Volume 33 Issue 2
Apr.  2018
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XUE Gang, GONG Xuhui, SHEN Chuanzhao, LI Chong, GAO Zhenpeng. Relationship Analysis of Crack Arrest Toughness Kca and Conventional Mechanical Properties[J]. Development and Application of Materials, 2018, 33(2): 1-7. DOI: 10.19515/j.cnki.1003-1545.2018.02.001
Citation: XUE Gang, GONG Xuhui, SHEN Chuanzhao, LI Chong, GAO Zhenpeng. Relationship Analysis of Crack Arrest Toughness Kca and Conventional Mechanical Properties[J]. Development and Application of Materials, 2018, 33(2): 1-7. DOI: 10.19515/j.cnki.1003-1545.2018.02.001
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Relationship Analysis of Crack Arrest Toughness Kca and Conventional Mechanical Properties

  • 1. Luoyang Ship Material Research Institute, Luoyang 471023, China;

  • 2. Shanghai Institute of Standardization of China Classification Society, Shanghai 200135, China

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  • Received Date: October 18, 2017
  • Available Online: March 17, 2024
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    • Abstract

  • Relation between crack arrest toughness Kca at -10℃ and yield strength RP0.2, tensile strength Rm, impact toughness KV2 at -40℃, dynamic tearing energy DTE at -20℃ and -40℃ and side-section TNDT was analyzed by 28 troops of test data of high strength heavy plates.Results indicate that crack arrest toughness Kca at -10℃ is highly correlative with Rm at center section and side-section TNDT.Kca at -10℃ increases with the increasing of Rm at center section and the decreasing of side-section TNDT.The relationship formula of Rm at center section, side-section TNDT, plate thickness t and Kca at -10℃ is proposed based on the above results:Kca=13.358·Rm-90.530·TNDT-7.324·t1.5or Kca=13.427·Rm-74.845·TNDT-0.635·t2.

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