The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 03, 2015
Filed:
Sep. 07, 2011
Hiroki Nakatsuchi, Yokohama, JP;
Tsutomu Kono, Kawasaki, JP;
Keiji Suzuki, Hitachi, JP;
Mitsuru Onoda, Takahagi, JP;
Kazuo Goto, Mito, JP;
Yasuaki Kageyama, Hitachi, JP;
Takahiro Sato, Hitachi, JP;
Hiroki Nakatsuchi, Yokohama, JP;
Tsutomu Kono, Kawasaki, JP;
Keiji Suzuki, Hitachi, JP;
Mitsuru Onoda, Takahagi, JP;
Kazuo Goto, Mito, JP;
Yasuaki Kageyama, Hitachi, JP;
Takahiro Sato, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The present invention provides a method for analyzing growth of void of resin in a porous material which comprising the steps of inputting data of the shape of a porous material filled with a resin material, and dividing the shape of the porous material into three-dimensional solid elements; inputting physical properties of the porous material, and boundary conditions including a pressure that is applied to the porous material; obtaining a resin-density distribution in the porous material through fluid analysis using a database obtained by experimentally measuring in advance a temporal change in a volume of gas generated from the resin material and porous material during heating, changes in a compressive force and compressive displacement respectively occurring when the porous material impregnated with the resin is compressed, and a change in a flow resistance of the resin; and comprehensively grasping production, growth, and distribution of voids deriving from gas generation.