| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a testing method for reproducing a mode I load and a mode II load in any combination relative to a crack by a uniaxial loading. Ž<P>SOLUTION: In a test piece 1 of foam core sandwich panel having a crack 5 generated, an auxiliary plate 7 is adhered to the whole area of the test piece 1 outside an upside crack piece 6a having a smaller bending rigidity on the upper side of the crack 5 so that the bending rigidity gets substantially equal to each other, in upper and lower portions of the crack 5 to obtain a reinforced crack piece 6A. The reinforced crack piece is mounted on struts 32, 33. A downside crack piece 6b on the lower side of the crack 5 is rotatably fixed to the strut 32, while the reinforced crack piece 6A on the upper side of the crack 5 is rotatably fixed to the strut 33. In this condition, a load is applied to a loading point 39 of a lever section 37 using a chip of a leg section 36 of a tool 34 as a fulcrum 38. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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