Mathematical modelling of the fibre laser surface processing of a zirconia engineering ceramic by means of three-dimensional finite element analysis

P. P. Shukla; J. Lawrence

doi:10.1243/09544062JMES2434

Mathematical modelling of the fibre laser surface processing of a zirconia engineering ceramic by means of three-dimensional finite element analysis

P. P. Shukla^*, J. Lawrence

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

The thermal effects of fibre laser surface treatment on a ZrO₂ engineering ceramic were studied using a computational finite-element model (FEM). Temperature increases on the surface and the bulk of the ZrO₂ during the fibre laser processing were measured using an infra-red thermometer and specifically located thermocouples. The results showed an error of 5 per cent with the surface and 18 per cent within the bulk of the ZrO₂ when comparing the experimental readings with those of the FEM. The FEM revealed a relationship between the traverse speed, power density, time, depth, and the temperature during various stages of the fibre laser surface treatment of the ZrO₂. By utilizing data obtained from a thermogravimetry-differential scanning calorimetry (TG-DSC), the FEM predictions of the temperature distribution were used to map phase transformations and significant events occurring during the fibre laser surface treatment of the ZrO₂. The mapping revealed that the fibre laser surface treatment generally resulted in a phase transformation of the ZrO₂ at various temperatures changes as further shown in the article.

Original language	English
Pages (from-to)	949–964
Number of pages	16
Journal	Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
Volume	225
Issue number	4
Early online date	1 Apr 2011
DOIs	https://doi.org/10.1243/09544062JMES2434
Publication status	Published - 30 Apr 2011
Externally published	Yes

Keywords

fibre laser
surface processing
ZrO2 engineering ceramics
finite-element modelling
phase transformation
Unigraphics (Nastran NX 5.0)

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10.1243/09544062JMES2434

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title = "Mathematical modelling of the fibre laser surface processing of a zirconia engineering ceramic by means of three-dimensional finite element analysis",

abstract = "The thermal effects of fibre laser surface treatment on a ZrO2 engineering ceramic were studied using a computational finite-element model (FEM). Temperature increases on the surface and the bulk of the ZrO2 during the fibre laser processing were measured using an infra-red thermometer and specifically located thermocouples. The results showed an error of 5 per cent with the surface and 18 per cent within the bulk of the ZrO2 when comparing the experimental readings with those of the FEM. The FEM revealed a relationship between the traverse speed, power density, time, depth, and the temperature during various stages of the fibre laser surface treatment of the ZrO2. By utilizing data obtained from a thermogravimetry-differential scanning calorimetry (TG-DSC), the FEM predictions of the temperature distribution were used to map phase transformations and significant events occurring during the fibre laser surface treatment of the ZrO2. The mapping revealed that the fibre laser surface treatment generally resulted in a phase transformation of the ZrO2 at various temperatures changes as further shown in the article.",

keywords = "fibre laser, surface processing, ZrO2 engineering ceramics, finite-element modelling, phase transformation, Unigraphics (Nastran NX 5.0)",

author = "Shukla, {P. P.} and J. Lawrence",

year = "2011",

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doi = "10.1243/09544062JMES2434",

language = "English",

volume = "225",

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journal = "Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science",

issn = "0954-4062",

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Mathematical modelling of the fibre laser surface processing of a zirconia engineering ceramic by means of three-dimensional finite element analysis. / Shukla, P. P.; Lawrence, J.
In: Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, Vol. 225, No. 4, 30.04.2011, p. 949–964.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Mathematical modelling of the fibre laser surface processing of a zirconia engineering ceramic by means of three-dimensional finite element analysis

AU - Shukla, P. P.

AU - Lawrence, J.

PY - 2011/4/30

Y1 - 2011/4/30

N2 - The thermal effects of fibre laser surface treatment on a ZrO2 engineering ceramic were studied using a computational finite-element model (FEM). Temperature increases on the surface and the bulk of the ZrO2 during the fibre laser processing were measured using an infra-red thermometer and specifically located thermocouples. The results showed an error of 5 per cent with the surface and 18 per cent within the bulk of the ZrO2 when comparing the experimental readings with those of the FEM. The FEM revealed a relationship between the traverse speed, power density, time, depth, and the temperature during various stages of the fibre laser surface treatment of the ZrO2. By utilizing data obtained from a thermogravimetry-differential scanning calorimetry (TG-DSC), the FEM predictions of the temperature distribution were used to map phase transformations and significant events occurring during the fibre laser surface treatment of the ZrO2. The mapping revealed that the fibre laser surface treatment generally resulted in a phase transformation of the ZrO2 at various temperatures changes as further shown in the article.

AB - The thermal effects of fibre laser surface treatment on a ZrO2 engineering ceramic were studied using a computational finite-element model (FEM). Temperature increases on the surface and the bulk of the ZrO2 during the fibre laser processing were measured using an infra-red thermometer and specifically located thermocouples. The results showed an error of 5 per cent with the surface and 18 per cent within the bulk of the ZrO2 when comparing the experimental readings with those of the FEM. The FEM revealed a relationship between the traverse speed, power density, time, depth, and the temperature during various stages of the fibre laser surface treatment of the ZrO2. By utilizing data obtained from a thermogravimetry-differential scanning calorimetry (TG-DSC), the FEM predictions of the temperature distribution were used to map phase transformations and significant events occurring during the fibre laser surface treatment of the ZrO2. The mapping revealed that the fibre laser surface treatment generally resulted in a phase transformation of the ZrO2 at various temperatures changes as further shown in the article.

KW - fibre laser

KW - surface processing

KW - ZrO2 engineering ceramics

KW - finite-element modelling

KW - phase transformation

KW - Unigraphics (Nastran NX 5.0)

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DO - 10.1243/09544062JMES2434

M3 - Article

SN - 0954-4062

VL - 225

SP - 949

EP - 964

JO - Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science

JF - Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science

IS - 4

ER -

Mathematical modelling of the fibre laser surface processing of a zirconia engineering ceramic by means of three-dimensional finite element analysis

Abstract

Keywords

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