BS EN 1090: Execution of steel structures and aluminium structures: Parts 1,2,3

BS EN 1090: Execution of steel structures and aluminium structures Part 1 (2009): Requirements for conformity assessment of structural components Part 2 (2008): Technical requirements for steel structures Part 3: Technical requirements for aluminium structures ...

آموزش کامل نرم افزار Tekla structures

آموزش کامل نرم افزار Tekla structures ...

Poisson's Ratio Assessment of Different Auxetic Structures With and Without Nonlinear Geometric Effects

Poisson's Ratio Assessment of Different Auxetic StructuresWith and Without Nonlinear Geometric Effects Nasser Taghizadieh1, Ali Jalali21-Associate Professor, Faculty of Civil Engineering, University of Tabriz2- PhD Student, Faculty of Civil Engineering, University of [e-mail][e-mail]2 AbstractUnlike traditional materials, when an auxetic material is stretched, it expand laterally and when it iscompressed, it tend to get thinner. These extremely unusual materials do not defy the laws of elasticitytheory. It is only in the last 12 years that any such material also known as negative Poisson ratio materialhas been fabricated. In this paper different shape of auxetic structures such as anti-tetra-chiral, missing ribstructure, re-entrant structures have be ...

BS 7910:2013- Guide to methods for assessing the acceptability of flaws in metallic structures

BS 7910:2013- Guide to methods for assessing the acceptability of flaws in metallic structures 478 صفحه فهرست مطالب ContentsForeword viiiIntroduction 11 Scope 42 Normative references 43 Symbols and definitions 54 Types of flaw 145 General guidance on assessment 156 Information required for assessment 177 Assessment for fracture resistance 258 Assessment for fatigue 609 Assessment of flaws under creep and creep/fatigue conditions 9810 Assessment for other modes of failure 122AnnexesAnnex A (normative) Evaluation under mode I, II and III loads 129Annex B (informative) Assessment procedures for tubular joints in offshorestructures 134Annex C (informative) Fracture assessment procedures for pressure vessels andpipelines 141Annex D (normative) Stress due to misalignment 145Annex E (normative) ...

راهنمایی یک استاد بزرگ درمورد ساختار های پیاده ای Chess Structures a GM Guide

 Chess Structures a GM Guide  by Mauricio Flores Rios راهنمایی یک استاد بزرگ درمورد ساختار های پیاده ای فرمت:pdf تعداد صفحات:464 نسخه اوریجینال با قابلیت کپی و چاپ انتشارات: Qaulity chess 2015   ایده نگارش این کتاب از آنجایی بوجود آمده که نویسنده کتاب راه دشوار یادگیری شطرنج را خود طی نموده است و حتی با دانستن خیلی از نکات استراتژی بازی شطرنج باز هم تعداد زیادی از بازی ها را از دست می داده است در حالیکه علت آن را متوجه نمی شدحتی با مطالعه برخی کتاب های استراتژی با قوانین بعضا اشتباهی روبرو می شد استاد بزرگ ریوس به این نتیجه رسید مدتی تاکتیک کار کند و بازی های بسیار حادی را اجرا کند اما اشکال اینکار نیز این بود که خیلی از بازی ها اصلا حاد نمی شد و صرفا تبدیل به یک جدال استراتژیک می شد,لذا او برآن شد که کتابی بنویسد برخلاف تمام کتاب های استراتژیک دیگر که صرفا قوانی ...

Structural Health Monitoring Technologies for Civil Engineering Structures

PDF Structural Health Monitoring Technologies for Civil Engineering Structures   Author:[ Ahmet Turer ] - Middle East Technical University, Civil Engr. Dept., 06800 Ankara, Turkey   Abstract: This paper discusses basic principles of Structural Health Monitoring (SHM), how it has evolved and current state-of-the-art. The need for monitoring is categorized under main titles of necessity for SHM. The toolbox of monitoring projects share similar sensors. Most commonly used sensors and their working principles are briefly discussed. The duration of measurement and outcomes obtained from short and long term monitoring are elaborated. Dynamic and static measurements sometimes need to be combined for the maximum gain from monitoring studies. Advanced tools like modal analysis, acoust ...