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:
Aug. 17, 2004
Filed:
Mar. 17, 2000
John W. Gillespie, Jr., Hockessin, DE (US);
Metin Tanoglu, Newark, DE (US);
University of Delaware, Newark, DE (US);
Abstract
The present invention comprises a dynamic interphase-loading apparatus and method for testing the interfacial shear strength, stress-strain response, energy absorbing capability and durability of an interphase region of a fiber/matrix composite under quasi-static to high strain rates. The apparatus provides a load to the fiber/matrix interphase under high loading rates. The apparatus includes means for continuously monitoring the load applied to the fiber/matrix composite and providing a signal representative thereof, and means for monitoring the displacement of the interphase and providing a signal representative thereof. The apparatus further includes a computer that receives the load signal and the displacement signal, and generates chemical properties of the interphase of the fiber/matrix composite.