Scratch durability of automotive clear coatings: A quantitative, reliable and robust methodology

Jardret, Vincent; Lucas, B. N.; Oliver, W. C.; Ramamurthy, A. C.

doi:10.1007/bf02698026

Cited by 54 publications

(26 citation statements)

References 17 publications

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“…Consequently, the tensile stress/ strain behavior of clear coats can be used to predict scratch behavior. This phenomenon has been shown by Jardret and Morel in detail (Jardret et al, 2000;Jardret & Morel, 2003). Fig.…”

Section: Scratch Typesupporting

confidence: 65%

Effects of Environmental Conditions on Degradation of Automotive Coatings

Mohseni¹,

Ramezanzadeh²,

Yari³

2011

New Trends and Developments in Automotive Industry

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Section: Scratch Typesupporting

confidence: 65%

Effects of Environmental Conditions on Degradation of Automotive Coatings

Mohseni¹,

Ramezanzadeh²,

Yari³

2011

New Trends and Developments in Automotive Industry

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“…4 are represented in symbols, although the line corresponds to the initial Tabor's rule [12] defined by Eq. 1 [1] …”

Section: Resultsmentioning

confidence: 99%

“…Scratch test is one of the most popular methods to quantify the mechanical properties of thin polymeric films and also to assess to adhesion of coatings to substrate [1,2]. Even if this experimental method is easy to handle, it is well known that scratch experiments give only comparative values of mechanical properties for a given experimental set up and then only qualitative ideas of film/substrate adhesion.…”

Section: Introductionmentioning

confidence: 99%

Strain and Stress Fields During Scratch Tests on Amorphous Polymers: Influence of the Local Friction

Pelletier

Gauthier²,

Schirrer³

2008

Tribol Lett

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In this paper, we present results deduced from three-dimensional finite element simulations of scratching, with spherical indenter geometry at different imposed ratios, a/R in the range of 0.1-0.9. For each simulated ratio a/R, the local friction has been increased from 0 to 1. The paper aims at studying the tangential scratch behaviour of homogeneous polymeric substrates, considered in first approximation as elastic linear-hardening plastic material. For only elasticplastic contacts, without any strain rate or temperature effects, it focuses on studying some characteristic response due to spherical scratching process as a function of scratching conditions (a/R, l loc ) such as the stress and plastic strain fields, including the plastic zone dimension and the definition of an volume average plastic strain.

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“…micron size scratches, to very large up to a millimeter width. Mar is referred to those mechanical damages with small size, a few microns in width and depth, produced typically by automatic car wash brushes, hand washing and sand abrading particles (Courter and Mar 1997;Jardret et al 2000;Hara et al 2000;Barletta et al 2010;Bautista et al 2011). In fact, the cause of mar is a slight mechanical stress which is not easily visible with human eyes.…”

Section: Scratch and Mar Resistance Of The Polymeric Materialsmentioning

confidence: 97%

Nanotribological Characterization of Polymeric Nanocoatings: From Fundamental to Application

Mohseni

Yahyaei

Yari

et al. 2013

Solid Mechanics and Its Applications

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Polymers are chemical compounds or mixture of compounds consisting of repeating structural units created through a process known polymerization. These are important groups of materials made up of long chain carbon, covalently bonded together. Polymerization is a process in which monomeric molecules react together chemically to form macromolecules. Polymers are now finding increasing use in engineering applications due to unique properties. Mechanical strength of polymers is of prime importance in engineering applications. Polymers in their service life are exposed to different mechanical and thermal stresses. Durability of polymer strongly depends on the resistance of these materials against environmental condition. In order to assess the strength of material, good knowledge on mechanic of materials is imperative. In this manner, this section aims at introducing mechanical properties of polymers.

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Scratch durability of automotive clear coatings: A quantitative, reliable and robust methodology

Cited by 54 publications

References 17 publications

Effects of Environmental Conditions on Degradation of Automotive Coatings

Effects of Environmental Conditions on Degradation of Automotive Coatings

Strain and Stress Fields During Scratch Tests on Amorphous Polymers: Influence of the Local Friction

Nanotribological Characterization of Polymeric Nanocoatings: From Fundamental to Application

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