Constitutive testing of Red Wildmoor sandstone

Papamichos, E; Tronvoll, J; Vardoulakis, I; Labuz, JF; Skjaerstein, A; Unander, TE; Sulem, J

dc.contributor.author	Papamichos, E	en
dc.contributor.author	Tronvoll, J	en
dc.contributor.author	Vardoulakis, I	en
dc.contributor.author	Labuz, JF	en
dc.contributor.author	Skjaerstein, A	en
dc.contributor.author	Unander, TE	en
dc.contributor.author	Sulem, J	en
dc.date.accessioned	2014-03-01T01:49:47Z
dc.date.available	2014-03-01T01:49:47Z
dc.date.issued	2000	en
dc.identifier.issn	1082-5010	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/25928
dc.subject	Red Wildmoor sandstone	en
dc.subject	laboratory techniques	en
dc.subject	uniaxial and triaxial compression test	en
dc.subject	triaxial extension test	en
dc.subject	biaxial compression test	en
dc.subject	acoustic measurements	en
dc.subject.classification	Materials Science, Multidisciplinary	en
dc.subject.classification	Mechanics	en
dc.subject.other	COMPRESSION	en
dc.subject.other	ROCK	en
dc.title	Constitutive testing of Red Wildmoor sandstone	en
heal.type	journalArticle	en
heal.language	English	en
heal.publicationDate	2000	en
heal.abstract	The first objective of this research was to improve the experimental measurements for the constitutive behaviour of Red Wildmoor sandstone by optimizing the boundary conditions and specimen geometry, and improving the triaxial test instrumentation. The uniformity of deformation of the rock specimen was improved by minimizing specimen bulging due to specimen slenderness and end-surface frictional constraints. The improvements in the instrumentation were aimed at improving the monitoring of the applied forces, axial and radial deformations, and macroscopic rock failure through use of high precision LVDTs and cantilever gauges, acoustic emission measurements and acoustic pulse transmission velocities. The second objective was to obtain test data for the constitutive modelling and calibration of Red Wildmoor sandstone under various saturating conditions and saturation fluids. An additional task was an experimental study for the improvement of the uniaxial compression test as an index text for rock mechanics applications. The performed modifications allowed the reliable collection of post-peak stress test data of material softening behaviour, and the identification of the point of macroscopic failure of the specimen beyond which the test data cannot be used directly for continuum modelling of material behaviour. (C) 2000 John Wiley & Sons, Ltd.	en
heal.publisher	JOHN WILEY & SONS LTD	en
heal.journalName	MECHANICS OF COHESIVE-FRICTIONAL MATERIALS	en
dc.identifier.isi	ISI:000085589000001	en
dc.identifier.volume	5	en
dc.identifier.issue	1	en
dc.identifier.spage	1	en
dc.identifier.epage	40	en