Implementation of a continuum damage model for creep fracture and fatigue analyses to ANSYS

Petteri Kauppila; Reijo Kouhia; Juha Ojanperä; Timo Saksala; Timo Sorjonen

Implementation of a continuum damage model for creep fracture and fatigue analyses to ANSYS

Petteri Kauppila, Reijo Kouhia, Juha Ojanperä, Timo Saksala, Timo Sorjonen

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific

Abstract

This paper discusses the USERMAT implementation of a thermodynamically consistent model for creep and creep-damage analysis in the ANSYS finite element software. The model is based on two thermodynamic potentials, the Helmholtz free energy and the complementary form of the dissipation potential and it can be proven to fullfil the dissipation inequality. Examples on creep fatigue analysis of steam boiler superheater made of T24 steel and operating within a temperature range from 500 to 600 celcius are presented.

Original language	English
Title of host publication	Improving Simulation Prediction by Using Advanced Material Models
Pages	25-26
Number of pages	2
Publication status	Published - 2019
Externally published	Yes
Publication type	B3 Non-refereed article in conference proceedings

Cite this

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title = "Implementation of a continuum damage model for creep fracture and fatigue analyses to ANSYS",

abstract = "This paper discusses the USERMAT implementation of a thermodynamically consistent model for creep and creep-damage analysis in the ANSYS finite element software. The model is based on two thermodynamic potentials, the Helmholtz free energy and the complementary form of the dissipation potential and it can be proven to fullfil the dissipation inequality. Examples on creep fatigue analysis of steam boiler superheater made of T24 steel and operating within a temperature range from 500 to 600 celcius are presented.",

author = "Petteri Kauppila and Reijo Kouhia and Juha Ojanper{\"a} and Timo Saksala and Timo Sorjonen",

year = "2019",

language = "English",

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T1 - Implementation of a continuum damage model for creep fracture and fatigue analyses to ANSYS

AU - Kauppila, Petteri

AU - Kouhia, Reijo

AU - Ojanperä, Juha

AU - Saksala, Timo

AU - Sorjonen, Timo

PY - 2019

Y1 - 2019

N2 - This paper discusses the USERMAT implementation of a thermodynamically consistent model for creep and creep-damage analysis in the ANSYS finite element software. The model is based on two thermodynamic potentials, the Helmholtz free energy and the complementary form of the dissipation potential and it can be proven to fullfil the dissipation inequality. Examples on creep fatigue analysis of steam boiler superheater made of T24 steel and operating within a temperature range from 500 to 600 celcius are presented.

AB - This paper discusses the USERMAT implementation of a thermodynamically consistent model for creep and creep-damage analysis in the ANSYS finite element software. The model is based on two thermodynamic potentials, the Helmholtz free energy and the complementary form of the dissipation potential and it can be proven to fullfil the dissipation inequality. Examples on creep fatigue analysis of steam boiler superheater made of T24 steel and operating within a temperature range from 500 to 600 celcius are presented.

M3 - Conference contribution

SP - 25

EP - 26

BT - Improving Simulation Prediction by Using Advanced Material Models

ER -

Implementation of a continuum damage model for creep fracture and fatigue analyses to ANSYS

Abstract

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