纺织品机织物的双轴拉伸性能用十字形试样测定弹性性能

[中文适用范围]： This document specifies a test method for determination of the elasticity and related properties of woven textile fabrics, using biaxial stress states, which exhibit stretch characteristics imparted by the presence of an elastomeric fibre, mechanical, or chemical treatment. This biaxial elasticity test is restricted to the use of constant rate of extension (CRE) testing machine. A fabric test specimen of cruciform shape is biaxially extended at a constant rate to a specified load for an agreed number of cycles. The loads are applied cyclically in the orthogonal directions parallel to the arms of the cruciform test piece simultaneously. Measurements of stress and strain are used to determine the biaxial properties of the fabric. [外文原描述]： This document specifies a test method for determination of the elasticity and related properties of woven textile fabrics, using biaxial stress states, which exhibit stretch characteristics imparted by the presence of an elastomeric fibre, mechanical, or chemical treatment. This biaxial elasticity test is restricted to the use of constant rate of extension (CRE) testing machine.