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TESTING TECH--FLEXURAL TESTING OF COMPOSITE MATERIALS

机译:测试技术-复合材料的弯曲测试

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摘要

Flexural strength and stiffness are not basic material properties. They are the combined effects of a material's basic tensile, compressive and shear properties. That is, when a flexural loading is applied to a specimen, all three of the material's basic stress states are induced. Material failure, then, is dictated by which of the three basic stresses is the first to reach its limiting value - that is, its strength. Despite the obvious complexities implied by the above, flexural testing is common, the test specimen is easy to prepare, the fixture can be simple and the test itself is easy to perform.
机译:弯曲强度和刚度不是基本的材料特性。它们是材料的基本拉伸,压缩和剪切特性的综合影响。也就是说,当向样品施加弯曲载荷时,会诱导材料的所有三种基本应力状态。那么,材料破坏是由三个基本应力中的哪个首先达到其极限值(即强度)决定的。尽管上面暗示了明显的复杂性,但弯曲测试还是很普遍的,测试样品易于制备,夹具可以简单并且测试本身易于执行。

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