...J.D. Bray; S.M. Merry The wide strip tension test imposes boundary conditions that vary from a uniaxial stress state near the middle of the specimen to a plane-strain, biaxial stress state at the clamps. The multi-axial tension test imposes boundary conditions that vary from a plane-strain, biaxial...

...S.M. Merry; J.D. Bray The geomembrane wide strip tension test is a performance test that provides test data from which the stress-strain response of a geomembrane may be calculated. However, the volumetric response of the geomembrane must be accounted for when processing the test data to obtain...