STRESS ANALYSIS OF SYMMETRIC COMPOSITE LAMINATES WITH QUASI-RECTANGULAR HOLE SUBJECTED TO IN-PLANE LOADING

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JAFARI MOHAMMAD; MOSHIRI AVAL BEHZAD

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Journal: Modares Mechanical Engineering Year:2015 | Volume:14 | Issue:15 Page(s): 395-404

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Title

STRESS ANALYSIS OF SYMMETRIC COMPOSITE LAMINATES WITH QUASI-RECTANGULAR HOLE SUBJECTED TO IN-PLANE LOADING

Author(s)

JAFARI MOHAMMAD | MOSHIRI AVAL BEHZAD | Issue Writer Certificate

Keywords

CONFORMAL MAPPINGQ2

ANALYTICAL SOLUTIONQ2

SYMMETRIC COMPOSITE LAMINATESQ2

QUASI-RECTANGULAR HOLEQ2

Abstract

In this paper, by expanding the Lekhnitiskii’s solution the stress distribution around QUASI-RECTANGULAR HOLE has been studied. Lekhnitiskii used complex variables analytic method for stress analysis of anisotropic plates with circular and elliptical hole. In order to extend the Lekhnitiskii’s analytical method for stress analysis of perforated symmetric laminates with non-circular holes, by means of CONFORMAL MAPPING, the area external to the hole can be represented by the area outside the unit circle. In this paper an attempt has been made to study the effect of different parameters such as aspect ratio, stacking sequence, rotation angle of hole, bluntness and load angle on stress distribution around QUASI-RECTANGULAR HOLE. The finite element method has been used to check the accuracy of analytical results. The analytical results are in good agreement with the numerical results. The results presented herein, indicate that the presented method can be used to accurately determine the stresses and stress concentration in composite plates with special shape cutouts. The results obtained clearly demonstrate the effect of these parameters on maximum stresses in perforated plates subjected to uni-axial tensile load. Appropriate selection of bluntness and rotation angle of hole can decrease stress concentration.

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APA: Copy

JAFARI, MOHAMMAD, & MOSHIRI AVAL, BEHZAD. (2015). STRESS ANALYSIS OF SYMMETRIC COMPOSITE LAMINATES WITH QUASI-RECTANGULAR HOLE SUBJECTED TO IN-PLANE LOADING. MODARES MECHANICAL ENGINEERING, 14(15), 395-404. SID. https://sid.ir/paper/177697/en

Vancouver: Copy

JAFARI MOHAMMAD, MOSHIRI AVAL BEHZAD. STRESS ANALYSIS OF SYMMETRIC COMPOSITE LAMINATES WITH QUASI-RECTANGULAR HOLE SUBJECTED TO IN-PLANE LOADING. MODARES MECHANICAL ENGINEERING[Internet]. 2015;14(15):395-404. Available from: https://sid.ir/paper/177697/en

IEEE: Copy

MOHAMMAD JAFARI, and BEHZAD MOSHIRI AVAL, “STRESS ANALYSIS OF SYMMETRIC COMPOSITE LAMINATES WITH QUASI-RECTANGULAR HOLE SUBJECTED TO IN-PLANE LOADING,” MODARES MECHANICAL ENGINEERING, vol. 14, no. 15, pp. 395–404, 2015, [Online]. Available: https://sid.ir/paper/177697/en

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