A kind of method to evaluate and test the tension-compressionfatigue strength of gray cast iron was introduced in this paper.
介绍了一种评价与测试灰铸铁铸件的拉压疲劳极限的方法。
2
The proof strength can be used to evaluate the tension-compressionfatigue strength of gray cast iron, and also used as the stress level of the tension-compressionfatigue test.
Chapter 2: discuss experimental techniques of concrete under multiaxial fatigue load, carry out concrete uniaxial fluctuating compressionfatigue experiments and analyze the experiment results.