Potential drop method for online crack length measurement during fracture testing: Development of a correction procedure

•A procedure is proposed to correct overestimation of crack length by DCPD.•Procedure uses blunting line equation and measured stretch zone width.•Application of this procedure to fracture test data on SS 316L(N) is demonstrated.•The J-R curve results compare favorably with those from standard metho...

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Veröffentlicht in:	Engineering fracture mechanics 2017-07, Vol.180, p.148-160
Hauptverfasser:	Gajji, Aneesha, Sasikala, G.
Format:	Artikel
Sprache:	eng
Schlagworte:	Compact tension Crack length measurement Crack propagation Cracks DCPD Fatigue failure Fatigue tests Fracture mechanics Fracture testing Fracture toughness Modulus of elasticity Physical properties Plastic deformation Plasticity Stretch zone
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