Residual Stress Measurement for a Finite Plate Under Tension Using Two Double Edge Cracks Method

Sayed, M. M. El; Khalil, Said A.; Ashour, N. M.

doi:10.21608/asat.1991.25682

Cited by 1 publication

(4 citation statements)

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“…The effect of crack depth and location in measuring residual stresses were considered. Results reported in [3] showed generally a good agreement between numerical and experimental estimates of the strain relaxation.…”

Section: Introductionsupporting

confidence: 53%

“…It is found that, the maximum deviation between theoretical and experimental results is about 20%. This deviation value is due to reason which were discussed (3]. The theoretical values of strain relaxation calculated by F.E.…”

Section: Resultsmentioning

confidence: 88%

“…Line oa presents the loading stage, line ab presents relaxation stage due to making single crack and finally line be presents unloading stage. The strain relaxation was experimentally calculated as given in [3]. SM…”

Section: Experimental Workmentioning

confidence: 99%

“…Actual strain relaxation of the plate can also be measured using four strain gages. A comparison has been done between the results obtained for the plate under pure tension with two double edge cracks [3] and the one investigated here.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of Residual Stresses in a Plate Subjected to Combined Load Using Crack Method

Khalil

Ashour

Sayed

1993

International Conference on Aerospace Sciences and Aviation Tec

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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 investigation of residual stresses in a plate subjected to combined 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 tension. A good agreement between theoretical and experimental results is obtained for the plate subjected to combined load.

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Section: Introductionsupporting

confidence: 53%

Section: Resultsmentioning

confidence: 88%

Section: Experimental Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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