Dynamic Stress Concentration in Strip Plate with Fillet

Autor:	Hiroyuku Takeishi, Noboru Nakayama, Masahiko Ohashi
Rok vydání:	1998
Předmět:	Materials science business.industry Mechanical Engineering Square wave Mechanics Optics Static stress General Materials Science Concentration factor Reflection coefficient Fillet (mechanics) business Strain gauge Dynamic stress Stress concentration
Zdroj:	JSME International Journal Series A. 41:326-331
ISSN:	1347-5363 1344-7912
Popis:	A method of measuring the maximum dynamic stress concentration factor αDmax in a fillet has not yet established. The reflection and transmission of stress wave during the propagation through a fillet result in complex stress states. We propose a new method for analyzing the maximum dynamic stress concentration factor αDmax in a fillet utilizing the stress concentration factor αS and the reflection coefficient A obtained by a strain gauge on the incident strip plate. In this experiment, a square wave(a stress wave with a plateau of constant stress for long duration)is used. A strain gauge measures the reflection coefficient A. The factor αDmax in the fillet is analyzed using a dynamic photoelastic method. It is confirmed that αDmax is approximated by the following equation:αexDmax=(1+A)αS. As a result, the maximum dynamic stress concentration factor is obtained experimentally using the static stress concentration factor and the reflection coefficient.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2322d851bbed8646a72bad275ce581bf https://doi.org/10.1299/jsmea.41.326 Zobrazit plný text záznamu