Stress intensity factors for cracked elastic beams subjected to moving loads

被引：3

作者：

Kahya, Volkan ^{[1
]}

Karaca, Sebahat ^{[1
]}

机构：

[1] Karadeniz Tech Univ, Dept Civil Engn, TR-61080 Trabzon, Turkey

来源：

JOURNAL OF THE FACULTY OF ENGINEERING AND ARCHITECTURE OF GAZI UNIVERSITY | 2018年 / 33卷 / 04期

关键词：

Moving load; crack; elastic beam; transfer matrix method; stress intensity factor; MASS; VIBRATION;

D O I：

10.17341/gazimmfd.416428

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this study, stress intensity factors at crack tip in a simply-supported elastic beam with multiple cracks subjected to moving loads is considered. Massless rotational spring is used for modelling the crack. Natural frequencies and corresponding mode shapes are obtained by the transfer matrix method. Equation of motion for the forced vibration problem is then solved numerically by the Newmark method. Considering four different damage cases, variation of the maximum deflections of the beam with crack size and location for various load speeds is investigated. Stress intensity factors at crack tips are studied in detail for load speeds, crack size and location.

引用

页码：1309 / 1319

页数：11

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