Study on Mode III Fracture Toughness Testing Method Using Uniaxial Testing Machine

The mode III fracture toughness testing method using single axis testing machine is developed.Four point shear specimen is used with small amount of mode I loading to avoid the contact of crack surfaces.The shape of the specimen, and the amount of mode I loading are determined based on the three dim...

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Veröffentlicht in:	TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series A 2000/01/25, Vol.66(641), pp.131-136
Hauptverfasser:	KIKUCHI, Masanori, NAGATA, Satoshi, NAKAMURA, Hideo, MOCHIZUKI, Takao
Format:	Artikel
Sprache:	eng ; jpn
Schlagworte:	Four-Point Shear Specimen Fracture Fracture Toughness Fracture Toughness Test Mode III
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Zusammenfassung:	The mode III fracture toughness testing method using single axis testing machine is developed.Four point shear specimen is used with small amount of mode I loading to avoid the contact of crack surfaces.The shape of the specimen, and the amount of mode I loading are determined based on the three dimensional FEM analysis.The crack tip stress field is also obtained, and compared with the HRR(Hutchinson-Rice-Rosengren)singularity.The conventional equation to evaluate the J-integral by the load-displacement record is proposed and the accuracy of this equation is verified.Finally the mode III fracture toughness, J IIIC, of aluminum alloy and A 533 B steel are obtained.
ISSN:	0387-5008 1884-8338
DOI:	10.1299/kikaia.66.131