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:
Oct. 19, 2021
Filed:
Aug. 21, 2017
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Yasumasa Bito, Kobe, JP;
Yasuhisa Minagawa, Kobe, JP;
SUMITOMO RUBBER INDUSTRIES, LTD., Kobe, JP;
Abstract
A simulation method for analyzing a breakage of a molecular chain of a polymer material using a computer comprises: defining a polymeric material model by setting a molecular chain model in a virtual space corresponding to a portion of the polymeric material; and calculating a breaking of the molecular chain model. The calculating of the breaking comprises: a step Sof performing a molecular mechanics calculation using the polymeric material model; a step Sof performing a quantum mechanics calculation targeting on only a subset model including a particle model couple whose distance is greater than a predetermined first distance; and a step Sof dissociating the bond between the particle models in the molecular chain model which particle models correspond to the particle model couple, if the distance between the particle models is larger than a second distance, wherein the second distance is larger than the first distance and equal to a distance between the particle models at an inflection point of a bond-dissociation potential plus a value of from 1.0 to 2.5 angstrom.