ASTM D790未增强和增强塑料及电绝缘材料的挠曲性的标准试验方法
日期:2012-02-08 11:29
t methods is in the location of the maximum bending moment and maximum axial fiber stresses. The maximum axial fiber stresses occur on a line under the loading nose in 3-point bending and over the area between the loading noses in 4-point bending.
Flexural properties may vary with specimen depth, temperature, atmospheric conditions, and the difference in rate of straining as specified in Procedures A and B (see also Note 7).
Before proceeding with these test methods, reference should be made t
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09/14 16:31