| 摘要 |
PROBLEM TO BE SOLVED: To provide an impact testing apparatus capable of accurately and easily measuring the impact strength of various types of junction members for accurately designing vehicle structures such as automobiles especially collision members from the aspect of an optimum junction structure from the view point of collision energy absorption performance and reduction in weight. SOLUTION: The impact testing apparatus 1 includes a cylindrical impactor 3; a launching device 4 for accelerating the impactor 3 to a fast speed; a launching pipe 2 for housing the impactor 3 inside and making it fly; a pipe-like guide 5 extended through the impactor 3; an output rod 7 which is extended through the guide 5 and to which a strain gauge 8 is pasted; and an impact block 6 on the terminal side of the launching pipe 2 for receiving the incoming impactor 3. A test body 10 is connected between the terminal of the output rod 7 and the impact block 3 via a connecting member. The test body 10 is loaded with a tensile load at high speed by making the impactor 3 incoming at high speed with the impact block 6 to detect distortions which have occurred in the output rod by the strain gauge 8. COPYRIGHT: (C)2007,JPO&INPIT
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