It expatiated the effects of the factors, such as sample size, temperature, humidity, notch and etc, on the result of the plastic impact strength test.
阐述了试样尺寸，温度、湿度、缺口以及缺口加工方式等因素对塑料冲击强度测试结果的影响。
2
The specimen deformation and the crack morphology were studied. After comparing with the fracture of flame chamber of aerojet, the most suitable size and shape of specimen notch has been determined.
Using 945 steel and 921a steel, this article studies the effect of weld profile and size on the cracking behavior of a central notch in a three-notch specimen for an explosion bulge test.