Invention Grant
- Patent Title: Compact pipe specimen
- Patent Title (中): 紧凑型管样
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Application No.: US12747758Application Date: 2008-10-31
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Publication No.: US08549929B2Publication Date: 2013-10-08
- Inventor: Chang Sung Seok , Sung Keun Cho , Kwang Sang Seon , Kwang Hyeon Lee , Soo Park
- Applicant: Chang Sung Seok , Kwang Sang Seon , Kwang Hyeon Lee , Soo Park , Haeng Cheol Cho
- Applicant Address: KR
- Assignee: Sungkyunkwan University Foundation for Corporate Collaboration
- Current Assignee: Sungkyunkwan University Foundation for Corporate Collaboration
- Current Assignee Address: KR
- Agency: Cantor Colburn LLP
- Priority: KR10-2007-0128751 20071212
- International Application: PCT/KR2008/006449 WO 20081031
- International Announcement: WO2009/075475 WO 20090618
- Main IPC: G01N3/20
- IPC: G01N3/20

Abstract:
A compact pipe specimen applicable to a fracture toughness test used to evaluate physical properties of a pipe material is provided. The compact pipe specimen includes: a pipe having a notch portion formed in a circumferential direction and a crack portion formed at the edge of the notch portion; and first and second jigs having openings to which a pressurizing unit is coupled so as to cause a bending load on the pipe, having the notch portion therebetween, and attached to the exterior surface of the pipe, respectively. It is unnecessary to correct the influence of a constraint effect due to varying sizes and shapes of the specimen. There is no restriction to the curvature and thickness of a pipe. A fracture behavior of a pipe crack portion can be precisely simulated.
Public/Granted literature
- US20110094307A1 COMPACT PIPE SPECIMEN Public/Granted day:2011-04-28
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