Real-Time Measurement on Deformation Fields of Notched Samples Under Impact Tension


Autoria(s): 黄晨光; 陈思颖; 段祝平
Data(s)

2005

Resumo

In this paper, a real-time and in situ optical measuring system is reported to observe high-velocity deformations of samples subjected to impact loading. The system consists of a high-speed camera, a He-Ne laser, a frame grabber, a synchronization device and analysis software based on digital correlation theory. The optical system has been adapted to investigate the dynamic deformation field and its evolution in notched samples loaded by an split Hopkinson tension bar, with a resolution of 50 pin and an accuracy of 0.5 mum. Results obtained in experiments are discussed and compared with numerical simulations. It is shown that the measuring system is effective and valid.

Identificador

http://dspace.imech.ac.cn/handle/311007/17115

http://www.irgrid.ac.cn/handle/1471x/1753

Idioma(s)

英语

Palavras-Chave #力学
Tipo

期刊论文