Evaluation of stress intensity factors under thermal effect employing domain integral method and ordinary state based peridynamic theory

Hanlin Wang; Satoyuki Tanaka; Selda Oterkus; Erkan Oterkus

doi:10.1007/s00161-021-01033-z

Evaluation of stress intensity factors under thermal effect employing domain integral method and ordinary state based peridynamic theory

Hanlin Wang, Satoyuki Tanaka, Selda Oterkus, Erkan Oterkus

Naval Architecture, Ocean And Marine Engineering

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7 Citations (Scopus)

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Abstract

In this article, several thermoelastic benchmark cases are studied within the framework of ordinary state based peridynamic theory (OSPD). By using OSPD, the limitations of geometrical discontinuity in fracture analysis can be overcome. Meanwhile, double nodes can also be avoided during crack definition. A domain integral method with thermal effect is applied in calculating the thermal stress intensity factors (TSIFs). Meanwhile, peridynamic differential operators (PDDO) are utilized to rewrite the spatial derivatives in the domain integral. Numerical investigations of TSIFs in the single and mixed-mode crack scenarios are provided respectively, and verified by the reference solutions. Good agreements between OSPD and the reference solutions show high performance and capability of the proposed method in thermoelastic fracture analysis.

Original language	English
Pages (from-to)	1021-1040
Number of pages	26
Journal	Continuum Mechanics and Thermodynamics
Volume	35
Early online date	22 Jun 2021
DOIs	https://doi.org/10.1007/s00161-021-01033-z
Publication status	Published - May 2023

Keywords

ordinary state peridynamics
peridynamic differential operator
interaction integral
thermal stress intensity factor

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10.1007/s00161-021-01033-z

Wang-etal-CMT-2021-Evaluation-of-stress-intensity-factors-under-thermal-effectAccepted author manuscript, 1.47 MB

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title = "Evaluation of stress intensity factors under thermal effect employing domain integral method and ordinary state based peridynamic theory",

abstract = "In this article, several thermoelastic benchmark cases are studied within the framework of ordinary state based peridynamic theory (OSPD). By using OSPD, the limitations of geometrical discontinuity in fracture analysis can be overcome. Meanwhile, double nodes can also be avoided during crack definition. A domain integral method with thermal effect is applied in calculating the thermal stress intensity factors (TSIFs). Meanwhile, peridynamic differential operators (PDDO) are utilized to rewrite the spatial derivatives in the domain integral. Numerical investigations of TSIFs in the single and mixed-mode crack scenarios are provided respectively, and verified by the reference solutions. Good agreements between OSPD and the reference solutions show high performance and capability of the proposed method in thermoelastic fracture analysis.",

keywords = "ordinary state peridynamics, peridynamic differential operator, interaction integral, thermal stress intensity factor",

author = "Hanlin Wang and Satoyuki Tanaka and Selda Oterkus and Erkan Oterkus",

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doi = "10.1007/s00161-021-01033-z",

language = "English",

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TY - JOUR

T1 - Evaluation of stress intensity factors under thermal effect employing domain integral method and ordinary state based peridynamic theory

AU - Wang, Hanlin

AU - Tanaka, Satoyuki

AU - Oterkus, Selda

AU - Oterkus, Erkan

PY - 2023/5

Y1 - 2023/5

N2 - In this article, several thermoelastic benchmark cases are studied within the framework of ordinary state based peridynamic theory (OSPD). By using OSPD, the limitations of geometrical discontinuity in fracture analysis can be overcome. Meanwhile, double nodes can also be avoided during crack definition. A domain integral method with thermal effect is applied in calculating the thermal stress intensity factors (TSIFs). Meanwhile, peridynamic differential operators (PDDO) are utilized to rewrite the spatial derivatives in the domain integral. Numerical investigations of TSIFs in the single and mixed-mode crack scenarios are provided respectively, and verified by the reference solutions. Good agreements between OSPD and the reference solutions show high performance and capability of the proposed method in thermoelastic fracture analysis.

AB - In this article, several thermoelastic benchmark cases are studied within the framework of ordinary state based peridynamic theory (OSPD). By using OSPD, the limitations of geometrical discontinuity in fracture analysis can be overcome. Meanwhile, double nodes can also be avoided during crack definition. A domain integral method with thermal effect is applied in calculating the thermal stress intensity factors (TSIFs). Meanwhile, peridynamic differential operators (PDDO) are utilized to rewrite the spatial derivatives in the domain integral. Numerical investigations of TSIFs in the single and mixed-mode crack scenarios are provided respectively, and verified by the reference solutions. Good agreements between OSPD and the reference solutions show high performance and capability of the proposed method in thermoelastic fracture analysis.

KW - ordinary state peridynamics

KW - peridynamic differential operator

KW - interaction integral

KW - thermal stress intensity factor

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U2 - 10.1007/s00161-021-01033-z

DO - 10.1007/s00161-021-01033-z

M3 - Article

SN - 0935-1175

VL - 35

SP - 1021

EP - 1040

JO - Continuum Mechanics and Thermodynamics

JF - Continuum Mechanics and Thermodynamics

ER -

Evaluation of stress intensity factors under thermal effect employing domain integral method and ordinary state based peridynamic theory

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