• Engineering

    Contact Types and Behaviours in Structural Analysis

    In multibody analysis, contacts must be defined on geometries. With contact, boundary and load conditions, DOF (degree of freedom) on geometries need to be identified when we apply a structural analysis on parts, such as linear static, non-linear static, dynamics and so on. The DOF for a node represent the possible movement of the structure. Basically, a shell element has got 6 DOF that 3 translation and 3 rotation movement. DOF also represents which forces and moments are transferred from one element to the next. The results of a finite element analysis, (deflections and stresses), are usually given at the nodes. In structural analysis softwares, the contact is generated by…

  • Engineering

    What is Fatigue?

    Fatigue In general, boundary condition loads are at a level that do not cause any damage when applied once, but when repeatedly applied, damage occurs in the form of cracks or fractures. In other words, fatigue is the changes that occur in the internal structure of the material under variable stresses. Life: It is the number of cycles that the machine element can resist until it breaks. Fatigue damage; Breaking a material under variable dynamic loads after a certain period of time is called fatigue damage. Except in special cases, the stress level, which causes fatigue mostly, is less than the yield strength of the material. Material behavior under variable…

  • 3D Printer

    Types of 3D Printers

    While there are many varieties in 3D printer technologies, there are seven most common types. All printing technologies build parts in discrete slices called layers. Fused Filament Fabrication (FFF, also known as Fused Deposition Modeling) Continuous Filament Fabrication (CFF) Atomic Diffusion Additive Manufacturing (ADAM, also known as Bound Powder Deposition) Selective Laser Sintering/Melting (SLS/SLM, also known as DMLS for metal) Direct Light Processing (DLP) Stereolithography (SLA) Binder Jetting Extrusion FFF (Fused Filament Fabrication) Much like traditional printers use a variety of technologies. The most commonly known is fused filament fabrication (FFF), also known as fused deposition modeling (FDM). most machines utilize this technology. In FFF, the printer heats up thermoplastic…

  • Engineering

    Essential Structural Analysis

    Static Analysis It includes consequences of steady-state which means the design will survive/behave as requested under boundary conditions or will not. Static analysis does not depend on the time. Static analysis may not give enough respond to request if there is a time dependent analysis. Dynamic Analiysis It is used to specify of design’s and components’ dynamic behaviours. Unlike Static analysis, dynamic analysis depends on the time, and inertia and damping of the structure are dramatically important in dynamic analyzes. Dynamic behaviours of the structure may be one or more of the following; Vibration properties The effect of harmonic loads The effects of seismic and shock loads The effect of…

  • Manufacturing

    CAM (Computer-Aided Manufacturing)

    The emergence of computers and digital technologies is acknowledged the Third Industrial Revolution. Many of them are currently built on digital innovations and include elements such as automation, artificial intelligence (AI), biotechnology, internet of things (IoT) and 3D printing. If we talk briefly about industrial revolutions, the first industrial revolution is the revolution in which steam-powered machines emerged. The second industrial revolution is the revolution of the steel industry, electricity, telegraph and internal combustion engines between 1870 and 1913. The third industrial revolution is the revolution in the computer, electronics and communication networks after the second world war. The fourth industrial revolution is the revolution in autonomous devices, 3D printers…

  • 3D Printer,  Manufacturing

    Using CAM technology in construction industry?

    CAM has being used all around the world. CAM generally falls into two main types: subtractive and additive. Subtractive processes involve getting rid of material, and this includes the previous example of guiding a cutting tool to cut out a section of cladding. These cutting and shaping processes are currently the more commonly used types of CAM, and the laser cutting of sheet metal is certainly becoming more common. CNC (computer numerical control) machine cutting can be used mostly on workpieces. Additive processes involve adding material. They are less common at present compare to subtractive according to manufacturing value, but the arrival of 3D printers makes this a very exciting…