کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5015631 1464051 2017 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Rigid and eroding projectile penetration into concrete targets based on an extended dynamic cavity expansion model
ترجمه فارسی عنوان
نفوذ پرتابه سفت و محکم به اهداف بنیادی بر اساس یک مدل گسترش پویایی پویا
کلمات کلیدی
مدل توسعه حفره پویا، نفوذ، بتن، پرتابه سخت پرتابه
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
چکیده انگلیسی
A hyperbolic yield criterion and Murnaghan equation of state were introduced to describe the plastic behavior of concrete material under projectile penetration, and an extended dynamic cavity expansion model was proposed. Then, a unified one-dimensional resistance of concrete target to projectile penetration was formulated, in which the projectile nose shape influences were taken into account by three non-dimensional coefficients. Furthermore, combined with the Newton's second law and Alekseevskii-Tate equations, both rigid and eroding projectile penetration models into concrete targets were established. By comparing with the existing tests data as well as prediction results of previous model based on the linear yield criterion and equation of state, the proposed models were verified. Besides, a series of practical parameters of hyperbolic yield criterion and Murnaghan EOS for the extended dynamic cavity expansion model were given and verified.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Impact Engineering - Volume 100, February 2017, Pages 13-22
نویسندگان
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