مجله فصل مشترک ها، لایه های نازک و سیستم های با بعد کم
مروری بر اثرات جفت شدگی زبری در ناحیه تماس، جداسازی سطحی، چسبندگی و اصطکاک بین یک جامد الاستیک و یک بستر سخت با سطوح ناهموار تصادفی فرکتال خود متناسب
نوع مقاله : مقاله مروری
نویسندگان
گروه ماده چگال، دانشکده فیزیک، دانشگاه الزهرا، تهران، ایران
چکیده
هنگامی که دو جامد به یکدیگر فشرده می شوند، معمولاً در همه جای ناحیه تماس اسمی تماس اتمی برقرار نمی کنند.
این واقعیت به دلیل پیامدهای عملی عظیم آن باید در بسیاری از کاربردهای تکنولوژیک مورد توجه قرار گیرد. در این مقاله، مکانیک تماس پرسون را به اختصار بررسی می کنیم و سپس یک نسخه توسعه یافته از مکانیک تماس پرسون را بررسی می کنیم. در نسخه توسعه‌یافته، ما دو جامد را ناهموار در نظر می‌گیریم و اثرات زبری سطح دو جامد را بر سطح تماس واقعی، چسبندگی، اصطکاک و جدایی سطحی محاسبه می‌کنیم.
ما نشان می‌دهیم که این مقادیر به شدت به زبری دو جامد و همبستگی متقابل بین آنها بستگی دارد. بنابراین، ما نشان می‌دهیم که هیچ نگاشت کلی، بین سیستم‌هایی که هر دو سطح تماس، ناهموار و خود مشابه هستند و آنهایی که فقط یک سطح آنها ناهموار و خود مشابه هستند وجود ندارد.
کلیدواژه‌ها
موضوعات
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