ISO/TS 28660:2022 塑料 .J-R曲线的测定.断裂韧性

标准编号：ISO/TS 28660:2022

中文名称：塑料 .J-R曲线的测定.断裂韧性

英文名称：Plastics — Determination of J-R curves — Fracture toughness

发布日期：2022-04

标准范围

本文件规定了根据塑料的J和R曲线确定断裂韧性的方法。该方法适用于延性和半延性聚合物以及聚合物共混物。它不打算用于裂纹前沿不能与裂纹尖端之前的附加变形过程区分的材料。该方法不适用于用纤维增强的聚合物。笔记？根据该试验方法产生的J-R曲线表征了根据ISO 13586线弹性断裂力学无法表征的抗裂纹扩展性。

This document specifies a method for determining the fracture toughness in term of J and R curves for plastics.The method is suitable for use with ductile and semi-ductile polymers and polymer blends. It is not intended to be used with materials in which the crack front cannot be distinguished from additional deformation processes in advance of the crack tip. The method is unsuitable for polymers reinforced with fibres.NOTE      J-R curves, produced in accordance with this test method, characterizes the crack growth resistance that cannot be characterized by linear elastic fracture mechanics according to ISO 13586.

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