Soyarslan, Celal

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Profile URL
https://hdl.handle.net/20.500.14411/7838
Name Variants
Soyarslan, C.
Soyarslan, Celal
C., Soyarslan
Celal, Soyarslan
C.,Soyarslan
S., Celal
S.,Celal
Soyarslan,C.
Job Title
Öğretim Görevlisi
Email Address
Main Affiliation
Department of Mechatronics Engineering
Status
Former Staff
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ORCID ID
Scopus Author ID
Turkish CoHE Profile ID
Google Scholar ID
WoS Researcher ID

Sustainable Development Goals

NO POVERTY1
NO POVERTY
0
Research Products
ZERO HUNGER2
ZERO HUNGER
0
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GOOD HEALTH AND WELL-BEING3
GOOD HEALTH AND WELL-BEING
0
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QUALITY EDUCATION4
QUALITY EDUCATION
0
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GENDER EQUALITY5
GENDER EQUALITY
0
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CLEAN WATER AND SANITATION6
CLEAN WATER AND SANITATION
0
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AFFORDABLE AND CLEAN ENERGY7
AFFORDABLE AND CLEAN ENERGY
0
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DECENT WORK AND ECONOMIC GROWTH8
DECENT WORK AND ECONOMIC GROWTH
0
Research Products
INDUSTRY, INNOVATION AND INFRASTRUCTURE9
INDUSTRY, INNOVATION AND INFRASTRUCTURE
1
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REDUCED INEQUALITIES10
REDUCED INEQUALITIES
0
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SUSTAINABLE CITIES AND COMMUNITIES11
SUSTAINABLE CITIES AND COMMUNITIES
0
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RESPONSIBLE CONSUMPTION AND PRODUCTION12
RESPONSIBLE CONSUMPTION AND PRODUCTION
0
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CLIMATE ACTION13
CLIMATE ACTION
0
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LIFE BELOW WATER14
LIFE BELOW WATER
0
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LIFE ON LAND15
LIFE ON LAND
0
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PEACE, JUSTICE AND STRONG INSTITUTIONS16
PEACE, JUSTICE AND STRONG INSTITUTIONS
0
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PARTNERSHIPS FOR THE GOALS17
PARTNERSHIPS FOR THE GOALS
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This researcher does not have a Scopus ID.
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Scholarly Output

10

Articles

7

Views / Downloads

16/10

Supervised MSc Theses

2

Supervised PhD Theses

0

WoS Citation Count

93

Scopus Citation Count

75

Patents

0

Projects

0

WoS Citations per Publication

9.30

Scopus Citations per Publication

7.50

Open Access Source

2

Supervised Theses

2

JournalCount
9th International Conference on Technology of Plasticity, ICTP 2008 -- 9th International Conference on Technology of Plasticity, ICTP 2008 -- 7 September 2008 through 11 September 2008 -- Gyeongju -- 1047661
Computer Methods in Biomechanics and Biomedical Engineering1
Finite Elements in Analysis and Design1
Journal of Materials Research1
Makina Tasarım ve Imalat Dergisi1
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Scholarly Output Search Results

Now showing 1 - 4 of 4
  • Thumbnail Image
    Article
    Citation - WoS: 17
    Citation - Scopus: 20
    Prevention of Internal Cracks in Forward Extrusion by Means of Counter Pressure: a Numerical Treatise
    (verlag Stahleisen Mbh, 2009) Soyarslan, C.; Tekkaya, A. E.
    In the context of forward bulk extrusion, where product defects are frequently observed, the effect of counter pressure on damage accumulation materializing a Continuum Damage Mechanics (CDM) approach is presented. A Lemaitre variant damage model accounting for unilateral damage evolution coupled with a multiplicative finite plasticity is utilized for this purpose. After a presentation of the crack governing mechanism, it is demonstrated that application of counter pressure introduces a marked decrease in the central damage accumulation, which in turn increases the formability of the material through keeping the tensile triaxiality in tolerable limits. It is also shown that, for a crack involving process, through systematic increase of the counter pressure, the crack sizes diminish; and at a certain level of counter pressure chevron cracks can be completely avoided.
  • Thumbnail Image
    Article
    Citation - WoS: 39
    Citation - Scopus: 44
    Application of Continuum Damage Mechanics in Discontinuous Crack Formation: Forward Extrusion Chevron
    (Wiley-v C H verlag Gmbh, 2008) Soyarslan, Celal; Tekkaya, A. Erman; Akyuz, Ugurhan
    Materializing Continuum Damage Mechanics (CDM), numerical modeling of discrete internal cracks, namely central bursts, in direct forward extrusion process is presented. Accordingly, in a thermodynamically consistent setting, a local Lemaitre variant damage model with quasi-unilateral evolution is coupled with hyperelastic-plasticity. The formulations are constructed in the principal axes where simultaneous local integration schemes are efficiently developed. To this end, the framework is implemented as ABAQUS/VUMAT subroutine to be used in an explicit FE solution scheme, and utilized in direct forward extrusion simulations for bearing steel, 100Cr6. Discontinuous cracks are obtained with the element deletion procedure, where the elements reaching the critical damage value are removed from the mesh. The periodicity of the cracks shows well accordance with the experimental facts. The investigations reveal that, application of the quasi-unilateral conditions together with the crack closure parameter has an indispensable effect on the damage accumulation zones by determining their internal or superficial character. (C) 2008 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
  • Thumbnail Image
    Conference Object
    Citation - Scopus: 1
    Analysis of Damage in Metal Forming
    (Hanrimwon Publishing Co., 2008) Soyarslan,C.; Erman Tekkaya,A.
    Investigation of central burst formation in direct extrusion is presented with experimental and numerical studies. On the experimental side, selecting certain unfavorable die angles and reduction ratios from the Chrysler processing standard for chevron-free extrusions curve [1], a set of extrusion tests are performed. Accordingly, chevrons are produced in the first and second pass for 100Cr6 and Cf53, respectively. On the numerical side, a multiplicative finite plasticity framework is coupled with a Lemaitre variant Continuum Damage Mechanics (CDM) model giving account for the crack closure effect and implemented as ABAQUS/VUMAT subroutine. Materializing an explicit finite element scheme, the effects of main process parameters, such as friction, semi-cone angle and reduction ratio on damage accumulation zones and intensities are studied. It is shown that, for the identical geometries, with an appropriately selected crack closure parameter and an element deletion procedure, the discrete periodic cracks can be captured, which are in correlation with the conducted experimental outputs.
  • Thumbnail Image
    Article
    Soğuk Dövmede Sürekli Ortamlar Hasar Mekaniği (sohm) Uygulamaları: Bölüm Iı-ekstrüzyonda V-şeklindeki Merkezi Kırık Oluşumunun Önlenmesi
    (2008) Soyarslan, C.; Tekkaya, A.e.; Akyüz, U.
    Çalışmanın bu kısmında, soğuk ileriye çubuk akıtma işleminde görülen merkezi kırıkların, uygun işlem parametrelerinin belirlenmesi ile önlenmesine yönelik, SOHM'ne dayanan sayısal çalışmalara yer verilmiştir. Kırık kapanma katsayısı, pekleşme üstel fonksiyon katsayısı, sürtünme, kalıp açısı ve alan indirim oranı, uygulanan ters basınç değeri gibi parametrelerin merkezi hasar birikimine tesiri, kapsamlı \"bir biçimde incelenmiştir. Gösterilmiştir ki, kalıp açısı-alan indirim oranı uzayını tarayan bir grup sayısal analizle, işlemin hatasız gerçekleşeceği sınır geometri değerlerinin ekonomik olarak temini mümkündür. Önerilen sayısal yöntemin çekici yönlerinden biri de, farklı işlem koşullarını aynı sistematik içerisinde kapsayabilecek genellikte olmasıdır. Buna örnek olarak işlem tasarımına eklenen ters basınç uygulamalarının hasar birikimine etkisi sayısal olarak modellenmiş, uygun karşı basınç değerlerinde iç kırıkların engellenebileceği gösterilmiştir.