ho1 - Determine applied loads and operating Design

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

View Full Document Right Arrow Icon
MIT, 16.20 Fall, 2002 16.20 HANDOUT #1 Fall, 2002 Review of Design Considerations OVERVIEW OF STRUCTURAL DESIGN PROCESS Purpose : Assure “structural integrity” while minimizing cost Structural integrity: “Capability of a structure to carry out the operation for which it was designed” Aspects to consider: Loads Deformations Corrosion Fatigue/Long life Factors in Determining cost: Material Waste amount Manufacturing Weight Subassembly/Assembly Durability and maintenance Useful life Repair Paul A. Lagace 2002 Handout 1 - 1
Background image of page 1

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

View Full DocumentRight Arrow Icon
MIT, 16.20 Fall, 2002 STRUCTURAL DESIGN PROCESS 5. Determine capability of structure to carry loads (of box 2) subject to design restrictions (of box 1) 4. 3. size components 2. environment to which structure is subjected 1. 2 1 Manufacturing & Maintenance considered throughout Determine internal stresses and deflections Layout structural arrangement, select materials,
Background image of page 2
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Determine applied loads and operating Design restrictions/specifications SOURCES OF APPLED LOADS (and resulting stresses and strains) Normal operative environment Environmental effects Isolated effects/special conditions TERMINOLOGY Limit load/stress/condition: maximum load/stress/condition where structure shows no permanent deformation (operationally defined as maximum condition the structure is expected to see under normal operation) Ultimate load/stress/condition: maximum load/stress/condition where structure does not fail (operationally defined as limit condition times factor of safety). Ultimate Factor of Safety = Ultimate Condition (design value) Limit Condition Margin of Safety = Tested Value Design Value (experimental reality) Design Value Definition of failure depends on operational requirements. Paul A. Lagace 2002 Handout 1-2...
View Full Document

This note was uploaded on 02/03/2012 for the course AERO 16.20 taught by Professor Paullagace during the Fall '02 term at MIT.

Page1 / 2

ho1 - Determine applied loads and operating Design

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