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ADPO10769 Occurrence of Corrosion in Airframes
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This standard contains materiel acquisition program planning and engineering direction ...
MIL-R-7885D General Specification for Rivets, Blind, Structural, Mechanically Locked Spindle and Friction Locked Spindle
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NASA-CR-4750

NASA-CR-4750
  • Version
  • 167 Downloads
  • 2.24 MB File Size
  • 1 File Count
  • April 6, 2016 Create Date
  • April 6, 2016 Last Updated
Scroll for Details

Handbook of Analytical Methods for Textile Composites

NASA-CR-4750 Handbook of Analytical Methods for Textile Composites

1 .0 INTRODUCTION
1 . 1 Scope

The purpose of this handbook is to introduce models and computer codes for
predicting the properties of textile composites. The composites of primary interest are those
best suited to applications in aircraft structures. This is first to say those ranked high in
stiffness and strength; and many models are therefore discussed which detail the elastic
regime and predict the proportional limit. But textile composites are also favoured for their
superior damage tolerance. The handbook therefore includes several models for predicting
the stress-strain response all the way to ultimate failure; methods for assessing work of
fracture and notch sensitivity; and design rules for avoiding certain critical mechanisms of

failure, such as delamination, by proper textile design.
The textile classes receiving at least some treatment are:

(i) 2D woven laminates

(ii) 2D braided laminates
(iii) laminates of knitted plies
(iv) stitched laminates

(v) 3D interlock weaves

(vi) 3D braids

(vii) 3D nonwoven composites.

The fiber and matrix materials need not be specified until the models are applied to a
particular material. However, many models are based on assumptions that may be invalid if
the degree of anisotropy is not as high as it is for stiff fibers such as carbon or glass in a
polymeric matrix. Models assuming high anisotropy would not be appropriate for ceramic
or metal matrix composites. Readers working with ceramics or metals should exercise

caution accordingly.

The handbook deals mainly with models for textile composites manufactured as flat
panels, with limited attention to curved panels. Yet one of the longer term attractions of
textiles is that they promise a method of manufacturing net shape, integral structures,
eliminating many machining and joining steps in manufacture, cutting material waste,

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NASA-CR-4750 Handbook of Analytical Methods for Textile Composites.pdfDownload 

NASA-CR-4750

NASA-CR-4750
  • Version
  • 167 Downloads
  • 2.24 MB File Size
  • 1 File Count
  • April 6, 2016 Create Date
  • April 6, 2016 Last Updated
Scroll for Details

Handbook of Analytical Methods for Textile Composites

NASA-CR-4750 Handbook of Analytical Methods for Textile Composites

1 .0 INTRODUCTION
1 . 1 Scope

The purpose of this handbook is to introduce models and computer codes for
predicting the properties of textile composites. The composites of primary interest are those
best suited to applications in aircraft structures. This is first to say those ranked high in
stiffness and strength; and many models are therefore discussed which detail the elastic
regime and predict the proportional limit. But textile composites are also favoured for their
superior damage tolerance. The handbook therefore includes several models for predicting
the stress-strain response all the way to ultimate failure; methods for assessing work of
fracture and notch sensitivity; and design rules for avoiding certain critical mechanisms of

failure, such as delamination, by proper textile design.
The textile classes receiving at least some treatment are:

(i) 2D woven laminates

(ii) 2D braided laminates
(iii) laminates of knitted plies
(iv) stitched laminates

(v) 3D interlock weaves

(vi) 3D braids

(vii) 3D nonwoven composites.

The fiber and matrix materials need not be specified until the models are applied to a
particular material. However, many models are based on assumptions that may be invalid if
the degree of anisotropy is not as high as it is for stiff fibers such as carbon or glass in a
polymeric matrix. Models assuming high anisotropy would not be appropriate for ceramic
or metal matrix composites. Readers working with ceramics or metals should exercise

caution accordingly.

The handbook deals mainly with models for textile composites manufactured as flat
panels, with limited attention to curved panels. Yet one of the longer term attractions of
textiles is that they promise a method of manufacturing net shape, integral structures,
eliminating many machining and joining steps in manufacture, cutting material waste,

FileAction
NASA-CR-4750 Handbook of Analytical Methods for Textile Composites.pdfDownload 
17,003 Documents in our Technical Library
1362065 Total Downloads

Search The Technical Library

Newest Additions

ADPO10769 Occurrence of Corrosion in Airframes
The purpose of this lecture is to provide an overview ...
MIL-STD-1759 Rivets and Rivet Type Fasteners Preferred for Design
The purpose of this book form standard is to provide ...
MIL-STD-810G Environmental Engineering Considerations and Laboratory Tests
This standard contains materiel acquisition program planning and engineering direction ...
MIL-R-7885D General Specification for Rivets, Blind, Structural, Mechanically Locked Spindle and Friction Locked Spindle
This specification covers mechanically locked spindle and  friction locked spindle ...
MIL-HDBK-132A Protective Finishes for Metal and Wood Surfaces
The primary object of this handbook is to provide a ...