impact specimen

См. также в других словарях:

• impact test — Test of the ability of a material to withstand impact, used by engineers to predict its behaviour under actual conditions. Many materials fail suddenly under impact, at flaws, cracks, or notches. The most common impact tests use a swinging… …   Universalium

• impact test — a test designed to give information on how a specimen of a known material will respond to a suddenly applied stress, e.g. shock. The test ascertains whether the material is tough or brittle. A notched test piece is normally employed and the two… …   Mechanics glossary

• Charpy impact test — v · d · e Materials failure modes Buckling · …   Wikipedia

• Izod impact test — a test specimen, usually of square crossed section is notched and held between a pair of jaws, to be broken by a swinging or falling weight. When the pendulum of the Izod testing machine is released it swings with a downward movement and when it… …   Mechanics glossary

• pendulum impact test — The standard test methods are the Izod and Charpy tests; the specimens have a standard notch machined in them, and the impact energy absorbed in breaking the specimen is recorded …   Dictionary of automotive terms

• Life Sciences — ▪ 2009 Introduction Zoology       In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …   Universalium

• Dinosaur — For other uses, see Dinosaur (disambiguation). Dinosaurs Temporal range: Late Triassic–Late Cretaceous, 231.4–65.5 Ma …   Wikipedia

• rock — rock1 rockless, adj. rocklike, adj. /rok/, n. 1. a large mass of stone forming a hill, cliff, promontory, or the like. 2. Geol. a. mineral matter of variable composition, consolidated or unconsolidated, assembled in masses or considerable… …   Universalium

• Rock — /rok/, n. a male given name. * * * I In geology, a naturally occurring and coherent aggregate of minerals. The three major classes of rock igneous, sedimentary, and metamorphic are based on the processes that formed them. These three classes are… …   Universalium

• Anthropology and Archaeology — ▪ 2009 Introduction Anthropology       Among the key developments in 2008 in the field of physical anthropology was the discovery by a large interdisciplinary team of Spanish and American scientists in northern Spain of a partial mandible (lower… …   Universalium

• Dingo — For other uses, see Dingo (disambiguation). Dingo Australian dingo Conservation status …   Wikipedia