Predictive and prognostic modelling and simulation of coatings subject to corrosion and mechanical failures

Authors: Khan, Z.A., Latif, J., Nazir, H., Saeed, A. and Stokes, K.

Journal: International Journal of Computational Methods and Experimental Measurements

Volume: 6

Issue: 3

Pages: 487-498

eISSN: 2046-0554

ISSN: 2046-0546

DOI: 10.2495/CMEM-V6-N3-487-498

Abstract:

This research presents analytical and mathematical modelling of coating failures within industrial components, structures, mobile assets and systems due to corrosive degradation and mechanical fracture. These failures lead to several surface problems; therefore, contact mechanics and electrochemistry approaches incorporating induced residual stresses have been adopted to develop a comprehensive solution for the prediction and prognostic of such failures. Experimental study of film cracking and its propagation into substrates, interfacial transient behaviours and film-substrate system has been conducted. A parallel study of corrosive degradation to include cathodic delamination, cathodic blistering and tribo-corrosion of films has been conducted. Experimental and analytical studies of induced residual stresses within the coating and their effects on failure mechanisms and propagation have been completed. A detailed investigation of elastic mismatch at the interfacial contact and interfacial crack tip field has been performed and a complex stress intensity factor is presented. Mathematical derivation of oscillatory singularity, mode mix and interfacial fracture criterion to include adhesion are presented. This paper presents novel mathematical modelling incorporating interfacial crack propagating, diffusion of corrosive species and cathodic blistering for prediction and prognoses of coating failures.

https://eprints.bournemouth.ac.uk/27239/

Source: Scopus

Predictive and prognostic modelling and simulation of coating failures due to corrosion and mechanical failures

Authors: Khan, Z., Latif, J., Nazir, H., Saeed, A. and Stokes, K.

Conference: Materials Characterisation 2017 8th International Conference on Computational Methods and Experiments in Material and Contact Characterisation

Dates: 21-23 June 2017

Publisher: Wessex Institute of Technology

Abstract:

This research presents analytical and mathematical modelling of coating failures within industrial components, structures, mobile assets and systems due to corrosive degradation and mechanical fracture. These failures lead to serval surface problems, therefore contact mechanics and electrochemistry approaches incorporating induced residual stresses have been adopted to develop a comprehensive solution for the prediction prognostic of such failures.

Experimental study of film cracking and its propagation into substrates, interfacial transient behaviours and film-substrate system has been conducted. A parallel study of corrosive degradation to include cathodic delamination, cathodic blistering and tribo-corrosion of films has been conducted. Experimental and analytical studies of induced residual stresses within the coating and their effects on failure mechanisms and propagation have been completed.

A detailed investigation of elastic mismatch at the interfacial contact and interfacial crack tip field has been performed and a complex stress intensity factor is presented. Mathematical derivation of oscillatory singularity, mode mix and interfacial fracture criterion to include adhesion are presented.

This paper presents novel mathematical modelling incorporating interfacial crack propagating, diffusion of corrosive species and cathodic blistering for prediction and prognoses of coating failures.

https://eprints.bournemouth.ac.uk/27239/

http://www.wessex.ac.uk/conferences/2017/materials-characterisation-2017

Source: Manual

Predictive and prognostic modelling and simulation of coating failures due to corrosion and mechanical failures

Authors: Khan, Z.A., Latif, J., Nazir, H., Saeed, A. and Stokes, K.

Journal: International Journal of Computational Methods and Experimental Measurements

Volume: 6

Issue: 3

Pages: 487-498

ISSN: 2046-0554

Abstract:

This research presents analytical and mathematical modelling of coating failures within industrial components, structures, mobile assets and systems due to corrosive degradation and mechanical fracture. These failures lead to serval surface problems, therefore contact mechanics and electrochemistry approaches incorporating induced residual stresses have been adopted to develop a comprehensive solution for the prediction prognostic of such failures. Experimental study of film cracking and its propagation into substrates, interfacial transient behaviours and film-substrate system has been conducted. A parallel study of corrosive degradation to include cathodic delamination, cathodic blistering and tribo-corrosion of films has been conducted. Experimental and analytical studies of induced residual stresses within the coating and their effects on failure mechanisms and propagation have been completed. A detailed investigation of elastic mismatch at the interfacial contact and interfacial crack tip field has been performed and a complex stress intensity factor is presented. Mathematical derivation of oscillatory singularity, mode mix and interfacial fracture criterion to include adhesion are presented. This paper presents novel mathematical modelling incorporating interfacial crack propagating, diffusion of corrosive species and cathodic blistering for prediction and prognoses of coating failures.

https://eprints.bournemouth.ac.uk/27239/

https://www.witpress.com/journals/cmem

Source: BURO EPrints