Abstract
For a both-ends-clamped beam that is subjected to a concentrated load, it had been shown that the actual most suitable form within the same volume exists only under a certain specific condition that a load was in a limited central region of the span. However, the most suitable form is supposed to exist at a condition except for the above. In this paper, we reconsider the optimization problem of a both-ends-clamped beam that is subjected to a concentrated load under the condition of volume constancy as minimization of functions related to displacement and as uniformity of the strain energy density by GA.
