Journal Published Online: 29 December 2015
Volume 44, Issue 6

Experimental Estimation of Resistance Curves From Load-CMOD Record for FFCT Specimens

CODEN: JTEVAB

Abstract

Fracture toughness of ductile materials is often characterized by J resistance curves. It is generally required to adopt load line crack mouth opening displacement (CMOD) records in load line compact tension (LLCT) specimens to calculate the J integral according to ASTM E1820-13e1. However, in some cases, for example in nuclear engineering, due to material size limitations, a standard test specimen size is not achievable, and attaching or mounting the displacement transducer to measure the load line CMOD (LLD) of a smaller compact tension specimen is very challenging, and an alternative approach is required. The present study is aimed at evaluating the use of front face CMOD (FFD) records in front face compact tension (FFCT) specimens to estimate J resistance curves. Results are compared with those using LLD-based J calculations for P92 steel. It is shown that J resistance curves determined from the two approaches are in good agreement.

Author Information

Shi, Kaikai
Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province, School of Mechanics and Engineering, Southwest Jiaotong Univ., Chengdu, CN
Cai, Lixun
Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province, School of Mechanics and Engineering, Southwest Jiaotong Univ., Chengdu, CN
Hu, Yunming
MTS System Corporation, Eden Prairie, MN, US
Salmon, David
MTS System Corporation, Eden Prairie, MN, US
Bao, Chen
Applied Mechanics and Structure Safety Key Laboratory of Sichuan Province, School of Mechanics and Engineering, Southwest Jiaotong Univ., Chengdu, CN
Pages: 7
Price: $25.00
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Details
Stock #: JTE20140173
ISSN: 0090-3973
DOI: 10.1520/JTE20140173