2002
DOI: 10.1111/j.1151-2916.2002.tb00304.x
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Weight Function Analysis on the R‐Curve Behavior of Multilayered Alumina–Zirconia Composites

Abstract: The single-edge V-notched-beam (SEVNB) testing geometry was used to measure the crack growth resistance (R-curve) behavior of multilayered alumina-zirconia composites. Fracture mechanics weight function analysis was applied to predict the R-curve behavior of multilayered composites having a stepwise change in composition. These results were then used to differentiate the influence of residual stresses from crackbridging stresses on the measured R-curve behavior.

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Cited by 37 publications
(26 citation statements)
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“…A weight function analysis was used to estimate the apparent fracture toughness in laminates with residual stresses [9,[13][14][15][16]. The choice of coordinate system is of great importance to the apparent fracture toughness calculations because of the significant simplification of the procedure.…”
Section: Apparent Fracture Toughness and Threshold Stress Of The B 4 mentioning
confidence: 99%
“…A weight function analysis was used to estimate the apparent fracture toughness in laminates with residual stresses [9,[13][14][15][16]. The choice of coordinate system is of great importance to the apparent fracture toughness calculations because of the significant simplification of the procedure.…”
Section: Apparent Fracture Toughness and Threshold Stress Of The B 4 mentioning
confidence: 99%
“…Integrando ecuación (7) para la formación completa de grieta anillo (θ =2p) y combinándola con las ecuaciones (5) y (8) es posible demostrar que: [9] dónde A, B , y son constantes que dependen de los parámetros de ensayo [43] y t es el tiempo hasta aparición de grieta anillo. Suponiendo que la tensión superficial σ 0 es mayor que la tensión residual, la ecuación (9) puede aproximarse por: [10] Dónde P es la carga aplicada.…”
Section: Resultados Y Discusiónunclassified
“…Primero, porque el factor de intensidad de tensiones de la grieta disminuye cuando se encuentra en la capa con tensión residual compresiva (9,10) . Segundo, porque la grieta se desvía con un ángulo al llegar a la interfase entre los dos materiales debido a que existe un desajuste elástico entre materiales que provoca que el factor de intensidades de tensiones local tenga un modo mixto I/II y, en menor medida, debido a las tensiones residuales [11,12,13].…”
Section: Introductionunclassified
“…However, effect of different moduli on fracture resistance of laminates is not so negligible. The influence of elastic moduli variation across a layered sample on ^-curve behavior is investigated in [10]. It was shown that the elastic moduli difference affects residual stress distribution and has consequently a significant influence on the measured ^-curve behavior.…”
mentioning
confidence: 99%
“…It was shown that the elastic moduli difference affects residual stress distribution and has consequently a significant influence on the measured ^-curve behavior. But neither detailed analysis of conditions of crack arresting nor its stable/non-stable growth has been carried out in [10].…”
mentioning
confidence: 99%