Mediaspace scheduled maintenance: Aug 25, 2026 07:00 - 12:00 AM. During this time, videos will be temporarily unavailable. Check status updates.

Lecture

Column Buckling Theory

Description

This lecture covers the theory of column buckling, discussing the slenderness ratio, types of loads, failure modes, and classification of columns based on length and material. It also explores Euler's formula for critical loads and the behavior of ideal columns under axial loads.

Official source

Related concepts (26)

Buckling

In structural engineering, buckling is the sudden change in shape (deformation) of a structural component under load, such as the bowing of a column under compression or the wrinkling of a plate under shear. If a structure is subjected to a gradually increasing load, when the load reaches a critical level, a member may suddenly change shape and the structure and component is said to have buckled. Euler's critical load and Johnson's parabolic formula are used to determine the buckling stress of a column.

Failure mode and effects analysis

Failure mode and effects analysis (FMEA; often written with "failure modes" in plural) is the process of reviewing as many components, assemblies, and subsystems as possible to identify potential failure modes in a system and their causes and effects. For each component, the failure modes and their resulting effects on the rest of the system are recorded in a specific FMEA worksheet. There are numerous variations of such worksheets.

Failure cause

Failure causes are defects in design, process, quality, or part application, which are the underlying cause of a failure or which initiate a process which leads to failure. Where failure depends on the user of the product or process, then human error must be considered. A part failure mode is the way in which a component failed "functionally" on the component level. Often a part has only a few failure modes. For example, a relay may fail to open or close contacts on demand.

Failure rate

Failure rate is the frequency with which an engineered system or component fails, expressed in failures per unit of time. It is usually denoted by the Greek letter λ (lambda) and is often used in reliability engineering. The failure rate of a system usually depends on time, with the rate varying over the life cycle of the system. For example, an automobile's failure rate in its fifth year of service may be many times greater than its failure rate during its first year of service.

Column

A column or pillar in architecture and structural engineering is a structural element that transmits, through compression, the weight of the structure above to other structural elements below. In other words, a column is a compression member. The term column applies especially to a large round support (the shaft of the column) with a capital and a base or pedestal, which is made of stone, or appearing to be so. A small wooden or metal support is typically called a post.

Related lectures (30)

Seismic Behaviour of Unreinforced Masonry Buildings

Explores the seismic vulnerability and behavior of unreinforced masonry buildings, covering failure modes, structural features, and in-plane behavior.

In-plane behaviour: URM walls

Explores the seismic behavior and strength capacity of URM walls, including effective stiffness and drift capacity.

Harmonic Response: Theory

Covers the theory of harmonic response, including decomposition into simple elements and stable system behavior.

Mathematical Functions: Theory and Applications

Covers the theory and applications of mathematical functions, including polynomial, trigonometric, and exponential functions.

Risk Diagnostic and Analysis