دانلود مقاله انگلیسی رایگان:رویکرد پویای صریح برای دامنه های بدون مرز در تماس اصطکاک با میزان  قوانین ایالتی - 2020
دانلود بهترین مقالات isi همراه با ترجمه فارسی 2
دانلود مقاله انگلیسی حقوق عمومی رایگان
  • Explicit dynamic approach for unbounded domains in frictional contact with Rate and State laws Explicit dynamic approach for unbounded domains in frictional contact with Rate and State laws
    Explicit dynamic approach for unbounded domains in frictional contact with Rate and State laws

    سال انتشار:

    2020


    عنوان انگلیسی مقاله:

    Explicit dynamic approach for unbounded domains in frictional contact with Rate and State laws


    ترجمه فارسی عنوان مقاله:

    رویکرد پویای صریح برای دامنه های بدون مرز در تماس اصطکاک با میزان قوانین ایالتی


    منبع:

    Sciencedirect - Elsevier - Finite Elements in Analysis and Design, 174 (2020) 103402: doi:10:1016/j:finel:2020:103402


    نویسنده:

    M. Brun a,*, R. Rezakhani b, J.-F. Molinari b


    چکیده انگلیسی:

    The paper explores the ability of an explicit time integration procedure to simulate the dynamics of shear rupture between unbounded elastic blocks on frictional interface, modeled with the finite element method. The behaviour of the interface is governed by Rate and State (RS) friction laws, proposed to describe the rate dependent phenomena observed in experiments on rocks and many other materials in sliding contact. The method for the frictional contact between bodies is integrated in the framework of heterogeneous asynchronous time integrator (HATI). Dual formulation, requiring the introduction of Lagrange multipliers, is adopted by dealing in a weak way with the normal contact conditions as well as the tangential frictional conditions expressed in velocity. Taking advantage of the flexibility of the HATI framework, precise formulations of Perfectly Matched Layers (PML) are also incorporated, enabling us to treat semi-infinite media in frictional contact. Simulations concerning an unbounded elastic block on a rigid flat plane, initially compressed and sheared with remote loadings, are carried out. Advantages of the PML are underlined during the preliminary stages of loading as well as during the nucleation and propagation of the shear rupture along the interface. Numerical oscillations inherent from the high nonlinearity of the RS friction law, characterized by significant variations of the friction coefficient with small changes in tangential velocity, are drastically reduced thanks to the HATI method.
    Keywords: Finite element method | Hybrid asynchronous time integrator | Frictional contact | Rate and State friction law | Unbounded domains | Perfectly matched layers


    سطح: متوسط
    تعداد صفحات فایل pdf انگلیسی: 19
    حجم فایل: 2667 کیلوبایت

    قیمت: رایگان


    توضیحات اضافی:




اگر این مقاله را پسندیدید آن را در شبکه های اجتماعی به اشتراک بگذارید (برای به اشتراک گذاری بر روی ایکن های زیر کلیک کنید)

تعداد نظرات : 0

الزامی
الزامی
الزامی
rss مقالات ترجمه شده rss مقالات انگلیسی rss کتاب های انگلیسی rss مقالات آموزشی
logo-samandehi