STRENGTH TESTING APPARATUS OF AIRCRAFT AND STRENGTH TESTING METHOD THEREOF

PROBLEM TO BE SOLVED: To provide a strength testing apparatus of an aircraft that can generate a desired stress by safely, rapidly and surely applying an internal pressure by use of a curved barrel, and further can surely observe occurring damage.SOLUTION: A testing apparatus 1 applying an internal pressure equivalent to a pressure difference between an outside of a test object part and an inside thereof to a curved barrel 10 corresponding to the test object part of a fuselage of an aircraft comprises: a pressure container 22 that forms a cavity 23 between the barrel 10 and the pressure container; and a rod 25 that restrains the barrel 10 against the internal pressure. The pressure container 22 is configured to face the outside of the barrel 10, and an inside of the cavity 23 is decompressed to thereby have the internal pressure applied to the barrel 10. 【課題】湾曲した供試体を用いて、安全かつ迅速に、しかも内圧を確実に印加して所望の応力を生じさせることができ、さらに、発生した損傷を確実に観察することができる航空機の強度試験装置を提供すること。【解決手段】航空機の胴体の試験対象部位に対応する湾曲した供試体１０に、試験対象部位の外側と内側との圧力差に相当する内圧を印加する試験装置１は、供試体１０との間にキャビティ２３を形成する圧力容器２２と、内圧に対して供試体１０を拘束するロッド２５とを備える。圧力容器２２は、供試体１０の外側に対向する。キャビティ２３内が減圧されることで供試体１０に内圧が印加される。【選択図】図３