Application of Advanced Composites to Helicopter Structures Design

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Introduction Nothing can replace hands on shop experience as a prerequisite to good composite design. Without it, the design approach is based on intuition and theory alone, or at best, guided by manufacturing engineers. “A good design is unacceptable if it is unaffordable. ” 1

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Material Selection: Tape -vs- Fabric 2

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Cocuring Assembly Examples 3

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Secondary Bonding Assembly Examples 4

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Corners 5

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Part Contour Limitations 6

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Surface Smoothness 7

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Ply Arrangement Guidelines 8

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Hole Drilling Guidelines 9

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Bonded Joint - Failure Modes 10

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Bonded Joint - Failure Modes (contd. ) 11

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Highly Recommended 12

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Joint Types 13

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Affect of Adherened Stiffness on Loads in a Single Lap Joint 14

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Affect of Joint Length on Sheer Stress in a Single Lap Joint 15

Application of Advanced Composites to Helicopter Structures Design for Manufacturing The fillet of adhesive plays an important role in joint strength. 16

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Finite Element Studies Stress Distributions -vs- Joint Type 17

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Ply Splices and Drop-Offs 18

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Maximum Taper Rate 19

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Mechanical Joint Failure Modes 20

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Mechanical Joint Design 21

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Fastener Selection for Corrosion Prevention 22

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Fastener Selection 23

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Honeycomb Sandwich Construction 24

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Failure Modes for Sandwich Beams Subjected to Loading Normal to the Faces 25

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Modes of Failures may also occur from a combination of two or more of these modes. 26

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Honeycomb Sandwich: Edgeband Attachments 27

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Examples of Sandwich Attachments 28

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Honeycomb Sandwich Edge Closure Concepts 29

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Core Costs 30

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Core Compressive Strengths 31

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Core Shear Strengths 32

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Core Shear Modulus 33

Application of Advanced Composites to Helicopter Structures Design for Manufacturing Core type has negligible effect on beam stiffness. 34