发明名称 |
Thermal test for investigating fracture mechanics of pressure vessel steels by applying thermal shock at high rotational speeds |
摘要 |
Equipment for investigating crack propagation in thick steel plates of a material with applicability for pressure vessels comprises a test specimen in the form of a hollow cylinder of the material under investigation, a vertical spindle from which the hollow cylinder is suspended and which can be rotated at a speed of the order of thousands of revolutions per minute, damping means for damping against flexural resonance vibrations of the cylinder and spindle, a container for the cylinder and means for supplying hot air to the container via a port, means for applying through a port in the container, a jet of cold fluid on to a surface of the cylinder to apply thermal shock thereto the spindle being hollow to accommodate leads from instrumentation on the cylinder to a slip ring unit from which leads to control and recording equipment extend, the instrumentation serving to monitor crack propagation under the conditions of high speed revolution which induce a hoop stress in the material approaching its yield strength, and the thermal shock applied thereto.
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申请公布号 |
US4592662(A) |
申请公布日期 |
1986.06.03 |
申请号 |
US19840600787 |
申请日期 |
1984.04.16 |
申请人 |
UNITED KINGDOM ATOMIC ENERGY AUTHORITY |
发明人 |
ROBBINS, ERIC J.;CLAYTON, ALAN M.;WHITE, WILLIAM P.;LECKENBY, ROBERT E. |
分类号 |
G01N3/00;G01N3/02;G01N3/18;G01N3/60;(IPC1-7):G01N25/72 |
主分类号 |
G01N3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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