Nonlinear transient analysis of FGM and FML plates under blast loads by experimental and mixed FE methods

Aksoylar, Cenk; Ömercikoğlu, Akın; Mecitoğlu, Zahit; Omurtag, Mehmet H.

doi:10.1016/j.compstruct.2011.09.008

Cited by 42 publications

(19 citation statements)

References 40 publications

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“…The nonlinear Eqs. (23) and (26) are used to investigate the nonlinear vibration and dynamic stability of imperfect FGM thick plates using the higher-order shear deformation theory.…”

Section: Governing Equationsmentioning

confidence: 99%

“…To the authors' best knowledge, there are very little researches on the problems of FGM structures subjected to blast loads. Aksoylar et al [23] studied the nonlinear transient analysis of FGM and fibre-metal laminated plates under blast loads by experimental and mixed finite element methods. Hause [24] developed the foundation of the theory of FGM plates with simply supported edges, under a Friedlander explosive air-blast within the classical plate theory.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Nonlinear dynamic response and vibration of imperfect shear deformable functionally graded plates subjected to blast and thermal loads

Nguyen

Ngo

Tran

et al. 2016

Mechanics of Advanced Materials and Structures

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Based on Reddy's higher-order shear deformation plate theory, this paper presents an analysis of the nonlinear dynamic response and vibration of imperfect functionally graded material (FGM) thick plates subjected to blast and thermal loads resting on elastic foundations. The material properties are assumed to be temperature-dependent and graded in the thickness direction according to a simple power-law distribution in terms of the volume fractions of the constituents. Numerical results for the dynamic response and vibration of the FGM plates with two cases of boundary conditions are obtained by the Galerkin method and fourth-order Runge-Kutta method. The results show the effects of geometrical parameters, material properties, imperfections, temperature increment, elastic foundations and boundary conditions on the nonlinear dynamic response and vibration of FGM plates.

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“…The nonlinear Eqs. (23) and (26) are used to investigate the nonlinear vibration and dynamic stability of imperfect FGM thick plates using the higher-order shear deformation theory.…”

Section: Governing Equationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Nonlinear dynamic response and vibration of imperfect shear deformable functionally graded plates subjected to blast and thermal loads

Nguyen

Ngo

Tran

et al. 2016

Mechanics of Advanced Materials and Structures

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“…Aksoylar vd. [12], FD fiber-metal ince FD kompozit plâkaların doğrusal olmayan dinamik davranışlarını geliştirdikleri karma sonlu elemanlar yöntemiyle sayısal ve deneysel olarak incelemişlerdir. Arslan vd.…”

Section: Introductionunclassified

BAZALT/Ni, W/Ni, VE B/Ni FONKSİYONEL DERECELENDİRİLMİŞ KOMPOZİT PLÂKALARIN DİNAMİK BASINÇ YÜKÜ ALTINDAKİ DAVRANIŞLARININ ANALİZİ

Baştürk

2019

Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi

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Fonksiyonel Derecelendirilmiş Malzemeler (FDM) diğer ileri kompozit malzemelere göre günümüzde daha önemli bir yer tutmaktadır. Bu çalışmada, yüksek sıcaklık ve basınç uygulamalarında kullanılan bazalt, tungsten (W) ve bor (B) malzemeleri ile nikel (Ni) kullanılarak oluşturulan fonksiyonel derecelendirilmiş plâkaların ani basınç yükleri altındaki lineer olmayan dinamik davranışları modellenmiş ve detaylı analizleri yapılmıştır. Fonksiyonel derecelendirilmiş malzemelerin modellenmesi için Homojen Katmanlı Model (HKM) ve Sürekli Model (SM) yaklaşımları kullanılmıştır. Ani basınç yükü olarak ise Üstel Basınç Yükü Modeli uygulanmıştır. Yapılan detaylı analizler sonucunda W/Ni kompozit plâkaların daha düşük değerde genlik ve titreşim frekansı davranışı gösterdiği, bunun yanında farklı modelleme yöntemleri ve n parametresinin farklı değerlerinin de fonksiyonel derecelendirilmiş kompozit plâkaların dinamik davranışında etkili olduğu olduğu görülmüştür.

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“…The effect of damping on dynamic behavior of FGMs has been rarely considered in the investigations [16,17]. Moreover, no assessment has been conducted on the effect of damping on DSIFs in FGMs.…”

Section: Introductionmentioning

confidence: 99%

The effect of damping on dynamic stress intensity factors in functionally graded materials

Ghajar¹,

Peyman²

2016

J. vibroeng.

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Functionally Graded Materials (FGMs) are regarded as one of the most promising candidates for future advanced composites in many engineering applications. They can be classified as advanced materials characterized by variation in properties as the dimension varies. Since fracture is a key failure mode of FGMs, successful application of these materials depends on the understanding of their fracture mechanics. In addition, the stresses and displacements caused by dynamic loading can greatly differ from those associated with the corresponding static loading. This research focuses on obtaining Dynamic Stress Intensity Factors (DSIFs) in FGMs using displacement extrapolation method, considering the effect of damping. ABAQUS finite element package is applied to calculate displacement fields in FGMs. Accordingly, a User Material subroutine (UMAT) is written for implementing the continuous variation of material properties, and Rayleigh damping in the numerical analyses. In this research, the variations in properties of FGMs are considered exponentially; and the obtained results are compared with those presented in the technical literature. Then, the effects of different damping ratios on the DSIFs are investigated. According to the obtained results, damping has a significant effect on the DSIFs in FGMs. Therefore, ignoring this issue causes considerable errors in the results.

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Nonlinear transient analysis of FGM and FML plates under blast loads by experimental and mixed FE methods

Cited by 42 publications

References 40 publications

Nonlinear dynamic response and vibration of imperfect shear deformable functionally graded plates subjected to blast and thermal loads

Nonlinear dynamic response and vibration of imperfect shear deformable functionally graded plates subjected to blast and thermal loads

BAZALT/Ni, W/Ni, VE B/Ni FONKSİYONEL DERECELENDİRİLMİŞ KOMPOZİT PLÂKALARIN DİNAMİK BASINÇ YÜKÜ ALTINDAKİ DAVRANIŞLARININ ANALİZİ

The effect of damping on dynamic stress intensity factors in functionally graded materials

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