Urban Secur & Disaster Engn, Minist Educ, Beijing 100124, Peoples R China
  • [ 5 ] [Wang, Meng]Beijing Jiaotong Univ, Sch Civil Engn, Beijing 100044, Peoples R China

通讯作者信息:

查看成果更多字段

相关关键词:

相关文章:

来源 :

JOURNAL OF MATERIALS IN CIVIL ENGINEERING

ISSN: 0899-1561

年份: 2023

期: 5

卷: 35

3 . 2 0 0

JCR@2022

ESI学科: ENGINEERING;

ESI高被引阀值:19

被引次数:

WoS核心集被引频次:

SCOPUS被引频次: 3

ESI高被引论文在榜: 0 展开所有

万方被引频次:

中文被引频次:

近30日浏览量: 0

归属院系:

在线人数/总访问数:403/4876880
地址:北京工业大学图书馆(北京市朝阳区平乐园100号 邮编:100124) 联系我们:010-67392185
版权所有:北京工业大学图书馆 站点建设与维护:北京爱琴海乐之技术有限公司