ISO 23930:2023

Fibre-reinforced plastic composites — Full-section compressive test for pultruded profiles

This document specifies a method for determining the compressive properties in the pultruded fibre reinforced plastic (FRP) using full-section compressive tests. It is applicable to pultruded FRP profiles. The scope is not limited to types of fibres and resins.

Titre manque

General Information

• Status: Published
• Publication Date: 30-Jan-2023
• ICS: 83.120 - Reinforced plastics
• Technical Committee: ISO/TC 61/SC 13 - Composites and reinforcement fibres
• Drafting Committee: ISO/TC 61/SC 13/WG 2 - Laminates and moulding compounds
• Current Stage: 6060 - International Standard published
• Start Date: 31-Jan-2023
• Due Date: 18-Mar-2023
• Completion Date: 31-Jan-2023

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 23930
First edition
2023-01
Fibre-reinforced plastic composites —
Full-section compressive test for
pultruded profiles
Reference number
ISO 23930:2023(E)
© ISO 2023

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ISO 23930:2023(E)
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© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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ISO 23930:2023(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 3
5.1 Test machine . 3
5.2 Compression platens . 3
5.3 Strain indicator . 3
6 Specimens. 4
6.1 Geometry . 4
6.2 Preparation of specimens . 4
6.3 Number of test specimens . 4
6.4 Sampling of test specimens . 4
6.5 Conditioning atmosphere. 4
7 Test procedure .5
7.1 Test atmosphere . 5
7.2 Measurement of initial dimensions of test specimen . 5
7.3 Test speed . 5
8 Calculation and expression results . 5
8.1 General . 5
8.2 Full-section compressive strength . 6
8.3 Strain . 6
8.4 Full-section compressive modulus . 6
8.4.1 General . 6
8.4.2 Chord slope . 6
8.4.3 Regression slope . 6
8.5 Failure mode . 7
9 Test report . 7
Annex A (informative) Calculation method of slenderness ratio and width-thickness ratio .9
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ISO 23930:2023(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
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ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
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on the ISO list of patent declarations received (see www.iso.org/patents).
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www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 13,
Composites and reinforcement fibres.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.
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ISO 23930:2023(E)
Introduction
Previous attempts to determine compressive properties of pultruded FRP have been hampered by
experimental difficulty of clamping and different boundary conditions between test specimen and
actual specimen.
The procedure presented in this document uses the full-section compressive test to determine the
compressive properties of pultruded FRP. This test is convenient and able to evaluate the mechanical
properties of the full-section. The result of this test, despite being lower than that of the coupon test,
can better represent the properties across the full-section and thus, is recommended to be used in the
strength design of pultruded FRP compressive members.
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INTERNATIONAL STANDARD ISO 23930:2023(E)
Fibre-reinforced plastic composites — Full-section
compressive test for pultruded profiles
1 Scope
This document specifies a method for determining the compressive properties in the pultruded fibre
reinforced plastic (FRP) using full-section compressive tests.
It is applicable to pultruded FRP profiles. The scope is not limited to types of fibres and resins.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 291, Plastics — Standard atmospheres for conditioning and testing
ISO 7500-1, Metallic materials — Calibration and verification of static uniaxial testing machines — Part 1:
Tension/compression testing machines — Calibration and verification of the force-measuring system
ISO 9513, Metallic materials — Calibration of extensometer systems used in uniaxial testing
ISO 16012, Plastics — Determination of linear dimensions of test specimens
ISO 21920-2, Geometrical product specifications (GPS) — Surface texture: Profile — Part 2 Terms,
definitions and surface texture parameters
3 Terms and definitions
For t
...