论文部分内容阅读
1.前言工程中的许多构件都是在动荷作用下工作的,动荷断裂韧性K_(Id)是对这些结构进行断裂强度分析的一个重要参数。目前,国内这方面的测试工作尚未普遍开展,其主要障碍是:1)缺乏能记录瞬态过程的昂贵的仪器;2)对测试结果的有效性缺乏具体分析。本文叙述并讨论了我们所应用的K_(Id)测试方法,这种方法仅用普通的测试仪器和Charpy试验机即可实现,简单实用,有一定的推广价值。
1. Introduction Many of the components in the project work under dynamic loads. The dynamic load fracture toughness, K Id, is an important parameter for the fracture strength analysis of these structures. At present, the testing work in this field in China is not yet carried out universally. The main obstacles are: 1) the lack of expensive instruments capable of recording transient processes; 2) the lack of specific analysis on the validity of test results. This article describes and discusses the K_ (Id) test method that we used. This method can be realized by using ordinary testing equipment and Charpy testing machine. It is simple and practical and has certain promotion value.