Delamination is a mode of failure of laminated composite materials. Repeated cyclic stresses, impact, and so on can cause layers to separate, forming a mica-like structure of separate layers, with significant loss of mechanical toughness. Delamination is an insidious kind of failure as it develops inside of the material, without being obvious on the surface, much like metal fatigue. A cloth of woven carbon fiber filaments, a common element in composite materials Composite materials (or composites for short) are engineered materials made from two or more constituent materials with significantly different physical or chemical properties and which remain separate and distinct within the finished structure. ... Rock with mica Mica sheet Mica flakes The mica group of sheet silicate minerals includes several closely related materials having highly perfect basal cleavage. ... This article is about a computer game. ...

Delamination failure may be detected in the material by its sound; solid composite has bright sound, while delaminated part sounds dull. Other nondestructive testing methods involve embedding optical fibers coupled with optical time domain reflectometer testing of their state, testing with ultrasound, and infrared imaging. // Nondestructive testing (also called NDT, nondestructive evaluation, NDE, and nondestructive inspection, NDI) is testing that does not destroy the test object. ... Optical fibers An optical fiber (or fibre) is a glass or plastic fiber designed to guide light along its length by confining as much light as possible in a propagating form. ... In telecommunication, an optical time domain reflectometer (OTDR) is an optoelectronic instrument used to characterize an optical fiber. ... Ultrasound is a form of cyclic sound pressure with a frequency greater than the upper limit of human hearing, this limit being approximately 20 kilohertz (20,000 hertz). ...

Some manufacturers of carbon composite bike frames suggest to dispose of the expensive frame after a particularly bad crash, because the impact could develop defects inside the material. Carbon fiber composite is a strong, light and very expensive material. ... “Velo” redirects here. ...

Due to increasing use of composite materials in aviation, delamination is increasingly an air safety concern, especially in the tail sections of the airplanes. Aviation refers to flying using aircraft, machines designed by humans for atmospheric flight. ... Air safety is a broad term encompassing the theory, investigation and categorization of flight failures, and the prevention of such failures through appropriate regulation, as well as through education and training. ...

Delamination risk is as old as composite material. Even in 1940s, several Yak-9s experienced delamination of plywood in their construction. This article or section does not cite any references or sources. ... Related content Related development: Yak-1 - Yak-3 - Yak-7 - Yak-11 Comparable aircraft: Designation sequence: Yak-6 - Yak-7 - Yak-8 - Yak-9 - Yak-10 - Yak-11 - Yak-12 Categories: Aircraft stubs | Soviet fighter aircraft 1940-1949 ... Toy constructed from plywood. ...

Delamination can also occur in large steel I beams too. Due to Welding or heat on the exterior of the beam, which cause the beam web, or flange lose its shape.