断裂韧性反映了材料抵抗裂纹失稳扩展即抵抗脆性断裂的能力，是材料一个重要的力学性能指标。

ASTM E399-09  看来比较新

This test method is under the jurisdiction of ASTM Committee E08 on Fatigue and Fracture and is the direct responsibility of Subcommittee E08.07 on FractureMechanics.

Current edition approved July 1, 2009. Published August 2009. Originally approved in 1970. Last previous edition approved in 2008 as E 399 – 08.

 

ASTM E399-90 这是一个老版本

This test method is under the jurisdiction of ASTM Committee E-8 on Fatigue and Fracture and is the direct responsibility of Subcommittee E08.07 on Linear–Elastic Fracture.

Current edition approved Nov. 30, 1990. Published April 1991. Originally published as E 399 – 70 T. Last previous edition E 399 – 83.

 

 金属材料平面应变断裂韧度KIC试验方法  国标2007

以前还有一个关于金属材料室/高温拉伸试验的国家标准：

http://www.sciencetimes.com.cn/m/user_content.aspx?id=27416 

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