Residual-Based Bossak Scheme

Latest revision as of 01:00, 24 March 2016

Definition

Scheme for the integration of a dynamic problem using the Newmark approach with a generalized Alpha-Method particularized for Bossak.

Constructor Main Data

1. Dynamic : [0.0] or [1.0] ( by default dynamic : 1.0 )
2. Alpha : ( acceleration [-0.3 to 0] )
3. Newmark Beta : ( by default [Beta = 0.25 * (1-Alpha) * (1-Alpha)] )
4. Newmark Gamma : ( by default [Gamma = 0.5 - Alpha] )

Main Methods

For the general system build:

Predict(...)
Update(...)

For the dynamics:

UpdateVelocity(...)
UpdateAcceleration(...)

For each Element:

CalculateSystemContributions(...)
Calculate_RHS_Contribution(...)
Calculate_LHS_Contribution(...)

For each Condition:

Condition_CalculateSystemContributions(...)
Condition_Calculate_RHS_Contribution(...)
Condition_Calculate_LHS_Contribution(...)

More information can be found in the scheme.h base class.