Experimental and computational study of damage behavior of tungsten under high energy electron beam irradiation

Muyuan Li; Mathias Sommerer; Ewald Werner; Stefan Lampenscherf; Thorsten Steinkopff; Philipp Wolfrum; Jeong Ha You

doi:10.1016/j.engfracmech.2015.01.017

Experimental and computational study of damage behavior of tungsten under high energy electron beam irradiation

Muyuan Li, Mathias Sommerer, Ewald Werner, Stefan Lampenscherf, Thorsten Steinkopff, Philipp Wolfrum, Jeong Ha You

Chair of Materials Science

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

16 Scopus citations

Abstract

In this work, damage behavior of tungsten under high heat flux loads was investigated both numerically and experimentally assuming a single heat pulse with duration of 0.5. s. Finite element simulations revealed that the thermal steady state was reached within several milliseconds after the onset of a heat flux pulse and tensile residual stress was produced during cooling providing the driving force for crack growth. The crack initiation and growth simulations and J-integral calculation at crack tips delivered consistent results on cracking mechanism. Electron beam irradiation tests on tungsten samples were performed, which confirmed the predicted damage behavior.

Original language	English
Pages (from-to)	64-80
Number of pages	17
Journal	Engineering Fracture Mechanics
Volume	135
DOIs	https://doi.org/10.1016/j.engfracmech.2015.01.017
State	Published - 1 Feb 2015

Keywords

Electron beam irradiation tests
Extended finite element method
J-integral
Thermal shock

Access to Document

10.1016/j.engfracmech.2015.01.017

Cite this

@article{5fe14742168248589e91d8e27723b93a,

title = "Experimental and computational study of damage behavior of tungsten under high energy electron beam irradiation",

abstract = "In this work, damage behavior of tungsten under high heat flux loads was investigated both numerically and experimentally assuming a single heat pulse with duration of 0.5. s. Finite element simulations revealed that the thermal steady state was reached within several milliseconds after the onset of a heat flux pulse and tensile residual stress was produced during cooling providing the driving force for crack growth. The crack initiation and growth simulations and J-integral calculation at crack tips delivered consistent results on cracking mechanism. Electron beam irradiation tests on tungsten samples were performed, which confirmed the predicted damage behavior.",

keywords = "Electron beam irradiation tests, Extended finite element method, J-integral, Thermal shock",

author = "Muyuan Li and Mathias Sommerer and Ewald Werner and Stefan Lampenscherf and Thorsten Steinkopff and Philipp Wolfrum and You, {Jeong Ha}",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd.",

year = "2015",

month = feb,

day = "1",

doi = "10.1016/j.engfracmech.2015.01.017",

language = "English",

volume = "135",

pages = "64--80",

journal = "Engineering Fracture Mechanics",

issn = "0013-7944",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Experimental and computational study of damage behavior of tungsten under high energy electron beam irradiation

AU - Li, Muyuan

AU - Sommerer, Mathias

AU - Werner, Ewald

AU - Lampenscherf, Stefan

AU - Steinkopff, Thorsten

AU - Wolfrum, Philipp

AU - You, Jeong Ha

PY - 2015/2/1

Y1 - 2015/2/1

N2 - In this work, damage behavior of tungsten under high heat flux loads was investigated both numerically and experimentally assuming a single heat pulse with duration of 0.5. s. Finite element simulations revealed that the thermal steady state was reached within several milliseconds after the onset of a heat flux pulse and tensile residual stress was produced during cooling providing the driving force for crack growth. The crack initiation and growth simulations and J-integral calculation at crack tips delivered consistent results on cracking mechanism. Electron beam irradiation tests on tungsten samples were performed, which confirmed the predicted damage behavior.

AB - In this work, damage behavior of tungsten under high heat flux loads was investigated both numerically and experimentally assuming a single heat pulse with duration of 0.5. s. Finite element simulations revealed that the thermal steady state was reached within several milliseconds after the onset of a heat flux pulse and tensile residual stress was produced during cooling providing the driving force for crack growth. The crack initiation and growth simulations and J-integral calculation at crack tips delivered consistent results on cracking mechanism. Electron beam irradiation tests on tungsten samples were performed, which confirmed the predicted damage behavior.

KW - Electron beam irradiation tests

KW - Extended finite element method

KW - J-integral

KW - Thermal shock

UR - http://www.scopus.com/inward/record.url?scp=84922373625&partnerID=8YFLogxK

U2 - 10.1016/j.engfracmech.2015.01.017

DO - 10.1016/j.engfracmech.2015.01.017

M3 - Article

AN - SCOPUS:84922373625

SN - 0013-7944

VL - 135

SP - 64

EP - 80

JO - Engineering Fracture Mechanics

JF - Engineering Fracture Mechanics

ER -

Experimental and computational study of damage behavior of tungsten under high energy electron beam irradiation

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this