31. The amount of strain energy in bicyclic systems is commonly the sum of the strain energy in each individual ring. 32. The energy difference between gauche and anti is 0.9 kcal / mol associated with the strain energy of the gauche conformer. 33. For a given amplitude, the strain energy W E is proportional to Y . Let us consider a few special cases. 34. To circumvent this limitation, many jumping species slowly pre-stretch elastic elements, such as tendons or apodemes, to store work as strain energy . 35. Strain energy density in a material is proportional to the product of its Young's modulus and the square of the applied strain.36. Therefore, in order for the strain energy density to be high the value of A / A _ t should be large. 37. A CNT spring can store elastic strain energy with a density several orders of magnitude higher than conventional springs made of steel. 38. If the experimental ?H f o differs from the predicted ?H f o, this difference in energy can be attributed to strain energy . 39. This simple result indicates that the strain energy of a composition modulation depends only on the amplitude and is independent of the wavelength. 40. Thus yield occurs when the strain energy per unit volume is greater than the strain energy at the elastic limit in simple tension.