Residual Stresses in Resin Matrix Composites View Full Text


Ontology type: schema:Chapter     


Chapter Info

DATE

1982

AUTHORS

Paul Predecki , Charles S. Barrett

ABSTRACT

By embedding crystalline filler particles in resin matrix laminates during layup, strains that are transferred to the particles were measured by X-ray diffraction. In tensile tests of unidirectional graphite-fiber/epoxy laminates with Al particles between the first and second plies the X-ray strains increased linearly and reversibly with applied stress up to stress levels that initiated yielding in the filler. Residual stresses in the particles resulting from curing were found to be 5, -34 and -53 MPa in fiber, transverse and thickness directions, respectively, in a specimen dried 7 days at 50°C. Residual stresses in the resin were computed from tensile data and the residual stress data from the particles; neglecting transverse stresses, the residual stress in the fiber direction in the resin was computed to be 8.1 MPa (1.2 ksi). Differential thermal contraction from 177°C to 21°C of matrix and fibers in the absence of particles would lead to a prediction of 25 MPa (3.6 ksi); the former computed value for the filled composite was smaller than this presumably in part because of the inhibition of the contraction of the matrix by the closely spaced particles in the layer between the plies. The difference between the residual stresses in the lateral and thickness directions is also ascribed to this particle interaction. Residual stresses in Al particles of a quasi-isotropic (0, +60, −60)s laminate were not reduced by annealing either in the ambient or in a desiccator at temperatures between 50°C and 175°C; after annealing one hr at 175°C they were 42 and 40 MPa along 0° and 90° directions in the plane of the specimen, respectively, and −29 MPa normal to this plane. Diffraction angles were strongly influenced by moisture content, suggesting the method could be developed as a non-destructive test for moisture content. In quasi-isotropic specimens residual stresses parallel to the surface were tensile when the specimens were dry but were reduced to zero by holding about 150 hrs in 100% relative humidity at 50°C. Substantial stresses remain after 490 hrs at 50°C and 50% relative humidity. There was evidence that the stresses depend to some extent on the moisture history of the specimen. Correlations between the X-ray data and moisture diffusion data were made. More... »

PAGES

409-424

Book

TITLE

Residual Stress and Stress Relaxation

ISBN

978-1-4899-1886-4
978-1-4899-1884-0

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/978-1-4899-1884-0_23

DOI

http://dx.doi.org/10.1007/978-1-4899-1884-0_23

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1005668540


Indexing Status Check whether this publication has been indexed by Scopus and Web Of Science using the SN Indexing Status Tool
Incoming Citations Browse incoming citations for this publication using opencitations.net

JSON-LD is the canonical representation for SciGraph data.

TIP: You can open this SciGraph record using an external JSON-LD service: JSON-LD Playground Google SDTT

[
  {
    "@context": "https://springernature.github.io/scigraph/jsonld/sgcontext.json", 
    "about": [
      {
        "id": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/09", 
        "inDefinedTermSet": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/", 
        "name": "Engineering", 
        "type": "DefinedTerm"
      }, 
      {
        "id": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/0912", 
        "inDefinedTermSet": "http://purl.org/au-research/vocabulary/anzsrc-for/2008/", 
        "name": "Materials Engineering", 
        "type": "DefinedTerm"
      }
    ], 
    "author": [
      {
        "affiliation": {
          "alternateName": "University of Denver, 80208, Denver, Colorado, USA", 
          "id": "http://www.grid.ac/institutes/grid.266239.a", 
          "name": [
            "University of Denver, 80208, Denver, Colorado, USA"
          ], 
          "type": "Organization"
        }, 
        "familyName": "Predecki", 
        "givenName": "Paul", 
        "id": "sg:person.012203161513.83", 
        "sameAs": [
          "https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.012203161513.83"
        ], 
        "type": "Person"
      }, 
      {
        "affiliation": {
          "alternateName": "University of Denver, 80208, Denver, Colorado, USA", 
          "id": "http://www.grid.ac/institutes/grid.266239.a", 
          "name": [
            "University of Denver, 80208, Denver, Colorado, USA"
          ], 
          "type": "Organization"
        }, 
        "familyName": "Barrett", 
        "givenName": "Charles S.", 
        "id": "sg:person.011237717223.31", 
        "sameAs": [
          "https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.011237717223.31"
        ], 
        "type": "Person"
      }
    ], 
    "datePublished": "1982", 
    "datePublishedReg": "1982-01-01", 
    "description": "By embedding crystalline filler particles in resin matrix laminates during layup, strains that are transferred to the particles were measured by X-ray diffraction. In tensile tests of unidirectional graphite-fiber/epoxy laminates with Al particles between the first and second plies the X-ray strains increased linearly and reversibly with applied stress up to stress levels that initiated yielding in the filler. Residual stresses in the particles resulting from curing were found to be 5, -34 and -53 MPa in fiber, transverse and thickness directions, respectively, in a specimen dried 7 days at 50\u00b0C. Residual stresses in the resin were computed from tensile data and the residual stress data from the particles; neglecting transverse stresses, the residual stress in the fiber direction in the resin was computed to be 8.1 MPa (1.2 ksi). Differential thermal contraction from 177\u00b0C to 21\u00b0C of matrix and fibers in the absence of particles would lead to a prediction of 25 MPa (3.6 ksi); the former computed value for the filled composite was smaller than this presumably in part because of the inhibition of the contraction of the matrix by the closely spaced particles in the layer between the plies. The difference between the residual stresses in the lateral and thickness directions is also ascribed to this particle interaction. Residual stresses in Al particles of a quasi-isotropic (0, +60, \u221260)s laminate were not reduced by annealing either in the ambient or in a desiccator at temperatures between 50\u00b0C and 175\u00b0C; after annealing one hr at 175\u00b0C they were 42 and 40 MPa along 0\u00b0 and 90\u00b0 directions in the plane of the specimen, respectively, and \u221229 MPa normal to this plane. Diffraction angles were strongly influenced by moisture content, suggesting the method could be developed as a non-destructive test for moisture content. In quasi-isotropic specimens residual stresses parallel to the surface were tensile when the specimens were dry but were reduced to zero by holding about 150 hrs in 100% relative humidity at 50\u00b0C. Substantial stresses remain after 490 hrs at 50\u00b0C and 50% relative humidity. There was evidence that the stresses depend to some extent on the moisture history of the specimen. Correlations between the X-ray data and moisture diffusion data were made.", 
    "editor": [
      {
        "familyName": "Kula", 
        "givenName": "Eric", 
        "type": "Person"
      }, 
      {
        "familyName": "Weiss", 
        "givenName": "Volker", 
        "type": "Person"
      }
    ], 
    "genre": "chapter", 
    "id": "sg:pub.10.1007/978-1-4899-1884-0_23", 
    "inLanguage": "en", 
    "isAccessibleForFree": false, 
    "isPartOf": {
      "isbn": [
        "978-1-4899-1886-4", 
        "978-1-4899-1884-0"
      ], 
      "name": "Residual Stress and Stress Relaxation", 
      "type": "Book"
    }, 
    "keywords": [
      "residual stresses", 
      "thickness direction", 
      "non-destructive tests", 
      "moisture content", 
      "resin matrix composites", 
      "differential thermal contraction", 
      "residual stress data", 
      "crystalline filler particles", 
      "matrix composites", 
      "matrix laminates", 
      "absence of particles", 
      "tensile tests", 
      "second plies", 
      "filler particles", 
      "transverse stresses", 
      "tensile data", 
      "thermal contraction", 
      "fiber direction", 
      "relative humidity", 
      "spaced particles", 
      "laminates", 
      "applied stress", 
      "stress data", 
      "MPa", 
      "moisture history", 
      "particle interactions", 
      "plies", 
      "composites", 
      "stress levels", 
      "particles", 
      "ray diffraction", 
      "diffraction angle", 
      "resin", 
      "specimen", 
      "layup", 
      "stress", 
      "humidity", 
      "filler", 
      "fibers", 
      "diffusion data", 
      "substantial stress", 
      "direction", 
      "matrix", 
      "layer", 
      "ambient", 
      "plane", 
      "temperature", 
      "surface", 
      "diffraction", 
      "al", 
      "transverse", 
      "test", 
      "desiccator", 
      "angle", 
      "content", 
      "prediction", 
      "specimens", 
      "method", 
      "data", 
      "values", 
      "part", 
      "rays", 
      "interaction", 
      "correlation", 
      "extent", 
      "contraction", 
      "differences", 
      "ray data", 
      "levels", 
      "hr", 
      "absence", 
      "days", 
      "history", 
      "evidence", 
      "inhibition", 
      "resin matrix laminates", 
      "quasi-isotropic specimens residual stresses", 
      "specimens residual stresses", 
      "moisture diffusion data"
    ], 
    "name": "Residual Stresses in Resin Matrix Composites", 
    "pagination": "409-424", 
    "productId": [
      {
        "name": "dimensions_id", 
        "type": "PropertyValue", 
        "value": [
          "pub.1005668540"
        ]
      }, 
      {
        "name": "doi", 
        "type": "PropertyValue", 
        "value": [
          "10.1007/978-1-4899-1884-0_23"
        ]
      }
    ], 
    "publisher": {
      "name": "Springer Nature", 
      "type": "Organisation"
    }, 
    "sameAs": [
      "https://doi.org/10.1007/978-1-4899-1884-0_23", 
      "https://app.dimensions.ai/details/publication/pub.1005668540"
    ], 
    "sdDataset": "chapters", 
    "sdDatePublished": "2022-01-01T19:13", 
    "sdLicense": "https://scigraph.springernature.com/explorer/license/", 
    "sdPublisher": {
      "name": "Springer Nature - SN SciGraph project", 
      "type": "Organization"
    }, 
    "sdSource": "s3://com-springernature-scigraph/baseset/20220101/entities/gbq_results/chapter/chapter_22.jsonl", 
    "type": "Chapter", 
    "url": "https://doi.org/10.1007/978-1-4899-1884-0_23"
  }
]
 

Download the RDF metadata as:  json-ld nt turtle xml License info

HOW TO GET THIS DATA PROGRAMMATICALLY:

JSON-LD is a popular format for linked data which is fully compatible with JSON.

curl -H 'Accept: application/ld+json' 'https://scigraph.springernature.com/pub.10.1007/978-1-4899-1884-0_23'

N-Triples is a line-based linked data format ideal for batch operations.

curl -H 'Accept: application/n-triples' 'https://scigraph.springernature.com/pub.10.1007/978-1-4899-1884-0_23'

Turtle is a human-readable linked data format.

curl -H 'Accept: text/turtle' 'https://scigraph.springernature.com/pub.10.1007/978-1-4899-1884-0_23'

RDF/XML is a standard XML format for linked data.

curl -H 'Accept: application/rdf+xml' 'https://scigraph.springernature.com/pub.10.1007/978-1-4899-1884-0_23'


 

This table displays all metadata directly associated to this object as RDF triples.

151 TRIPLES      23 PREDICATES      105 URIs      98 LITERALS      7 BLANK NODES

Subject Predicate Object
1 sg:pub.10.1007/978-1-4899-1884-0_23 schema:about anzsrc-for:09
2 anzsrc-for:0912
3 schema:author N724b9f719b674952a7bbfa256057466d
4 schema:datePublished 1982
5 schema:datePublishedReg 1982-01-01
6 schema:description By embedding crystalline filler particles in resin matrix laminates during layup, strains that are transferred to the particles were measured by X-ray diffraction. In tensile tests of unidirectional graphite-fiber/epoxy laminates with Al particles between the first and second plies the X-ray strains increased linearly and reversibly with applied stress up to stress levels that initiated yielding in the filler. Residual stresses in the particles resulting from curing were found to be 5, -34 and -53 MPa in fiber, transverse and thickness directions, respectively, in a specimen dried 7 days at 50°C. Residual stresses in the resin were computed from tensile data and the residual stress data from the particles; neglecting transverse stresses, the residual stress in the fiber direction in the resin was computed to be 8.1 MPa (1.2 ksi). Differential thermal contraction from 177°C to 21°C of matrix and fibers in the absence of particles would lead to a prediction of 25 MPa (3.6 ksi); the former computed value for the filled composite was smaller than this presumably in part because of the inhibition of the contraction of the matrix by the closely spaced particles in the layer between the plies. The difference between the residual stresses in the lateral and thickness directions is also ascribed to this particle interaction. Residual stresses in Al particles of a quasi-isotropic (0, +60, −60)s laminate were not reduced by annealing either in the ambient or in a desiccator at temperatures between 50°C and 175°C; after annealing one hr at 175°C they were 42 and 40 MPa along 0° and 90° directions in the plane of the specimen, respectively, and −29 MPa normal to this plane. Diffraction angles were strongly influenced by moisture content, suggesting the method could be developed as a non-destructive test for moisture content. In quasi-isotropic specimens residual stresses parallel to the surface were tensile when the specimens were dry but were reduced to zero by holding about 150 hrs in 100% relative humidity at 50°C. Substantial stresses remain after 490 hrs at 50°C and 50% relative humidity. There was evidence that the stresses depend to some extent on the moisture history of the specimen. Correlations between the X-ray data and moisture diffusion data were made.
7 schema:editor Na78ec53f213642758caf74850449203c
8 schema:genre chapter
9 schema:inLanguage en
10 schema:isAccessibleForFree false
11 schema:isPartOf N65bc346b46de4f8b8bdfdff29d20e865
12 schema:keywords MPa
13 absence
14 absence of particles
15 al
16 ambient
17 angle
18 applied stress
19 composites
20 content
21 contraction
22 correlation
23 crystalline filler particles
24 data
25 days
26 desiccator
27 differences
28 differential thermal contraction
29 diffraction
30 diffraction angle
31 diffusion data
32 direction
33 evidence
34 extent
35 fiber direction
36 fibers
37 filler
38 filler particles
39 history
40 hr
41 humidity
42 inhibition
43 interaction
44 laminates
45 layer
46 layup
47 levels
48 matrix
49 matrix composites
50 matrix laminates
51 method
52 moisture content
53 moisture diffusion data
54 moisture history
55 non-destructive tests
56 part
57 particle interactions
58 particles
59 plane
60 plies
61 prediction
62 quasi-isotropic specimens residual stresses
63 ray data
64 ray diffraction
65 rays
66 relative humidity
67 residual stress data
68 residual stresses
69 resin
70 resin matrix composites
71 resin matrix laminates
72 second plies
73 spaced particles
74 specimen
75 specimens
76 specimens residual stresses
77 stress
78 stress data
79 stress levels
80 substantial stress
81 surface
82 temperature
83 tensile data
84 tensile tests
85 test
86 thermal contraction
87 thickness direction
88 transverse
89 transverse stresses
90 values
91 schema:name Residual Stresses in Resin Matrix Composites
92 schema:pagination 409-424
93 schema:productId N2f91ba9707a3496184efc4cab7012a3e
94 Nd4bed8344fd04a7d88ba52732d2d6fee
95 schema:publisher N26d52067c8204ab6bb1cce239da7fc5e
96 schema:sameAs https://app.dimensions.ai/details/publication/pub.1005668540
97 https://doi.org/10.1007/978-1-4899-1884-0_23
98 schema:sdDatePublished 2022-01-01T19:13
99 schema:sdLicense https://scigraph.springernature.com/explorer/license/
100 schema:sdPublisher N41f37a7ddebf4c42ad37b3ff2d26ec21
101 schema:url https://doi.org/10.1007/978-1-4899-1884-0_23
102 sgo:license sg:explorer/license/
103 sgo:sdDataset chapters
104 rdf:type schema:Chapter
105 N26d52067c8204ab6bb1cce239da7fc5e schema:name Springer Nature
106 rdf:type schema:Organisation
107 N2f91ba9707a3496184efc4cab7012a3e schema:name doi
108 schema:value 10.1007/978-1-4899-1884-0_23
109 rdf:type schema:PropertyValue
110 N41f37a7ddebf4c42ad37b3ff2d26ec21 schema:name Springer Nature - SN SciGraph project
111 rdf:type schema:Organization
112 N65bc346b46de4f8b8bdfdff29d20e865 schema:isbn 978-1-4899-1884-0
113 978-1-4899-1886-4
114 schema:name Residual Stress and Stress Relaxation
115 rdf:type schema:Book
116 N724b9f719b674952a7bbfa256057466d rdf:first sg:person.012203161513.83
117 rdf:rest N7a690416c05f42eca51fb565125493a8
118 N7a690416c05f42eca51fb565125493a8 rdf:first sg:person.011237717223.31
119 rdf:rest rdf:nil
120 Na659f5660d3a48bca7adef7c3b4cb706 schema:familyName Kula
121 schema:givenName Eric
122 rdf:type schema:Person
123 Na78ec53f213642758caf74850449203c rdf:first Na659f5660d3a48bca7adef7c3b4cb706
124 rdf:rest Nd6964f3288e847559558ead95972faf5
125 Nd4bed8344fd04a7d88ba52732d2d6fee schema:name dimensions_id
126 schema:value pub.1005668540
127 rdf:type schema:PropertyValue
128 Nd6964f3288e847559558ead95972faf5 rdf:first Nf66afec9eee2472f8b024f78a020af40
129 rdf:rest rdf:nil
130 Nf66afec9eee2472f8b024f78a020af40 schema:familyName Weiss
131 schema:givenName Volker
132 rdf:type schema:Person
133 anzsrc-for:09 schema:inDefinedTermSet anzsrc-for:
134 schema:name Engineering
135 rdf:type schema:DefinedTerm
136 anzsrc-for:0912 schema:inDefinedTermSet anzsrc-for:
137 schema:name Materials Engineering
138 rdf:type schema:DefinedTerm
139 sg:person.011237717223.31 schema:affiliation grid-institutes:grid.266239.a
140 schema:familyName Barrett
141 schema:givenName Charles S.
142 schema:sameAs https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.011237717223.31
143 rdf:type schema:Person
144 sg:person.012203161513.83 schema:affiliation grid-institutes:grid.266239.a
145 schema:familyName Predecki
146 schema:givenName Paul
147 schema:sameAs https://app.dimensions.ai/discover/publication?and_facet_researcher=ur.012203161513.83
148 rdf:type schema:Person
149 grid-institutes:grid.266239.a schema:alternateName University of Denver, 80208, Denver, Colorado, USA
150 schema:name University of Denver, 80208, Denver, Colorado, USA
151 rdf:type schema:Organization
 




Preview window. Press ESC to close (or click here)


...