Robust and reliable FE-model spotweld characterization has been a challenge since spotweld technology was incorporated extensively into the automotive industry. The innovation required leads to constant enhancement of product performance; reduced time-tomarket, cost and weight. The need for quality requires robust development tools, consistency of design decisions, andrepeatability of the development process. Proper spotweld characterization has a clear impact on the above-mentioned needs and carmakers invest in efforts to increase the efficiency of the development process. Furthermore, the continuoususage of new steel grades increases the complexity of the topic. This paper presents an in-depth spotweld study that involves three different spotweld specimens: KSII; lap shear and peeling, for automotive steel grades and usual part thicknesses for each steel grade. The specimens are welded using automotive welding guns to ensure the representativeness of the samples following automotive standards during the manufacturing process. KSII specimen provides accurate information regarding the local spotweld properties. KSII specimen is tested considering three loading conditions: pure shear, pure tension, and 45 degree mixedmode. Lap shear and peeling specimens represent the typical joining geometry for spotwelded steel parts (e.g. flange welding). Crashworthiness is one of the development fields where the spotweld has a relevant role and the spotweld FEmodel should capture the comprehensive spotweld behaviour.This is elasto-plastic, damage and failure behaviour in both quasi-static and dynamic conditions. The study analyses quasi-static behaviour for all the aforementioned specimens together with dynamic behaviour for both peeling and lap shear specimens.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Quasi-Static & Dynamic Spotweld Characterization for Automotive Crashworthiness Conditions


    Weitere Titelangaben:

    Sae Technical Papers


    Beteiligte:
    Viñas, Jordi (Autor:in) / Muñoz, Jose Antonio (Autor:in) / Cruz, Pablo (Autor:in)

    Kongress:

    Symposium on International Automotive Technology 2015 ; 2015



    Erscheinungsdatum :

    2015-01-14




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Print


    Sprache :

    Englisch




    Quasi-Static and Dynamic Spotweld Characterization for Automotive Crashworthiness Conditions

    Cruz, P. / Munoz, J.A. / Vinas, J. et al. | British Library Conference Proceedings | 2015


    Crashworthiness Performance of Multi-Cornered Structures under Quasi-Static Compression and Dynamic Axial Loading Conditions

    Chen, Guofei / Aekbote, Krishnakanth / Tyan, Tau et al. | SAE Technical Papers | 2020


    Numerical Prediction of Various Failure Modes in Spotweld Steel Material

    Lankarani, Hamid / Patil, Sachin | SAE Technical Papers | 2018


    Automotive Composite Structures for Crashworthiness

    Lukaszewicz, Dirk H.‐J.A. | Wiley | 2013


    AUTOMOTIVE CRASHWORTHINESS ENERGY ABSORPTIVE PART

    HIGAI KAZUHIKO / SHIOZAKI TSUYOSHI / TAMAI YOSHIKIYO et al. | Europäisches Patentamt | 2023

    Freier Zugriff