Mechanical properties of brittle materialsBrittle materials are difficult to tensile test because of gripping problems. They either crack in conventional grips or they are crushed. Furthermore, they may be difficult to make into tensile specimens having, for example, threated ends or donut shapes. To overcome the problem, simple rectangular shapes can be used in bending (i.e., a simple beam) in order to obtain the modulus of rupture and the elastic modulus. The equipment necessary consists of a fixture for supporting the specimens horizontally at two points, these points contact points being rollers which are free to rotate. The force necessary to bend the specimen is produced by a tup attached to the crosshead of an Instron machine. Here, the experimental procedure is explained.
Document ID
19920021047
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Cornwell, L. R. (Texas A&M Univ. College Station, TX, United States)
Thornton, H. R. (Texas A&M Univ. College Station, TX, United States)
Date Acquired
September 6, 2013
Publication Date
June 1, 1992
Publication Information
Publication: NASA. Langley Research Center, National Educators' Workshop: Update 1991. Standard Experiments in Engineering Materials Science and Technology