# Residual-Based Bossak Scheme

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## 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 **

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