Comprehensive study on the crack tip parameters of two types of disc specimens under combined confining pressure and diametric concentrated forces

•Fracture parameters of HCCD and CCCD specimens were comprehensively calibrated.•Change of crack tip fracture parameters was analyzed.•Fitting equation between mode II loading angle and confining pressure was given.•Advantages and disadvantages of CCCD and HCCD specimens were compared. Stress intens...

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Veröffentlicht in:	Theoretical and applied fracture mechanics 2019-10, Vol.103, p.102317, Article 102317
Hauptverfasser:	Zhou, Xiaoping, Wang, Longfei, Berto, Filippo, Zhou, Lunshi
Format:	Artikel
Sprache:	eng
Schlagworte:	Apertures Axial stress Biaxiality ratio Centrally cracked circular disc (CCCD) Confining Confining pressure Crack tips Finite element method Hollow central cracked disc (HCCD) Inclination angle Mathematical analysis Parameters Stress intensity factor Stress intensity factors T-stress
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