tangent stiffness matrix

基本解释

For geometrical nonlinearity, Updated Lagrangian formulations are adopted to derive the tangent stiffness matrix.
列式法求解切線剛度矩陣來考慮幾何非線性。
Numerical calculation process to obtain the tangent stiffness matrix of structure is deduced and geometric stability of different types of structures are analyzed.
推導了鉸接杆系結搆切線剛度矩陣較爲簡便的計算生成過程，便於在編程中實現。
As a result, the element tangent stiffness matrix is symmetric and is updated by using the total values of the nodal variables in an incremental solution procedure.
因而，得到的單元切線剛度矩陣是對稱的，此外在增量求解過程中用節點變量的全量進行更新。