DETERMINATION OF A GENERAL CLOSED FORM RELATION FOR CRACK DENSITY AND INDUCED DELAMINATION EVOLUTION IN CROSS PLY LAMINATES UNDER UNIAXIAL LOADING CONDITION BASED ON AN EXTENDED SHEAR LAG MODEL

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FARROKHABADI AMIN; AGHAEBRAHIMI SAMANI MARYAM

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Journal: Modares Mechanical Engineering Year:2015 | Volume:15 | Issue:1 Page(s): 361-370

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Title

DETERMINATION OF A GENERAL CLOSED FORM RELATION FOR CRACK DENSITY AND INDUCED DELAMINATION EVOLUTION IN CROSS PLY LAMINATES UNDER UNIAXIAL LOADING CONDITION BASED ON AN EXTENDED SHEAR LAG MODEL

Author(s)

FARROKHABADI AMIN | AGHAEBRAHIMI SAMANI MARYAM | Issue Writer Certificate

Keywords

SHEAR LAG MODELQ2

MATRIX CRACKINGQ2

DELAMINATIONQ2

MAX STRESSQ2

STRAIN ENERGY RELEASE RATEQ2

Abstract

In the present study, using shear lag parameter in an extended SHEAR LAG MODEL, by considering the effects of out of plane shear stresses, the stress fields distribution as well as strain fields and displacement distributions will be obtained for a typical [0m/90n] s cross ply composite laminate containing a specified MATRIX CRACKING density. Then, the stiffness degradation due to existence of MATRIX CRACKING in these cross-ply composite laminates will be evaluated and specific damage parameters that affect the stiffness matrix of composite ply will be defined. Furthermore, using the concept of fracture mechanics by applying two different criteria including the maximum stress and STRAIN ENERGY RELEASE RATE, the MATRIX CRACKING initiation and evolution as well as induced DELAMINATION propagation will be studied. Finally, a closed form relation will be presented which predicts the evolution of MATRIX CRACKING under uniaxial loading conditions in cross-ply composite laminates. At last, the obtained results by the present study will be compared with available semianalytical and experimental results. The obtained results reveal that the proposed closed form relations by the authors have less difference with experimental results in comparison with the previous semi analytic results.

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APA: Copy

FARROKHABADI, AMIN, & AGHAEBRAHIMI SAMANI, MARYAM. (2015). DETERMINATION OF A GENERAL CLOSED FORM RELATION FOR CRACK DENSITY AND INDUCED DELAMINATION EVOLUTION IN CROSS PLY LAMINATES UNDER UNIAXIAL LOADING CONDITION BASED ON AN EXTENDED SHEAR LAG MODEL . MODARES MECHANICAL ENGINEERING, 15(1), 361-370. SID. https://sid.ir/paper/179288/en

Vancouver: Copy

FARROKHABADI AMIN, AGHAEBRAHIMI SAMANI MARYAM. DETERMINATION OF A GENERAL CLOSED FORM RELATION FOR CRACK DENSITY AND INDUCED DELAMINATION EVOLUTION IN CROSS PLY LAMINATES UNDER UNIAXIAL LOADING CONDITION BASED ON AN EXTENDED SHEAR LAG MODEL . MODARES MECHANICAL ENGINEERING[Internet]. 2015;15(1):361-370. Available from: https://sid.ir/paper/179288/en

IEEE: Copy

AMIN FARROKHABADI, and MARYAM AGHAEBRAHIMI SAMANI, “DETERMINATION OF A GENERAL CLOSED FORM RELATION FOR CRACK DENSITY AND INDUCED DELAMINATION EVOLUTION IN CROSS PLY LAMINATES UNDER UNIAXIAL LOADING CONDITION BASED ON AN EXTENDED SHEAR LAG MODEL ,” MODARES MECHANICAL ENGINEERING, vol. 15, no. 1, pp. 361–370, 2015, [Online]. Available: https://sid.ir/paper/179288/en

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