{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

ME85-Lecture26

ME85-Lecture26 - Lecture 26 Introduction to Stability...

Info iconThis preview shows pages 1–17. Sign up to view the full content.

View Full Document Right Arrow Icon

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

View Full Document Right Arrow Icon

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

View Full Document Right Arrow Icon

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

View Full Document Right Arrow Icon

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

View Full Document Right Arrow Icon

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

View Full Document Right Arrow Icon

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

View Full Document Right Arrow Icon

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

View Full Document Right Arrow Icon

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

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Lecture 26 Introduction to Stability Marble Analogy • Consider model with two rods and torsional spring. After a small perturbation, ( ) moment ing destabiliz 2 sin 2 moment restoring 2 = Δ = Δ = Δ θ θ θ L P L P K • Column is stable (tends to return to aligned orientation) if ( ) L K P P K L P cr 4 2 2 = < Δ < Δ θ θ • Assume that a load P is applied. After a perturbation, the system settles to a new equilibrium configuration at a finite deflection angle. ( ) θ θ θ θ sin 4 2 sin 2 = = = cr P P K PL K L P • Noting that sin θ < θ , the assumed configuration is only possible if P > P cr . 1.The objective of structure stability analysis is to find the critical load for designed equilibrium state . 2. In order to find the critical load, one has to study neutral equilibrium condition. Lecture 27 Buckling of Elastic Columns Stability of Structures • In the design of columns, cross-sectional area is selected such that- allowable stress is not exceeded all A P σ σ ≤...
View Full Document

{[ snackBarMessage ]}

Page1 / 33

ME85-Lecture26 - Lecture 26 Introduction to Stability...

This preview shows document pages 1 - 17. Sign up to view the full document.

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