Creep and rupture behaviour in fibre bundles

✍ Scribed by Jonas Neumeister

• Book ID: 103072315
• Publisher: Elsevier Science
• Year: 1990
• Tongue: English
• Weight: 985 KB
• Volume: 35
• Category: Article
• ISSN: 0013-7944
• DOI: 10.1016/0013-7944(90)90136-5

✦ Synopsis

The time dependent rupture of a fibre bundle under constant tensile load and with scatter in fibm stiffness and fibre strength is analysed using a general formulation of the creep law. The total rupture time is divided into an incubation time, with all fibres intact, and a failure propagation time where fibres fail progressively. Governing equations are given for both time intervals. It is shown that the failure propagation time interval is independent of the load if no spatial stress redistribution occurs and all fibres remain intact upon loading. For a bundle consisting of originally uniform fibres where a fraction is aIIlicted with a certain defect, the time intervals are calculated assuming Norton's non linear creep law.