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  2. Crack tip opening displacement - Wikipedia

    en.wikipedia.org/wiki/Crack_tip_opening_displacement

    The specimen is placed on the work table and a notch is created exactly at the centre. The crack should be generated such that the defect length is about half the depth. The load applied on the specimen is generally a three-point bending load. A type of strain gauge called a crack-mouth clip gage is used to measure the crack opening. [3]

  3. Crack arrestor - Wikipedia

    en.wikipedia.org/wiki/Crack_arrestor

    A crack arrestor (otherwise known as a rip-stop doubler) is a structural engineering device. Being typically shaped into ring or strip, and composed of a strong material, it serves to contain stress corrosion cracking or fatigue cracking, helping to prevent the catastrophic failure of a device.

  4. Fracture mechanics - Wikipedia

    en.wikipedia.org/wiki/Fracture_mechanics

    Concrete fracture analysis is part of fracture mechanics that studies crack propagation and related failure modes in concrete. [17] As it is widely used in construction, fracture analysis and modes of reinforcement are an important part of the study of concrete, and different concretes are characterized in part by their fracture properties. [ 18 ]

  5. File:Center crack tension specimen.pdf - Wikipedia

    en.wikipedia.org/wiki/File:Center_crack_tension...

    Date/Time Thumbnail Dimensions User Comment; current: 03:45, 12 May 2019: 1,239 × 1,752 (23 KB): Sairam Pamulaparthi Venkata {{subst:Upload marker added by en.wp UW}} {{Information |Description = {{en|This is a geometrical representation of center cracked tension test specimen}} |Source = I created this pictorial representation for my project |Date = 2019-05-05 |Author = Sairam Pamulaparthi ...

  6. Crack spacing of reinforced concrete - Wikipedia

    en.wikipedia.org/wiki/Crack_spacing_of...

    When a reinforced concrete member is put in tension, after cracking, the member elongates by widening of cracks and by formation of new cracks. Figure 1 Formation of internal cracks. Ignoring the small elastic strain in the concrete between the cracks, we can relate the crack width to the strain of the member by:

  7. Elastomeric bridge bearing - Wikipedia

    en.wikipedia.org/wiki/Elastomeric_bridge_bearing

    Elastomeric bearing pads are the most economical solution used in construction of large span bridges and buildings. [1] [2] Elastomeric bearings are often used in applications other than bridges, for example, supporting buildings that are built on soil that may shift slightly and cause a concrete load to crack in the absence of a elastomeric ...

  8. Piping and instrumentation diagram - Wikipedia

    en.wikipedia.org/wiki/Piping_and_instrumentation...

    Piping and instrumentation diagram of pump with storage tank. Symbols according to EN ISO 10628 and EN 62424. A more complex example of a P&ID. A piping and instrumentation diagram (P&ID) is defined as follows: A diagram which shows the interconnection of process equipment and the instrumentation used to control the process.

  9. Precast concrete lifting anchor system - Wikipedia

    en.wikipedia.org/wiki/Precast_concrete_lifting...

    The anchor selection, together with additional reinforcement, and rigging arrangements is influenced by: - The dead weight of the element - The number of anchors in the element and the configuration of the anchor - Capacity of the anchor at the specific concrete compressive strengths at time of lift - The dynamic loads applied during lifting ...