Strain energy

Strain energy

In a molecule, strain energy is released when the constituent atoms are allowed to rearrange themselves in a chemical reaction or a change of chemical conformation in a way that:

* angle strain,
* torsional strain,
* ring strain and/or steric strain,
* Allylic strain, and
* pentane interferenceare reduced [March's Advanced Organic Chemistry: Reactions, Mechanisms, and Structure Michael B. Smith, Jerry March Wiley-Interscience, 5th edition, 2001, ISBN 0-471-58589-0] .

For example, the heat of combustion of cyclopropane (696 kJ/mol) is higher than that of propane (657 kJ/mol) per methylene unit.

Compounds with unusually large strain energy include tetrahedranes, propellanes, cubanes, fenestranes and cyclophanes.

In view aspect of Mechanics: Strain Energy

The external work done on an elastic member in causing it to distort from its unstressed state is transformed into strain energy which is a form of potential energy. The strain energy in the form of elastic deformation is mostly recoverable in the form of mechanical work.

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References


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Look at other dictionaries:

  • Strain energy — Strain energy. См. Упругая энергия. (Источник: «Металлы и сплавы. Справочник.» Под редакцией Ю.П. Солнцева; НПО Профессионал , НПО Мир и семья ; Санкт Петербург, 2003 г.) …   Словарь металлургических терминов

  • strain energy — deformacijos energija statusas T sritis fizika atitikmenys: angl. strain energy vok. Deformationsenergie, f rus. энергия деформации, f pranc. énergie de déformation, f …   Fizikos terminų žodynas

  • Strain energy density function — A strain energy density function or stored energy density function is a scalar valued function that relates the strain energy density of a material to the deformation gradient. : W = ar{W}(oldsymbol{F}) = hat{W}(oldsymbol{C}) =… …   Wikipedia

  • Strain energy release rate — The strain energy release rate (or energy release rate) is the energy dissipated during fracture per unit of newly created fracture surface area. This quantity is central to fracture mechanics because the energy that must be supplied to a crack… …   Wikipedia

  • strain energy — noun The potential energy stored in a body due to elastic deformation …   Wiktionary

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  • total strain energy — deformacijos energija statusas T sritis Standartizacija ir metrologija apibrėžtis Energijos kiekis, sunaudojamas kūnui deformuoti. atitikmenys: angl. deformation energy; total strain energy vok. Deformationsenergie, f rus. энергия деформации, f… …   Penkiakalbis aiškinamasis metrologijos terminų žodynas

  • elastic strain energy — tamprumo energija statusas T sritis fizika atitikmenys: angl. elastic energy; elastic strain energy vok. elastische Energie, f rus. упругая энергия, f; энергия упругости, f pranc. énergie élastique, f …   Fizikos terminų žodynas

  • Elastic strain energy — Elastic strain energy. См. Энергия упругой деформации. (Источник: «Металлы и сплавы. Справочник.» Под редакцией Ю.П. Солнцева; НПО Профессионал , НПО Мир и семья ; Санкт Петербург, 2003 г.) …   Словарь металлургических терминов

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