Mitsubishi Heavy Industries Limited

Ripplex Inc.

Tomohisa Ota

Hiroyuki Fujiwara

Naoki Ogawa

Tomoyuki Inoue

Ryuichi Narita

Norihiko Naono

Nobutaka Nakajima

Masanori Toyoda

Takaharu Maeguchi

Masahiko Toyoda

Hiroshi Kanasaki

Masahito Matsubara

Takao Tsuruta

Takafumi Hiro

Kosuke Kitamura

A test piece preparation step of preparing a test piece () including a welding structure in which a welding material formed of an austenitic alloy is welded to a member formed of low-alloy steel or low-carbon steel, a hydrogen supply step of supplying hydrogen to the test piece (), and a characteristic stress acquisition step of applying a load (F) to the test piece () to which hydrogen was supplied and acquiring a characteristic stress showing material mechanical properties of the test piece () are executed.

Method for determining characteristic stress of welding structure, method for designing welded structure, and method for manufacturing welded structure

A system having a server and an information terminal of A which records A's personal information Pa and B's personal information Pb', an information terminal of B which records A's personal information Pa and B's personal information Pb&#x2032;. B's information terminal generates a calculation result F(Pa&#x2032;,Pb) via the calculation of Pa&#x2032; and Pb, sends F(Pa&#x2032;,Pb) to a server. The server correlates B's identification tag with F(Pa&#x2032;,Pb) and records it. A's information terminal forms F(Pa,Pb&#x2032;) calculated via the calculation of Pb&#x2032; and Pa and sends F(Pa,Pb&#x2032;) to the server. The server searches for a calculation result which matches F(Pa,Pb&#x2032;) and by detecting a match between F(Pa&#x2032;,Pb) and F(Pa,Pb&#x2032;) detects B's identification tag which has been correlated with F(Pa&#x2032;,Pb) and detected B's identification tag is sent to A's information terminal.

System, server, information terminal operating system, middleware, information communication device, certification method, and system and application software

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Tokyo, Japan

Tomohisa Ota