آموزش نرم افزار Sysweld شبیه سازی جوشکاری و عملیات حرارتی

آموزش نرم افزار Sysweld

 شبیه سازی جوشکاری و عملیات حرارتی

قوی ترین نرم افزار شبیه سازی جوشکاری

  عملیات حرارتی و اتصالات جوش  

نرم افزار SYSweld معروف ترین و پرکاربردترین نرم افزار شبیه سازی در صنعت جوشکاری و عملیات حرارتی می باشد . همانگونه که می دانید که نرم افزارهای شبیه سازی مهندسی نرم افزارهایی کاربرپسند نیستند و کاربر بایستی جهت استفاده ازین نرم افزارها تحت آموزش قرار بگیرد .

کامل ترین مجموعه آموزشی نرم افزار Sysweld بسته SysWeld ToolBox CD  بوده  که توسط کمپانی ESI آماده گردیده و گام به گام به آموزش این نرم افزار بهمراه حل مثال و راه حل ها می پردازد .

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توضیحات بیشتر در ادامه مطلب ...  

مواد الکتروکرومیک

Electrochromic Materials

مواد الکتروکرومیک

ABSTRACT

 A set of materials exhibit electrochromic activity when constituted as a thin film structure whose coloration can be changed reversibly by electrical charging and discharging . there are two types of such electrochromic materials . The first type is uncolored when unpowered and changes to a colored state when a voltage is applied and returns to its uncolored state when the voltage is removed . In the second type an opposite voltage is required to be applied for bleaching ( or decoloration ) .The degree of coloration is a direct visual indication of the state of charing present in the material .

مواد ابر رسانا

Superconducting Materials

مواد ابر رسانا

ABSTRACT

The phenomenon of superconductivity came to be known in 1911 by observing that a capillary column of mercury immersed in a liquid helium bath woud show an abrupt reduction in resistance and at 4.2 K it became impossible to measure the low resistance exhibited by the column with the then available measurement techniques . It was concluded that below a critical temperature (T_c) the mercury had passed into a new state . Subsequent studies on superconduction were pursued with tin and lead as candidate materials and it was discovered that a critical current density (J_c) is carried by a superconduction sample before it returns to its normal ( metallic ) state .

مقدمه الزامات مهندسی برای مواد کامپوزیتی صنعت هوافضا

Introduction: engineering
requirements for aerospace
composite materials

مقدمه الزامات مهندسی برای مواد کامپوزیتی صنعت هوافضا 

ABSTRACT

Composite materials have gained popularity (despite their generally high cost) in high performance products that need to be lightweight, yet strong enough to take high loads such as aerospace structures (tails, wings and fuselages), boat construction, bicycle frames and racing car bodies. Other uses include storage tanks and fishing rods. Natural composites (wood and fabrics) have found applications in aircraft from the first flight of the Wright Brothers’ Flyer 1, in North Carolina on December 17, 1903, to the plethora of uses now enjoyed by man-made (engineered) composite materials on both military and civil aircraft, in addition to more exotic applications on unmanned aerial vehicles (UAVs), space launchers and satellites. Their adoption as a major contribution to aircraft structures followed on from the discovery of carbon fibre at the Royal Aircraft Establishment at Farnborough, UK, in 1964.

وضعیت صنعت در کنترل آخال ها در طی ریخته گری شمش فولادی

State of the Art in the Control of Inclusions during Steel
Ingot Casting

وضعیت صنعت در کنترل آخال ها در طی ریخته گری شمش فولادی

ABSTRACT

This article extensively reviews published research on inclusions in ingot steel and defects on ingot products, methods to measure and detect inclusions in steel, the causes of exogenous inclusions, and the transport and entrapment of inclusions during fluid flow, segregation, and solidification of steel cast in ingot molds. Exogenous inclusions in ingots originate mainly from reoxidation of the molten steel, slag entrapment, and lining erosion, which are detailed in this article. The measures to prevent the formation of exogenous inclusions and improve their removal are provided, which are very useful for the clean steel production of ingot industries.

مواد نیمه رسانا

Semiconducting Materials

مواد نیمه رسانا

ABSTRACT

Semiconductors are materials which have resistivities between the extremes of metallic conductors and insulators. A typical scale of conductivity of materials is depicted in Figure 10.1 . Semiconductors lie approximately between conductors ( with σ > 10⁵ siemen/meter ) and insulators (with σ < 10^-10 siemen/meter ) . Semiconductors are materials with filled valence bands and have a small forbidden energy gap between the upper-filled band and the overlapping vacant energy band . The electric conduction in Semiconductors is effected by two types of charge carriers namely . electrons ( negative charge carriers ) and holes ( positive charge carriers ) .

مواد فروالکتریک

Ferroelectric Materials

مواد فروالکتریک

ABSTRACT

Ferroelectric materials are typically nonlinear dielectrics with the following characteristics :

• They exhibit distinct dependency of permittivity on the intensity of an applied electric field
• The dielectric displacement versus applied electric field follows hysteresis loop characteristics
• The dielectric constant of these materials are invariably very high , on the order of thousands to tens of thousands .
• The dielectric parameters are pronouncedly dependent on temperature and the ferroelectric properities are observed only within a definite range of temperature
• There is presence of spontaneous dielectric polarization in the absence of external electric field And this polarization can be switched in direction by applying an electric field

مواد الکترولیت جامد

Solid Electrolytic Materials

مواد الکترولیت جامد

ABSTRACT

Also known as superionic conductors solid electrolytes are ionic materials which exhibit high electrical conductivity ( in comparsion whit liquid electrolytes ) above a certain critical temperature . They are also termed as fast-ion conductors . A solid electrolytes has the following characteristics .

• It is crystalline with ionic bonding
• Its electrical conductivity ( over a specified temperature is high ( 10-10-2 siemen/meter ) .
• Its principal charge carriers are ions . Hence , the fractional contribution of the ionic conductivity to the total conductivity ( termed as ionic transference number ) is almost equal to one .
• Its electronic conductivity is small . The corresponding electronic transference number is less than 10-4

مواد فریتی

Ferrites Materials

مواد فریتی

ABSTRACT

Ferrites are mixed crystals of various metallic oxides and may be considered to consist of oxygen ions in a closed-packed structure with cations filling the interstices . They have a general formula : MOFe₂O₃ , xH₂O where M is a divalent metallic ion such as Mn²⁺ , Fe²⁺ , Co²⁺ , Ni²⁺ , Zn²⁺ , Mg²⁺ , and Cd²⁺ . In general , the magnetic satruration intensity to ferrites is lower than that of various metallic magnetic alloys , but the ferrites have very high resistivity and as such are insulator-like . Therefor , the power loss in ferrites is very small especially at high frequencies . Further , ferrites have a narrow hysteresis (BH) loop and can be made with square-loop characteristics .

مواد فرومغناطیسی

Ferromagnetic Materials

مواد فرومغناطیسی

ABSTRACT

Ferromagnetic materials have the ability to carry high magnetic flux . Ferromagnetism refers to the property of increasing the magnetic flux associated with the material when a magnetizing force is applaid , but there exists a saturation point for most of the magnetic materials beyond which the associated magnetic flux does not increase . This condition is referred to as magnetic saturation . Ferromagnetic materials can be distinctly classified into two groups the magnetically soft and magnetically hard . The distinguishing properties are having high permeability and having easy to magnetize for soft materials and hard materials having high coercivity so that once magnetized the materials must be able to resist demagnetizing forces due to any appleid or stary magnetic fiels .