2019 Cilt 24 Sayı 2

Permanent URI for this collectionhttps://hdl.handle.net/11452/12570

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    Effect of heat treatment and cross section on the crashworthiness of 51CRV4 spring steel
    (Bursa Uludağ Üniversitesi, 2019-07-22) Dindar, Çiğdem; Beytüt, Hüseyin; Karagöz, Selçuk
    In this study, 51CrV4 spring steel was used as a crash box material and its crashworthiness was investigated under axial dynamic loading. Crash boxes with cylinder and square geometries were designed in SolidWorks and crash analyses were performed by using RADIOSS/explicit and nonlinear Finite Element (FE) codes. In addition, 51CrV4 spring steel was subjected to three different heat treatments and their mechanical properties were determined by tensile and hardness tests. The crashworthiness of crash box was evaluated taking into account the energy absorption (EA), peak crushing force (PCF), mean crushing force (MCF) and crash force efficiency (CFE). Since the crash boxes had equal mass, their EA rates are equal to specific energy absorption (SEA) rates. It has been observed that heat treatment and cross-section geometry have a serious impact on crashworthiness.