000			02115nab a2200241 4500
005			20260520003108.0
008			260224s2015 xxu ing
041			_aInglés
245	0	0	_aRevisiting the Side Crushing Test Using the Three-Point Bending Test for the Strength Measurement of Catalyst Supports
260			_a _b _cmayo/jun. 2015
270			_a15/09/2015 ; 15/09/2015
300			_a11 p. ; 475-486
520			_aTranscripción del resumen del autor: The side crushing test is commonly used to characterize the mechanical strength of catalyst supports. However its interpretation is complex for cylindrical supports due to their irregular geometry and the various fracture modes induced. A better analysis of the crushing test, altogether with a comparison of the results obtained with the three-Point Bending test (3PB) and an analysis of the defects present within the supports, provide a better interpretation of their crushing strength data. Experimental results show that two different fracture modes appear during the crushing test – one under bending configuration and one under crushing configuration – inducing a large scatter of the data. Moreover, a comparison with the 3PB test shows that the strength measured in crushing is lower and the scatter of the data is larger than the ones obtained in bending. This is a consequence of a Weibull size effect and of the presence of macro-defects within one type of the tested supports. It is concluded that an analysis of the fracture modes activated during crushing has to be carried out to obtain a correct distribution of the strength data. The presence of macro-defects within the microstructure of the supports decreases drastically the crushing strength, while their influence on the bending strength is more limited.
581			_a3
773	0		_tOil and Gas Science and Technology _g70
942			_cARTICULO
100	1		_aStaub, D. _954916
100	1		_aMeille, S. _954917
100	1		_aLe Corre, V. _954918
100	1		_aChevalier, J. _954919
100	1		_aRouleau, L. _954906
999			_c189213 _d189213