On the correlation of scratch testing using separated elastoplastic and rigid plastic descriptions of the representative stress

Representative Stress Correlation of Global Scratch Quantities at Scratch Testing: Experimental Verification

“…As mentioned above, in this section the predictions from [23,24]-as detailed in Equations (8) and (10)-were compared with the corresponding experimental results presented in [20]. The experimental scratch hardness values, presented and discussed below, were averages taken from the experiments, and standard deviations have not been shown here for brevity but have been clearly presented in [20].…”

“…The outline of the theory below is-essentially-a repetition of the foundation laid down previously by Larsson [23,24]. This presentation is, therefore, very brief.…”

“…These global scratch quantities included normal and tangential scratch hardness, which were further investigated in this study. Experimental verification of these scratch relations is of great importance, which was attempted here using predictions from [23,24]. These predictions were compared to corresponding experimental results originally presented by Wredenberg and Larsson [20].…”

“…Finite element methods are obviously a very important part of an analysis of scratch testing, as shown in [14][15][16][17][18][19][20][21][22] (just to mention a few), where an important conclusion from these results was that the Johnson parameter [3,4] in Equation (1) governed correlation also at scratch problems. This was further clarified in [23,24], where explicit formulae for this correlation for a number of global scratch quantities-accounting for the difference in scratch behavior at level II and level III scratching-were presented. These global scratch quantities included normal and tangential scratch hardness, which were further investigated in this study.…”

Comportamento mecânico de sistemas revestidos submetidos a esforços de contato normais e tangenciais.

“…Os modos de falha associados com o ensaio de riscamento têm sido identificados com base em observações e análise do sulco gerado durante o teste [15,16,37,38,42,48,49,51,[53][54][55][56][57][58]. Desta forma, alguns modos de falha envolvem o destacamento do revestimento do substrato, sendo, portanto, de importância direta durante uso do ensaio de riscamento como avaliação da adesão.…”