Experimental study on the fracture capacity and fatigue life reduction of the tensioned cracked plate due to the local buckling

Seif, A.E.; Kabir, Mohammad Zaman

doi:10.1016/j.engfracmech.2017.01.023

Cited by 10 publications

(3 citation statements)

References 16 publications

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“…ere are several methods to control the crack growth under static or fatigue loading and the crack growth can be restrained by replacement of injured parts, decreasing of possible loads, or decreasing of crack growth rate to acceptable level [7]. Replacement of the injured parts is usually costly [8]. Also decreasing of possible loads is sometimes impermissible and can have e ect on the correct function of parts [9].…”

Section: Introductionmentioning

confidence: 99%

Comprehensive Structural Assessment of a Perforated Plate in the Edge and Central Crack

Abadi

Nazari

Bazvandi

2022

Shock and Vibration

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Injury domain method does not let the cracks close to the critical level to start growing and lead to the critical length before the time of periodic visits. Until now, calculation method of the tension in a perforated plate has been assessed in two- or three-dimensional mode by considering the special opening (holes with different geometry). But, the tension calculation in a plate included opening with edge crack presence in three-dimensional mode has not been studied. So, in this study, in addition to the assessment of this mode, calculation method of the tension in the plates including different opening will be assessed. Generally, when the object endures the tensions for a long time, the geometric deformation will be occurred. Used plates in this study are made of isotropic materials. In these materials, when the force is applied, they show the same function in any direction and the direction of applying force has any on effect their treatment. For analyzing the data, the Abaqus software is used. The results of the research show that the kind of the boundary conditions has effect on the value of critical load in the tension and kind of created tension. In the joint-joint boundary conditions, tension critical load increases with length-to-width ratio increase, and local tension occurred in the higher penetration ratio. However, in the joint-open boundary conditions, by increasing the length-to-width ratio, the tension critical load is decreased and in often cases, the tensions are kind of general. According to this, the plates including cavity with bigger dimensions are subjected to local tension in smaller ratios of yielding dimension.

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Section: Introductionmentioning

confidence: 99%

Comprehensive Structural Assessment of a Perforated Plate in the Edge and Central Crack

Abadi

Nazari

Bazvandi

2022

Shock and Vibration

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“…Yük ve hasar modları yama tipine göre kıyaslandığında yapısal simetrinin yanal esnekliği artırdığını gözlemlemişlerdir. Seif ve Kabir [8] özel bir bağlama aparatı kullanarak içerisinde çatlak bulunan çeliğe simetrik ve simetrik olmayan burkulma testleri yapmışlardır. Kırılma kapasitesi ve yorulma ömür etkisini deneysel ve sayısal olarak incelemişlerdir.…”

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Kompozit Yama ile Tamir Edilmiş V-Çentikli Levhaların Burkulma Davranışı: Üç Boyutlu Sayısal Yaklaşım

Saylık

Kaman

2019

Fırat Üniversitesi Mühendislik Bilimleri Dergisi

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Bu çalışmada, kompozit yama ile tamir edilmiş beş farklı V-çentik boyutuna sahip alüminyum ve kompozit levhaların burkulma davranışı sayısal olarak incelenmiştir. Çentikli levhalara tek taraflı ve çift taraflı yama olmak üzere iki farklı tipte tamir işlemi uygulanmıştır. Yama malzemesi olarak; aynı takviye açısına sahip dört tabaka çapraz örgü karbon fiber ve epoksi yapıştırıcıdan oluşan tabakalı kompozit seçilmiştir. Levha malzemesi olarak ise alüminyum ve aynı yama malzemesinden üretilmiş kompozit kullanılmıştır. Üç boyutlu olarak hazırlanan sonlu eleman modeli kullanılarak tamirli kompozit levhalarda kritik burkulma yükleri hesaplanmıştır. Levhaların çentik boyut değişimine göre kritik burkulma yük analizleri tek ve çift taraflı tamir yöntemi için yapılmıştır. Çentik derinlik artışının, genişliğe göre burkulma yükü üzerinde daha etkili bir parametre olduğu görülmüştür. Ayrıca kompozit levha ya da yamadaki fiber takviye açılarının artışı levha mukavemetini düşürmüştür.

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“…In this specific method, the proposed function is generally dependent on the geometry of the assumed problem. In the literature, the minimum potential energy method could be implemented for composite materials using a semi-analytical method (Weertman et al 1996, Kabir et al 2010, Seif et al 2016, Seif et al 2017. Where in these cases, the elastic field for an assumed media is considered under the applied mechanical loading.…”

Section: Introductionmentioning

confidence: 99%

Implementing an Accurate Generalized Gaussian Quadrature Solution to Find the Elastic Field in a Homogeneous Anisotropic Media

Kabir¹,

Matikolaei²

2017

JSSCM

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In the current study, the elastic field in an anisotropic elastic media is determined by implementing a general semi-analytical method. In this specific methodology, the displacement field is computed as a sum of finite functions with unknown coefficients. These aforementioned functions exactly satisfy both the homogeneous and inhomogeneous boundary conditions in the proposed media. It is worth mentioning that the unknown coefficients are determined by implementing the principle of minimum potential energy. The numerical integration is done by employing the Generalized Gaussian Quadrature rule. Furthermore, and with the aid of the calculated unknown coefficients, the displacement fields as well as the other parameters of the elastic field are obtainable. Finally, the comparison of the previous analytical method with the current semi-analytical approach proposes the efficacy of the present methodology.

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Experimental study on the fracture capacity and fatigue life reduction of the tensioned cracked plate due to the local buckling

Cited by 10 publications

References 16 publications

Comprehensive Structural Assessment of a Perforated Plate in the Edge and Central Crack

Comprehensive Structural Assessment of a Perforated Plate in the Edge and Central Crack

Kompozit Yama ile Tamir Edilmiş V-Çentikli Levhaların Burkulma Davranışı: Üç Boyutlu Sayısal Yaklaşım

Implementing an Accurate Generalized Gaussian Quadrature Solution to Find the Elastic Field in a Homogeneous Anisotropic Media

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