Coupled thermal stress simulations of ductile tearing

Neilsen, Michael K.; Dion, Kristin

doi:10.1007/s10704-016-0093-y

Title: Coupled thermal stress simulations of ductile tearing

Abstract

Predictions for ductile tearing of a geometrically complex Ti-6Al-4V plate were generated using a Unified Creep Plasticity Damage model in fully coupled thermal stress simulations. Uniaxial tension and butterfly shear tests performed at displacement rates of 0.0254 and 25.4 mm/s were also simulated. Results from these simulations revealed that the material temperature increase due to plastic work can have a dramatic effect on material ductility predictions in materials that exhibit little strain hardening. Furthermore, this occurs because the temperature increase causes the apparent hardening of the material to decrease which leads to the initiation of deformation localization and subsequent ductile tearing earlier in the loading process.

Authors:

Neilsen, Michael K. ^[1]; Dion, Kristin ^[1]

Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Publication Date:: Tue Mar 01 00:00:00 EST 2016

Research Org.:: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Sandia National Lab. (SNL-CA), Livermore, CA (United States)

Sponsoring Org.:: USDOE National Nuclear Security Administration (NNSA)

OSTI Identifier:: 1251630

Report Number(s):: SAND-2015-8425J
Journal ID: ISSN 0376-9429; 607299

Grant/Contract Number:: AC04-94AL85000

Resource Type:: Accepted Manuscript

Journal Name:: International Journal of Fracture

Additional Journal Information:: Journal Volume: 198; Journal Issue: 1-2; Journal ID: ISSN 0376-9429

Publisher:: Springer

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; ductile tearing; metals; plasticity; damage; constitutive model

Citation Formats


                    Neilsen, Michael K., and Dion, Kristin. Coupled thermal stress simulations of ductile tearing.  United States: N. p., 2016. 
Web.  doi:10.1007/s10704-016-0093-y.

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                    Neilsen, Michael K., & Dion, Kristin. Coupled thermal stress simulations of ductile tearing.  United States.  https://doi.org/10.1007/s10704-016-0093-y

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                    Neilsen, Michael K., and Dion, Kristin. Tue .  
"Coupled thermal stress simulations of ductile tearing".  United States.  https://doi.org/10.1007/s10704-016-0093-y.  https://www.osti.gov/servlets/purl/1251630.

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@article{osti_1251630,

  title        = {Coupled thermal stress simulations of ductile tearing},

  author       = {Neilsen, Michael K. and Dion, Kristin},

  abstractNote = {Predictions for ductile tearing of a geometrically complex Ti-6Al-4V plate were generated using a Unified Creep Plasticity Damage model in fully coupled thermal stress simulations. Uniaxial tension and butterfly shear tests performed at displacement rates of 0.0254 and 25.4 mm/s were also simulated. Results from these simulations revealed that the material temperature increase due to plastic work can have a dramatic effect on material ductility predictions in materials that exhibit little strain hardening. Furthermore, this occurs because the temperature increase causes the apparent hardening of the material to decrease which leads to the initiation of deformation localization and subsequent ductile tearing earlier in the loading process.},

  doi          = {10.1007/s10704-016-0093-y},

  journal      = {International Journal of Fracture},

  number       = 1-2,

  volume       = 198,

  place        = {United States},

  year         = {Tue Mar 01 00:00:00 EST 2016},

  month        = {Tue Mar 01 00:00:00 EST 2016}

}

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https://doi.org/10.1007/s10704-016-0093-y

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Works referenced in this record:

The Sandia Fracture Challenge: blind round robin predictions of ductile tearing
journal, January 2014

Boyce, B. L.; Kramer, S. L. B.; Fang, H. E.
International Journal of Fracture, Vol. 186, Issue 1-2
DOI: 10.1007/s10704-013-9904-6

The second Sandia Fracture Challenge: predictions of ductile failure under quasi-static and moderate-rate dynamic loading
journal, March 2016

Boyce, B. L.; Kramer, S. L. B.; Bosiljevac, T. R.
International Journal of Fracture, Vol. 198, Issue 1-2
DOI: 10.1007/s10704-016-0089-7

An accurate numerical algorithm for stress integration with finite rotations
journal, June 1987

Flanagan, D. P.; Taylor, L. M.
Computer Methods in Applied Mechanics and Engineering, Vol. 62, Issue 3
DOI: 10.1016/0045-7825(87)90065-X

A Generalized Isotropic Yield Criterion
journal, June 1972

Hosford, W. F.
Journal of Applied Mechanics, Vol. 39, Issue 2
DOI: 10.1115/1.3422732

A discussion of stress rates in finite deformation problems
journal, January 1984

Johnson, George C.; Bammann, Douglas J.
International Journal of Solids and Structures, Vol. 20, Issue 8
DOI: 10.1016/0020-7683(84)90061-1

A viscoplastic theory for braze alloys
report, April 1996

Neilsen, M. K.; Burchett, S. N.; Stone, C. M.
DOI: 10.2172/233338

Ductile tearing predictions with Wellman’s failure model
journal, December 2013

Neilsen, Michael K.; Dion, Kristin N.; Fang, H. Eliot
International Journal of Fracture, Vol. 186, Issue 1-2
DOI: 10.1007/s10704-013-9913-5

Works referencing / citing this record:

The third Sandia fracture challenge: predictions of ductile fracture in additively manufactured metal
journal, July 2019

Kramer, Sharlotte L. B.; Jones, Amanda; Mostafa, Ahmed
International Journal of Fracture, Vol. 218, Issue 1-2
DOI: 10.1007/s10704-019-00361-1

Predicting ductile tearing of additively manufactured 316L stainless steel
journal, June 2019

Neilsen, Michael K.
International Journal of Fracture, Vol. 218, Issue 1-2
DOI: 10.1007/s10704-019-00367-9

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Title: Coupled thermal stress simulations of ductile tearing

Abstract

Citation Formats

The Sandia Fracture Challenge: blind round robin predictions of ductile tearing journal, January 2014

The second Sandia Fracture Challenge: predictions of ductile failure under quasi-static and moderate-rate dynamic loading journal, March 2016

An accurate numerical algorithm for stress integration with finite rotations journal, June 1987

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A discussion of stress rates in finite deformation problems journal, January 1984

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journal, January 2014

The second Sandia Fracture Challenge: predictions of ductile failure under quasi-static and moderate-rate dynamic loading
journal, March 2016

An accurate numerical algorithm for stress integration with finite rotations
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journal, June 1972

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report, April 1996

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journal, December 2013

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journal, June 2019