quiz_hdot_m11_14

quiz_hdot_m11_14 - MATERIALS AND STRUCTURES QUIZ FORMULA...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
MATERIALS AND STRUCTURES QUIZ FORMULA AND FACT SHEET Three Great Principles : Equilibrium, Compatibility, Constitutive Relations Two Pretty Good Principles: Superposition and Symmetry ( ) Equilibrium: F ( i ) = 0 M ( i ) + r ( i ) F i = 0 F = force vector, r = position vector of point on line of action of the force, M = moment vector. Structural Analysis: Usually consists of four steps: 1) Idealization of a physical reality to a simpler, idealized model (i.e. a truss with idealized support conditions) 2) Replacement of boundary conditions (pin, roller, clamp, frictional slider) by equipollent forces and moments 3) Calculation of support reactions - usually using a free body diagram 4) Calculate internal forces (stresses) and displacements (strains) Idealized supports: H V V H H M Pin Jointed Trusses - Idealizing assumptions 1. All bars are straight 2. Bar joints are frictionless pins 3. Bars are massless and perfectly rigid (for loading analysis) 4. All loads and reactions are applied at the joints.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 2

quiz_hdot_m11_14 - MATERIALS AND STRUCTURES QUIZ FORMULA...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online