Nondestructive evaluation of delaminations in fresco plaster using transient infrared thermography

Abstract

A transient method of thermal nondestructive testing is applied to detect subsurface delaminations in fresco plaster as a part of restoration work that is being conducted in Italy. A two-dimensional cylindrical model is used to estimate temperature distribution in materials with defects of various sizes and depths. The possibility of testing plaster with thickness up to 30 mm is illustrated. The choice of heating technique, which is supposed to be really nondestructive to ancient frescoes and powerful enough to create reasonable temperatures signals, is considered. Test duration and optimum sampling interval are discussed also. The structural noise of plaster and the influence of surface painting are investigated.

Original language	English
Pages (from-to)	257-274
Number of pages	18
Journal	Research in Nondestructive Evaluation
Volume	5
Issue number	4
DOIs	https://doi.org/10.1007/BF01606462
Publication status	Published - Dec 1994

ASJC Scopus subject areas

Materials Science (miscellaneous)

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10.1007/BF01606462

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title = "Nondestructive evaluation of delaminations in fresco plaster using transient infrared thermography",

abstract = "A transient method of thermal nondestructive testing is applied to detect subsurface delaminations in fresco plaster as a part of restoration work that is being conducted in Italy. A two-dimensional cylindrical model is used to estimate temperature distribution in materials with defects of various sizes and depths. The possibility of testing plaster with thickness up to 30 mm is illustrated. The choice of heating technique, which is supposed to be really nondestructive to ancient frescoes and powerful enough to create reasonable temperatures signals, is considered. Test duration and optimum sampling interval are discussed also. The structural noise of plaster and the influence of surface painting are investigated.",

author = "E. Grinzato and P. Bison and S. Marinetti and V. Vavilov",

year = "1994",

month = dec,

doi = "10.1007/BF01606462",

language = "English",

volume = "5",

pages = "257--274",

journal = "Research in Nondestructive Evaluation",

issn = "0934-9847",

publisher = "Taylor and Francis Ltd.",

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AU - Grinzato, E.

AU - Bison, P.

AU - Marinetti, S.

AU - Vavilov, V.

PY - 1994/12

Y1 - 1994/12

N2 - A transient method of thermal nondestructive testing is applied to detect subsurface delaminations in fresco plaster as a part of restoration work that is being conducted in Italy. A two-dimensional cylindrical model is used to estimate temperature distribution in materials with defects of various sizes and depths. The possibility of testing plaster with thickness up to 30 mm is illustrated. The choice of heating technique, which is supposed to be really nondestructive to ancient frescoes and powerful enough to create reasonable temperatures signals, is considered. Test duration and optimum sampling interval are discussed also. The structural noise of plaster and the influence of surface painting are investigated.

AB - A transient method of thermal nondestructive testing is applied to detect subsurface delaminations in fresco plaster as a part of restoration work that is being conducted in Italy. A two-dimensional cylindrical model is used to estimate temperature distribution in materials with defects of various sizes and depths. The possibility of testing plaster with thickness up to 30 mm is illustrated. The choice of heating technique, which is supposed to be really nondestructive to ancient frescoes and powerful enough to create reasonable temperatures signals, is considered. Test duration and optimum sampling interval are discussed also. The structural noise of plaster and the influence of surface painting are investigated.

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