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            <front>

                <journal-meta>
                                                                <journal-id>saujs</journal-id>
            <journal-title-group>
                                                                                    <journal-title>Sakarya University Journal of Science</journal-title>
            </journal-title-group>
                                        <issn pub-type="epub">2147-835X</issn>
                                                                                            <publisher>
                    <publisher-name>Sakarya University</publisher-name>
                </publisher>
                    </journal-meta>
                <article-meta>
                                        <article-id pub-id-type="doi">10.16984/saufenbilder.460078</article-id>
                                                                <article-categories>
                                            <subj-group  xml:lang="en">
                                                            <subject>Mechanical Engineering</subject>
                                                    </subj-group>
                                            <subj-group  xml:lang="tr">
                                                            <subject>Makine Mühendisliği</subject>
                                                    </subj-group>
                                    </article-categories>
                                                                                                                                                        <title-group>
                                                                                                                        <article-title>Numerical and experimental approach of various sectioned new concept of the crash-boxes to determine the reliability and crashworthiness of the vehicles during frontal impacts</article-title>
                                                                                                                                        </title-group>
            
                                                    <contrib-group content-type="authors">
                                                                        <contrib contrib-type="author">
                                                                    <contrib-id contrib-id-type="orcid">
                                        https://orcid.org/0000-0002-9886-5533</contrib-id>
                                                                <name>
                                    <surname>Yılmazçoban</surname>
                                    <given-names>İbrahim Kutay</given-names>
                                </name>
                                                                    <aff>SAKARYA ÜNİVERSİTESİ, MÜHENDİSLİK FAKÜLTESİ, MAKİNE MÜHENDİSLİĞİ BÖLÜMÜ</aff>
                                                            </contrib>
                                                    <contrib contrib-type="author">
                                                                    <contrib-id contrib-id-type="orcid">
                                        https://orcid.org/0000-0003-4314-2538</contrib-id>
                                                                <name>
                                    <surname>Adanur</surname>
                                    <given-names>Ömer</given-names>
                                </name>
                                                                    <aff>SAKARYA UNIVERSITY</aff>
                                                            </contrib>
                                                    <contrib contrib-type="author">
                                                                    <contrib-id contrib-id-type="orcid">
                                        https://orcid.org/0000-0003-4238-8632</contrib-id>
                                                                <name>
                                    <surname>Bakhtiyar</surname>
                                    <given-names>Ahmad</given-names>
                                </name>
                                                                    <aff>SAKARYA UNIVERSITY</aff>
                                                            </contrib>
                                                    <contrib contrib-type="author">
                                                                    <contrib-id contrib-id-type="orcid">
                                        https://orcid.org/0000-0002-0476-1865</contrib-id>
                                                                <name>
                                    <surname>Ergün</surname>
                                    <given-names>Aslı</given-names>
                                </name>
                                                                    <aff>SAKARYA UNIVERSITY</aff>
                                                            </contrib>
                                                                                </contrib-group>
                        
                                        <pub-date pub-type="pub" iso-8601-date="20190201">
                    <day>02</day>
                    <month>01</month>
                    <year>2019</year>
                </pub-date>
                                        <volume>23</volume>
                                        <issue>1</issue>
                                        <fpage>76</fpage>
                                        <lpage>84</lpage>
                        
                        <history>
                                    <date date-type="received" iso-8601-date="20180914">
                        <day>09</day>
                        <month>14</month>
                        <year>2018</year>
                    </date>
                                                    <date date-type="accepted" iso-8601-date="20180927">
                        <day>09</day>
                        <month>27</month>
                        <year>2018</year>
                    </date>
                            </history>
                                        <permissions>
                    <copyright-statement>Copyright © 1997, Sakarya University Journal of Science</copyright-statement>
                    <copyright-year>1997</copyright-year>
                    <copyright-holder>Sakarya University Journal of Science</copyright-holder>
                </permissions>
            
                                                                                                <abstract><p>Araç kazaları incelendiğinde, çarpışmadavranışını ve yolcu güvenliğini değerlendirmek hususunda bir perspektif oluşmaktadır.Araç gövdesindeki deformasyonları ve yolcu yaralanmalarını azaltmak içingünümüze değin birçok donanım zaten geliştirilmiş bulunmaktadır. Bu donanımlar,aktif ve pasif güvenlik sistemleri olarak ikiye ayrılmaktadır. Bu çalışma, araçlarınkaza sürecinde çarpışma kutusu adı altında kullanılan pasif güvenlik sistemlerihakkında olup, önden çarpışmalardaki şok etkilerinin azaltılması maksadıyladeneysel olarak incelemelerden oluşmaktadır. Çarpışma kutuları için kare, daireselve diğer standart kapalı kesitler imalatın kolaylığı bakımından tercihedilmektedirler. Bu çalışma için ise açık kesitli çarpışma kutularıçalışılmıştır. İmalattaki sınırlandırmalardan dolayı dört yeni tasarımdan birtanesi tercih edilmiştir. Bu yeni tasarım çarpışma kutusu klasik kullanımdakindenfarklı olarak şasi önünde ve ön tamponun hemen arkasında yer almaktadır. W şekillibir kesite sahip olan çelik sac-metal çarpışma kutusu şok emici bir üniteolarak üretilmiştir. Deneyler için ise 2.88m düşürme yüksekliğine sahip birtest düzeneği kullanılmıştır. Test sürecinde, deney düzeneğinin kapasitesinebağlı olarak 1200kg’ a sahip bir aracın gerçek kaza senaryosunun sekizde biricanlandırabilmektedir. Çarpışma testleri, kabul edilen kaza senaryosunun oranıdoğrultusunda 150kg şeklinde olmaktadır. Sönümleyiciler için en uygun sackalınlığına karar verebilmek maksadıyla 2mm, 1.5mm, 1mm ve 0.8mm kalınlıktakinumuneler kullanılmışlardır. Sonuç olarak ise, 1mm kalınlıktaki St37 malzemedenimal edilmiş w şekilli sac-metal çarpışma kutusunun, önden meydana gelen kazadaortaya çıkan çarpışma enerjisini sönümleyebilecek kadar dayanıklı olduğuanlaşılmıştır.</p></abstract>
                                                                                    
            
                                                            <kwd-group>
                                                    <kwd>Vehicle Reliability</kwd>
                                                    <kwd>  Impact</kwd>
                                                    <kwd>  Shock Energy</kwd>
                                                    <kwd>  Crash-box</kwd>
                                                    <kwd>  Occupant Safety</kwd>
                                            </kwd-group>
                                                        
                                                                                                                                                    </article-meta>
    </front>
    <back>
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