4 research outputs found

    Investigation of stresses occurring in rotating cylinders made of Boron carbide (B4C) and Silicon carbide (SIC) materials by using finite element method

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    This paper focuses on some mathematical and numerical aspects of elastic stress. The distribution of elastic stress in rotating cylinders made of Boron carbide (B4C) and Silicon carbide (SIC) materials is analyzed analytically. Boron carbide, which will be Decelerated for projects in the defense industry and automotive fields, is among the precious metals in the world. Silicon carbide is one of the most widely used structural ceramics. silicon carbide is one of the most durable ceramic materials. Boron carbide (B4C) and Silicon carbide (SIC) are used in aircraft industry, unmanned aerial vehicles, electric vehicles. The stress value obtained at the end of the analysis was compared with the ANSYS 2023 R1 program. The results obtained are close to each other. For example, if the results obtained are compared with each other, the tangential stress obtained in the boron rib material is about 35\% higher than that of silicon carbide. The novelty and importance of the research are quite high. Rotating cylinders determined materials are used in aircraft, unmanned aerial vehicles. It is intended to share the results obtained when using two materials with high strength with the literature. The radial stresses are continuously zero at the innermost and outermost parts. Tangential stresses are more than radial stresses. It has been observed that the tangential stresses obtained in the ANSYS 2023 R1 program are higher than the radial stress. Within the scope of the study; the Von Mises yield criterion is taken into account in the plane shape change reference. The findings obtained at the end of the study are shared in graphs. At the end of the study, it is determined that the stresses occurring in the cylinder with silicon carbide (SIC) material were more than Boron carbide (B4C). Moreover, the results are compared among themselves

    Investigation of stresses occurring in rotating cylinders made of Boron carbide (B4C) and Silicon carbide (SIC) materials by using finite element method

    Get PDF
    This paper focuses on some mathematical and numerical aspects of elastic stress. The distribution of elastic stress in rotating cylinders made of Boron carbide (B4C) and Silicon carbide (SIC) materials is analyzed analytically. Boron carbide, which will be Decelerated for projects in the defense industry and automotive fields, is among the precious metals in the world. Silicon carbide is one of the most widely used structural ceramics. silicon carbide is one of the most durable ceramic materials. Boron carbide (B4C) and Silicon carbide (SIC) are used in aircraft industry, unmanned aerial vehicles, electric vehicles. The stress value obtained at the end of the analysis was compared with the ANSYS 2023 R1 program. The results obtained are close to each other. For example, if the results obtained are compared with each other, the tangential stress obtained in the boron rib material is about 35\% higher than that of silicon carbide. The novelty and importance of the research are quite high. Rotating cylinders determined materials are used in aircraft, unmanned aerial vehicles. It is intended to share the results obtained when using two materials with high strength with the literature. The radial stresses are continuously zero at the innermost and outermost parts. Tangential stresses are more than radial stresses. It has been observed that the tangential stresses obtained in the ANSYS 2023 R1 program are higher than the radial stress. Within the scope of the study; the Von Mises yield criterion is taken into account in the plane shape change reference. The findings obtained at the end of the study are shared in graphs. At the end of the study, it is determined that the stresses occurring in the cylinder with silicon carbide (SIC) material were more than Boron carbide (B4C). Moreover, the results are compared among themselves

    Hibrit Kompozit Kirişlerin Yanal Burkulma Davranışlarına Soğuk Ortamın Etkisi

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    Bu çalışmada, hibrit kompozit kirişlerin yanal burkulma davranışları üzerine soğuk ortamın ve farklı fiber kombinasyonlarının etkileri deneysel olarak araştırılmıştır. Yanal burkulma deneyleri için, karbon, E-cam ve aramid fiberlerin farklı kombinasyonları ve matris olarak da Araldite LY1564/Aradur 3486 reçine sistemi kullanılarak 12 tabakalı hibrit kompozit plakalar üretilmiştir. Hibrit kompozit numuneler 90 gün oda koşulları, 90 gün soğutucu ve 150 gün soğutucuda bekletildikten sonra yanal burkulma deneyine tabi tutulmuşlardır. Deneyler sonucunda elde edilen veriler doğrultusunda tabakalı hibrit kompozit kirişlerin yanal burkulma davranışları incelenmiştir. En yüksek kritik yanal burkulma yükü [(30/-60)3]s istifleme dizilimine sahip CAG30 numunelerinde, en düşük kritik yanal burkulma yükü ise [(0/90)3]s istifleme dizilimine sahip GAC numunelerinde meydana gelmiştir. Çalışma sonucunda, soğuk ortamda bekletilen numunelerin kritik yanal burkulma yüklerinin oda koşullarında bekletilen numunelerin kritik yanal burkulma yüklerine göre arttığı belirlenmiştir.</p

    Hibrit Kompozit Kirişlerin Yanal Burkulma Davranışlarına Soğuk Ortamın Etkisi

    No full text
    Bu çalışmada, hibrit kompozit kirişlerin yanal burkulma davranışları üzerine soğuk ortamın ve farklı fiber kombinasyonlarının etkileri deneysel olarak araştırılmıştır. Yanal burkulma deneyleri için, karbon, E-cam ve aramid fiberlerin farklı kombinasyonları ve matris olarak da Araldite LY1564/Aradur 3486 reçine sistemi kullanılarak 12 tabakalı hibrit kompozit plakalar üretilmiştir. Hibrit kompozit numuneler 90 gün oda koşulları, 90 gün soğutucu ve 150 gün soğutucuda bekletildikten sonra yanal burkulma deneyine tabi tutulmuşlardır. Deneyler sonucunda elde edilen veriler doğrultusunda tabakalı hibrit kompozit kirişlerin yanal burkulma davranışları incelenmiştir. En yüksek kritik yanal burkulma yükü [(30/-60)3]s istifleme dizilimine sahip CAG30 numunelerinde, en düşük kritik yanal burkulma yükü ise [(0/90)3]s istifleme dizilimine sahip GAC numunelerinde meydana gelmiştir. Çalışma sonucunda, soğuk ortamda bekletilen numunelerin kritik yanal burkulma yüklerinin oda koşullarında bekletilen numunelerin kritik yanal burkulma yüklerine göre arttığı belirlenmiştir
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