Buckling_lab_manual

Buckling_lab_manual - Duke University Pratt School of...

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

View Full Document Right Arrow Icon
Duke University Pratt School of Engineering EGR 75L — Mechanics of Solids Laboratory #4 Buckling of Columns 1 Introduction and Objectives When a column is subjected to a compressive force, it will fail in one of two ways. If the slenderness ratio, L/r, is small, it will fail by compressive yielding or cracking when the compressive stress exceeds the yield stress of the material. However, for a long thin member, the compressive forces can induce sudden changes in geometry, such as bowing or bending. This occurs when the compressive stress is still well within the range of linear elasticity, but the change in geometry can destroy the column’s equilibrium and leads to collapse. This failure is called buckling, and it is an example of an elastic instability. The objective of this laboratory is to introduce students to the buckling test and to evaluate the effect that specimen length and thickness have on the failure load. Before the lab, students should compute the theoretical failure loads for each specimen using Euler’s equation for column buckling,
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 / 4

Buckling_lab_manual - Duke University Pratt School of...

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