复杂应力状态下船用低碳钢断裂应变的"断崖现象"

Pu Zhang; Ming Yan Zhao; Ying Li; Wei Zhang; Xian Ben Ren; Dai Ning Fang

doi:10.3969/j.issn.1007-7294.2020.02.008

复杂应力状态下船用低碳钢断裂应变的"断崖现象"

Translated title of the contribution: Failure strain sharp-down of marine mild steel under complex stress states

Pu Zhang
, Ming Yan Zhao
, Ying Li^*
, Wei Zhang
, Xian Ben Ren
, Dai Ning Fang

^*Corresponding author for this work

Institute of Advanced Structure Technology

Wuhan University of Technology
Jiangnan Shipbuilding Co. Ltd.
Naval Academy
Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

The basic theory of stress triaxiality and Lode angle was discussed. A series of tests including up- setting tests, shear tests and tensile tests on mild steel providing clues to fracture ductility for a wide range of stress triaxiality were carried out. There was a sharp decrease in low stress triaxiality region, which was studied and explained based on stress triaxiality and Lode angle. New fracture criterion parameters were given through genetic algorithm, and the accuracy of parameters was identified by comparing different fracture criterions with experimental data.

Translated title of the contribution	Failure strain sharp-down of marine mild steel under complex stress states
Original language	Chinese (Traditional)
Pages (from-to)	191-196
Number of pages	6
Journal	Chuan Bo Li Xue/Journal of Ship Mechanics
Volume	24
Issue number	2
DOIs	https://doi.org/10.3969/j.issn.1007-7294.2020.02.008
Publication status	Published - 1 Feb 2020

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10.3969/j.issn.1007-7294.2020.02.008

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title = "复杂应力状态下船用低碳钢断裂应变的{"}断崖现象{"}",

abstract = "The basic theory of stress triaxiality and Lode angle was discussed. A series of tests including up- setting tests, shear tests and tensile tests on mild steel providing clues to fracture ductility for a wide range of stress triaxiality were carried out. There was a sharp decrease in low stress triaxiality region, which was studied and explained based on stress triaxiality and Lode angle. New fracture criterion parameters were given through genetic algorithm, and the accuracy of parameters was identified by comparing different fracture criterions with experimental data.",

keywords = "Blast resistance, Complex stress state, Fracture criterion, Lode angle, Mild steel, Stress triaxiality",

author = "Pu Zhang and Zhao, \{Ming Yan\} and Ying Li and Wei Zhang and Ren, \{Xian Ben\} and Fang, \{Dai Ning\}",

year = "2020",

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doi = "10.3969/j.issn.1007-7294.2020.02.008",

language = "繁体中文",

volume = "24",

pages = "191--196",

journal = "Chuan Bo Li Xue/Journal of Ship Mechanics",

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T1 - 复杂应力状态下船用低碳钢断裂应变的"断崖现象"

AU - Zhang, Pu

AU - Zhao, Ming Yan

AU - Li, Ying

AU - Zhang, Wei

AU - Ren, Xian Ben

AU - Fang, Dai Ning

PY - 2020/2/1

Y1 - 2020/2/1

N2 - The basic theory of stress triaxiality and Lode angle was discussed. A series of tests including up- setting tests, shear tests and tensile tests on mild steel providing clues to fracture ductility for a wide range of stress triaxiality were carried out. There was a sharp decrease in low stress triaxiality region, which was studied and explained based on stress triaxiality and Lode angle. New fracture criterion parameters were given through genetic algorithm, and the accuracy of parameters was identified by comparing different fracture criterions with experimental data.

AB - The basic theory of stress triaxiality and Lode angle was discussed. A series of tests including up- setting tests, shear tests and tensile tests on mild steel providing clues to fracture ductility for a wide range of stress triaxiality were carried out. There was a sharp decrease in low stress triaxiality region, which was studied and explained based on stress triaxiality and Lode angle. New fracture criterion parameters were given through genetic algorithm, and the accuracy of parameters was identified by comparing different fracture criterions with experimental data.

KW - Blast resistance

KW - Complex stress state

KW - Fracture criterion

KW - Lode angle

KW - Mild steel

KW - Stress triaxiality

UR - https://www.scopus.com/pages/publications/85081688018

U2 - 10.3969/j.issn.1007-7294.2020.02.008

DO - 10.3969/j.issn.1007-7294.2020.02.008

M3 - 文章

AN - SCOPUS:85081688018

SN - 1007-7294

VL - 24

SP - 191

EP - 196

JO - Chuan Bo Li Xue/Journal of Ship Mechanics

JF - Chuan Bo Li Xue/Journal of Ship Mechanics

IS - 2

ER -

复杂应力状态下船用低碳钢断裂应变的"断崖现象"

Abstract

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