ISSN:
1741-2765
Keywords:
Biaxial testing
;
triaxial testing
;
composite materials
;
electromechanical
;
failure envelope
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract An experimental facility has been developed that is capable of generating any combination of tensile and/or compressive forces on three mutually orthogonal axes of a cruciform-shaped composite specimen. Using this computer-controlled test facility, any stress ratio in biaxial (σ1-σ2) or triaxial (σ1-σ2-σ3) stress space can be evaluated. A description of this electromechanical testing facility, including the reaction frame, test fixture, computer control system and instrumentation is included. Once fully assembled, uniaxial, biaxial and triaxial tests were performed on aluminum and on a carbon/epoxy composite laminate to evaluate the performance of the test facility. Using the data generated from these tests, the performance of many aspects of the triaxial testing facility, including the intra-axis alignment, automated computer testing algorithms, data acquisition algorithms, calibration values and machine compliance, was evaluated. The overall very acceptable performance of the triaxial testing facility is believed to have been demonstrated.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02327505
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