EXPERIMENTAL STUDY ON THE PLANE STRAIN DYNAMIC FRACTURE TOUGHNESS OF 20CRMNTI BASED ON IMPROVED HPB PLATFORM

EXPERIMENTAL STUDY ON THE PLANE STRAIN DYNAMIC FRACTURE TOUGHNESS OF 20CRMNTI BASED ON IMPROVED HPB PLATFORM

To obtain the dynamic fracture toughness of 20 Cr Mn Ti,an impact loading test was conducted on three-point bending specimens with the improved Hopkinson pressure bar.Dynamic stress intensity factor was determined by the spring mass model.The onset time of crack initiation is experimentally detected...

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Bibliographic Details
Main Authors: SONG Kun, ZHANG XiaoDi, DING Jun, HUANG Xia, HE XiaoJin, WANG JiaBin, WANG LuSheng
Format: Article
Language:zho
Published: Editorial Office of Journal of Mechanical Strength 2018-01-01
Series:Jixie qiangdu
Subjects:
20CrMnTi;Hopkinson pressure bar;Lumped mass-spring models;High-speed camera system;GOM Correlate;Dynamic fracture toughness
Online Access:http://www.jxqd.net.cn/thesisDetails#10.16579/j.issn.1001.9669.2018.04.09

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