The Direct Stiffness Method
It is common to have Eq.(1) in a form where and are, respectively, the member-end displacements and forces matching in direction with r and R. In such case, and can be obtained by direct summation of the members' matrices and . The method is then known as the direct stiffness method.
The advantages and disadvantages of the matrix stiffness method are compared and discussed in the flexibility method article.
Read more about this topic: Direct Stiffness Method
Famous quotes containing the words direct, stiffness and/or method:
“I, who travel most often for my pleasure, do not direct myself so badly. If it looks ugly on the right, I take the left; if I find myself unfit to ride my horse, I stop.... Have I left something unseen behind me? I go back; it is still on my road. I trace no fixed line, either straight or crooked.”
—Michel de Montaigne (1533–1592)
“Everything ponderous, viscous, and solemnly clumsy, all long- winded and boring types of style are developed in profuse variety among Germans—forgive me the fact that even Goethe’s prose, in its mixture of stiffness and elegance, is no exception, being a reflection of the “good old time” to which it belongs, and a reflection of German taste at a time when there still was a “German taste”Ma rococo taste in moribus et artibus.”
—Friedrich Nietzsche (1844–1900)
“I know no method to secure the repeal of bad or obnoxious laws so effective as their stringent execution.”
—Ulysses S. Grant (1822–1885)