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Conference papers
Experimental and numerical analysis of hydrogen interaction with plastic strain in a high strength steel
Abstract : Cyclic loading tests were performed on micro-notched samples of high-strength steel S690QT in air and under cathodic polarisation in a saline solution. These specimens were modelled and their behaviour simulated by finite elements calculations with a combined nonlinear isotropic-kinematic hardening constitutive law. This model can simulate cyclic softening and ratcheting effect of the high-strength steel. Stress and strain fields in the vicinity of the notch-tip were calculated. Results show that a strong dependence of the crack initiation with plastic strain accumulation. Hydrogen assisted cracking mechanism is discussed based on arrangements of dislocations structures.
Cited literature [12 references]
https://hal-emse.ccsd.cnrs.fr/emse-01063843
Contributor : David Delafosse Connect in order to contact the contributor
Submitted on : Sunday, September 14, 2014 - 11:53:29 AM
Last modification on : Monday, October 18, 2021 - 4:22:02 PM
Long-term archiving on: : Monday, December 15, 2014 - 10:05:49 AM
Contributor : David Delafosse Connect in order to contact the contributor
Submitted on : Sunday, September 14, 2014 - 11:53:29 AM
Last modification on : Monday, October 18, 2021 - 4:22:02 PM
Long-term archiving on: : Monday, December 15, 2014 - 10:05:49 AM
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