INVESTIGATION OF RESIDUAL STRESSES IN A PLATE SUBJECTED TO COMBINED LOAD USING CRACK METHOD | ||
| International Conference on Aerospace Sciences and Aviation Technology | ||
| Article 20, Volume 5, ASAT CONFERENCE 4 - 6 May 1993, CAIRO, May 1993, Pages 243-251 PDF (1.47 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/asat.1993.25626 | ||
| Authors | ||
| S. A. KHALIL1; N. M. ASHOUR1; M. M. EL SAYED2 | ||
| 1Assist. prof., | ||
| 2Assoc. prof., Faculty of Eng. & Tech. Mech. Design Dept., Mataria, Helwan University, Cairo, Egypt. | ||
| Abstract | ||
| The problem of residual stresses in a structural member may play an important role in determining the oyerall actual stress distribution. A theoretical and experimental inves-tigation of residual stresses in a plate subjected to com-bined tensile and bending stresses are carried out in this paper. The basic concept adopted in the investigation is to apply known stresses on the loaded plate and then release a certian value of these stresses by making two single edge cracks. Known stresses are considered as residual stresses. The released strain on the relieved portion was measured using strain gages. A comparison between the results obtained using two single edge cracks method and two double edge cracks method is presented for the case of a plate under ten-sion. A good agreement between theoretical and experimental results is obtained for the plate subjected to combined load. | ||
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