介绍了裂纹尖端张开位移(CTOD)评定技术的概念、发展历程、技术特点、试验方法等,提出了CTOD评定技术现有的问题并概述了这些问题的研究进展.最后简述了CTOD评定技术在工程中的广泛应用.随着相关研究的进展,CTOD理论体系必将更加完善并拥有广阔的发展前景.
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