ENGINEERING SIMULATIONS AND ANALYSIS (M51MAE) GROUP PRESENTATION

ENGINEERING SIMULATIONS AND ANALYSIS (M51MAE)

GROUP PRESENTATION

NOOR ANIS BINTI MASIRAN (6II5690)SITI RODIAH BINTI MOHD KASSIM (6251404)OUTLINERecap from previous lecture - MATLAB - Examples

Direct method (spring element)Linear static analysis (bar element)BEHAVIOR OF A LINEAR SPRINGHookes LawF = kdF = Force in the spring d = deflection of the springk = stiffness of the springFdFxkkdk1

2002 Brooks/Cole Publishing / Thomson Learning

DIRECT ASSEMBLY OF THE GLOBAL STIFFNESS MATRIXElement 2

k1k2F1xF2xF3xx123Element 1Element 2d1xd2xd3x

The element stiffness matrix is symmetric The element stiffness matrix is singularF1F2F4F3EXAMPLEk1k2k5k3k4

k1=500N/mk2=100N/mF3x=5Nx123Element 1Element 2d1x=0d2xd3xLINEAR STATIC ANALYSIS: BAR ELEMENT

Node 1 and 2 at fixed walls. F3 = 5 N