Xem 1-20 trên 34 kết quả Compressible material
  • The stability problem of thin triangular plates by the small elastoplastic deformation theory, was studied in [3]. Basing on the theory of elastoplastic processes, this problem again has been investigated in [4] with incompressible material. In this paper we continue to study the mentioned problem with compressible material. The relation for determining critical forces is established. In particular the explicit expression of the critical force for the linear hardening material is found. Some numerical calculations have been given and discussed. ...

    pdf11p tuanlocmuido 19-12-2012 19 2   Download

  • This paper presents the result of research on equipment development of vacuum injection molding technique for preparation the chopped bamboo fiber polymer composite and some properties of obtained composite material. For the vacuum injection molding technique, firstly the dry fibers were plated in the mold. Then the mold was closed by the vacuum bag, the air inside the mold was sucked out by a vacuum pump, due to the difference of the pressure in side and outside the mold, the polymer liquid was transferred to the closed mold and impregnated the bamboo fiber.

    pdf7p uocvong01 24-09-2015 11 2   Download

  • Industrial Safety and Health for Goods and Materials Servicesfocuses on the safety requirements of the wholesale and retail trades, including warehousing. This detailed text describes the hazards associated with chemicals, compressed gases, and fire.

    pdf424p 951628473 04-05-2012 50 24   Download

  • The benchmark guide for compressor technology pros You don't have to scour piles of technical literature for compressor answers any longer. The Compressor Handbook compiled by Paul Hanlon packs all the answers on design procedures, practical application, and maintenance of compressors—straight from top experts on these widely used machines.

    pdf760p beobobeo 01-08-2012 58 18   Download

  • The use and definition of high-strength concrete (HSC) has seen a gradual and continuous development over many years. In the 1950s, concrete with a compressive strength of 5000 psi (34 MPa) was considered high strength. In the 1960s, concrete with compressive strengths of 6000 and 7500 psi (41 and 52 MPa) were produced commercially. In the early 1970s, 9000 psi (62 MPa) concrete was produced. Today, compressive strengths approaching 20,000 psi (138 MPa) have been used in cast-in-place buildings.

    pdf0p shinno2910 28-08-2012 96 13   Download

  • This standard is issued under the fixed designation C 349; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.

    pdf4p kien098 03-02-2011 51 11   Download

  • Volume flow rate of compressed air is provided by a separate rate Pneumatic valve for each engine. This article is structured as follows: first, a mathematical modeling of mechatronic systems origin, which results in a state-space description of nonlinear icon.

    pdf486p lulanphuong 23-03-2012 41 11   Download

  • Fuel Injection is a key process characterising the combustion development within Spark- Ignition (SI) and Compression Ignition (CI) Internal Combustion Engines (ICEs). Fuel Injection and Spray Behaviour in fact largely control the fuel-air mixing, combustion process efficiency, stability, the production of noxious species, the radiated noise, etc.The proper design of the fuel injection system requires the employment of both experimental and numerical techniques, sometimes coupled for optimisation procedures....

    pdf0p 123859674 04-07-2012 46 11   Download

  • •In pipelines of gasses flow functional reliance l = f(De,Re) is valid.It means ,that friction depend from the equivalent roughness and flow regime.

    ppt14p ledinhluong 12-01-2010 66 9   Download

  • This standard is issued under the fixed designation C 563; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.

    pdf3p kien098 03-02-2011 65 8   Download

  • Additives to lead±acid battery active materials and components are categorized as physical and chemical attribute additives. Separators are equally divided into two classes, those that have inner skeletal structures, commonly made of mixtures of polymers and precipitated silica, and those that are made of loose ®bers. Separator additives are also brie¯y discussed. Both physical and chemical impacts of active material additives on separators are considered.

    pdf9p congdat261 19-11-2010 34 3   Download

  • In most cases, the independence date for each country (reported in Appendix Table 2) provided the relevant benchmark for our data collection efforts. In some cases, such as Finland, Dominica, Grenada, Papua New Guinea, New Zealand, Norway, Slovakia, and Zimbabwe, debt data were available for a few years in advance of independence years and appeared consistent with the trend in later years. These data were retained. Similarly, data were also available and included for Austria-Hungary (reported under Austria) and Czechoslovakia (reported under Czech Republic). ...

    pdf16p yasuyidol 02-04-2013 15 3   Download

  • In the last 30 years, plastics have become the most dominant engineering material for most products. We take a brief look at the most common types of plastics, and how they are processed. All plastics are polymers, these polymers are further divided into two basic types: thermoplastics and thermosets.

    pdf16p ckm0789 11-01-2014 43 3   Download

  • Lecture BSc Multimedia - Chapter 1: Introduction to multimedia. After reading the material in this chapter, you should be able to: What is Multimedia? Multimedia application definition, what is hypertext and hypermedia? Multimedia applications, multimedia systems, characteristics of a multimedia system, challenges for multimedia systems,…

    pdf27p estupendo4 18-08-2016 3 1   Download

  • Concrete is an ancient material of construction, first used during the Roman Empire, which extended from about 20 B.C. to 200 A.D. The word concrete is derived from the Roman concretus, meaning to grow together. Although this early mixture was made with lime, cement, and a volcanic ash material called pozzolana, concrete today is a sophisticated material to which exotic constitutents can be added and, with computer-controlled batching, can produce a product capable of achieving 50,000 psi compressive strength....

    pdf881p nhutthinh 17-07-2009 196 141   Download

  • Alciatore/Histand Introduction to Mechatronics and Measurement System Anderson Fundamentals of Aerodynamics Anderson Introduction to Flight Anderson Modern Compressible Flow Barber Intermediate Mechanics of Materials Beer/Johnston Vector Mechanics for Engineers Beer/Johnston Mechanics of Materials Budynas Advanced Strength and Applied Stress Analysis Budynas/Nisbett Shigley’s Mechanical Engineering Design Cengel Heat Transfer: A Practical Approach Cengel Introduction to Thermodynamics & Heat Transfer Cengel/Boles Thermodynamics: An Engineering Approach Cengel/Clmbala Fluid Mechanics: Fund...

    pdf448p philong9016 14-12-2012 89 57   Download

  • A displacement pump (also called positive-displacement, or just p-d) is a pump which imparts energy to the pumpage (the material pumped) by trapping a fixed volume at suction (inlet) conditions, compressing it to discharge pressure, then pushing it into the discharge (outlet) line.

    pdf0p nguyen8 03-12-2009 188 49   Download

  • This dissertation investigates novel applications of the wavelet transform in the analysis and compression of audio, still images, and video. In a second focal point, we evaluate the didactic potential of multimedia–enhanced teaching material for higher education. Most recently, some theoretical surveys have been published on the potential for a wavelet–based

    pdf240p longmontran 18-01-2010 88 40   Download

  • CONTENTS CONTENTS 820 C H A P T E R n A Textbook of Machine Design Springs 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 23 Introduction. Types of Springs. Material for Helical Springs. Standard Size of Spring Wire. Terms used in Compression Springs. End Connections for Compr ession Helical Springs. End Connections for Tension Helical Springs. Stresses in Helical Springs of Circular Wire. Deflection of Helical Springs of Circular Wire. Eccentric Loading of Springs. Buckling of Compression Springs. Surge in Springs.

    pdf65p hadalabo 29-09-2010 74 22   Download

  • Concrete has been in use as a primary building material since Roman times. As it is strong in compression but weak in tension, it was used in arches, vaults and walls where it is stressed principally in compression. In the mid-nineteenth century, it was discovered that iron and later steel bars could be embedded in the concrete, effectively giving it tensile strength. This allowed it to be used in beams and slabs, where it worked in bending. Buildings, bridges, retaining walls and many other structures were made in this reinforced concrete.

    pdf606p thienbinh1311 13-12-2012 73 20   Download

Đồng bộ tài khoản