کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8965110 | 1646695 | 2018 | 15 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Analytical model for the dynamic response of blast-loaded arching masonry walls
ترجمه فارسی عنوان
مدل تحلیلی برای واکنش دینامیکی دیوارهای سنگ تراشی انفجاری
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
مهندسی ژئوتکنیک و زمین شناسی مهندسی
چکیده انگلیسی
The dynamic response of arching masonry walls subjected to blast loads is rather complex and is accompanied by different physical aspects such as: opening/closing of cracks, unloading-reloading effects, and variable arching force magnitude and line of action with time. The longitudinal and lateral inertial forces result in a coupled in-plane/out-of-plane dynamic response. These aspects, which are not considered in present single-degree-of-freedom (SDOF) models for masonry walls simulation, enhances the wall behaviour modelling and make the dynamic analysis complex and challenging. This article presents the development procedure of a new simplified yet realistic SDOF model for the one-way dynamic response of such walls. The model is based on a new recently developed analytical model for calculating the static force-displacement relationship, which is implemented within the equation of motion. Geometric and material nonlinearities, together with loading/unloading paths in the mortar material are considered, and their effect on the dynamic response is investigated. Results of this model were compared with available test results of one-way arching URM walls exposed to blast loads. The model well predicts the maximum peak displacement as well as the overall displacement-time history within the inbound phase. New insights regarding the test specimens and the dynamic characteristics affecting the arching wall behavior are gained.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Structures - Volume 176, 1 December 2018, Pages 49-63
Journal: Engineering Structures - Volume 176, 1 December 2018, Pages 49-63
نویسندگان
Idan E. Edri, David Z. Yankelevsky,