دانلود رایگان مقاله لاتین توالی آسیب حوادث از سایت الزویر
عنوان فارسی مقاله:
توالی آسیب حوادث رخدادی در دوره اثر شدید انرژی پایین
عنوان انگلیسی مقاله:
Sequence of damage events occurring in the course of low energy impact
سال انتشار : 2016
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مقدمه انگلیسی مقاله:
1. Introduction
Often, service damage to composite airframes taking place during operation of an aircraft is caused by a low energy impact of a foreign object. Often, primary parts of composite airframes are of laminar structure, for which the interlaminar fracture resistance is the Achilles' heel since such impacts can easily produce delaminations accompanied by intralaminar fracture. The purpose of the presented work was to investigate the sequence of events taking place during such a damage formation to understand better its mechanism. Some researchers claim that it is possible to take advantage of a quasi-static tests for analysing impact damage events and mechanisms of energy dissipatation assuming the same maximum values of contact force and impact energy [1–4], however, some other investigations indicate that the damage extent and damage modes present depend on impactor mass and impactor velocity even though impact energy is the same [5]. Because of the aforementioned ambiguous results the presented FE simulation of impact damage took into account dynamic effects. The object of investigation was a laminate plate containing reinforcement layers oriented at 308. Such a reinforcement configuration can compromise on shear and normal strengths and stiffness offered by a structure with 08 and 458reinforcement orientation. The former can offer simplification of a manufacturing process due to a lower number of different reinforcement orientations and simpler placing process,
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کلمات کلیدی:
Physics at LEAR with Low-Energy Cooled Antiprotons https://books.google.com/books?isbn=1468487272 Robert Klapisch, Ugo Gastaldi - 2012 - Science Since there is considerable energy available (v 2 GeV), phase space arguments allow many possible final states to occur. Of course, such s-channel diagrams can also lead to 2–body baryon or hyperon final states. ... p-beam Ap X p GeV/c events/day events/day 1.5 STUDY OF THE pp - YY REACTION AT THRESHOLD 479. TAUP 91: Proceedings of the Second International Workshop on ... https://books.google.com/books?isbn=1483257142 A. Morales, J. Morales, J. A. Villar - 2016 - Science The detector was still in a course of fine adjustments, and the data-taking ... Nevertheless the background rate was low, 6.5 events/d for electron energy (E.) ... Cf. Only the second event from multiple events occurring in 500pusec are used here ... Fundamental Interactions in Low-Energy Systems https://books.google.com/books?isbn=1468449672 P. Dalpiaz, G. Fiorentini, G. Torelli - 2012 - Science PREFACE The fourth course of the International School of Physics of Exotic Atoms ... a tool for studying electromagnetic, weak and strong interactions at low energies. ... one can search for rare events and can perform precise measurements. Reactor Dosimetry in the 21st Century https://books.google.com/books?isbn=9814485489 Jan Wagemans, Hamid Aït Abderrahim, Pierre D'hondt - 2003 - Science The nuclear electronics are configured to record scintillation events in which the ... set to include all events occurring above an arbitrary low-level discriminator setting that is established near the low-energy end of the gamma-ray spectrum. ... Firstly, absorption by the source of now thermalized neutrons (which, of course, ... Strong Interactions and Gauge Theories: Proceedings of the Hadronic ... https://books.google.com/books?isbn=2863320416 J. Thanh Van Tran - 1986 - Electroweak interactions UA1 reports also the results of a study of energy clustering in soft events, which ... the threshold as low as Ej> 5 GeV, and of course low energy jets were found.
