2026-06-27T22:30:09Zhttps://riubu.ubu.es/oai/requestoai:riubu.ubu.es:10259/56632021-11-02T12:04:42Zcom_10259_4201com_10259_5086com_10259_2604col_10259_4505
Repositorio Institucional de la Universidad de Burgos
author
Martínez Pañeda, Emilio
author
Cuesta Segura, Isidoro Iván
author
Peñuelas, I.
author
Díaz Portugal, Andrés
author
Alegre Calderón, Jesús Manuel
2021-03-24T10:59:39Z
2021-03-24T10:59:39Z
2016-12
0167-8442
http://hdl.handle.net/10259/5663
10.1016/j.tafmec.2016.09.002
Ductile damage modeling within the Small Punch Test (SPT) is extensively investigated. The capabilities of the SPT to reliably estimate fracture and damage properties are thoroughly discussed and emphasis is placed on the use of notched specimens. First, different notch profiles are analyzed and constraint conditions quantified. The role of the notch shape is comprehensively examined from both triaxiality and notch fabrication perspectives. Afterwards, a methodology is presented to extract the micromechanical-based ductile damage parameters from the load-displacement curve of notched SPT samples. Furthermore, Gurson-Tvergaard-Needleman model predictions from a top-down approach are employed to gain insight into the mechanisms governing crack initiation and subsequent propagation in small punch experiments. An accurate assessment of micromechanical toughness parameters from the SPT is of tremendous relevance when little material is available.
eng
Small Punch Test
Fracture toughness
Ductile damage
Finite element method
Damage modeling in Small Punch Test specimens
info:eu-repo/semantics/article
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URL
https://riubu.ubu.es/bitstream/10259/5663/1/Martinez-tafm_2018.pdf
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URL
https://riubu.ubu.es/bitstream/10259/5663/4/Martinez-tafm_2018.pdf.txt
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Martinez-tafm_2018.pdf.txt