ISO 23930:2023 PDF

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

Open preview (PDF)

Title (English):

ISO 23930:2023

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

Document status:: Active
Format:: Electronic (PDF)
Number of pages:: 9
Publication date:: January 31, 2023
Edition:: ISO IS 23930 edition 1 version 1
ICS:: 83.120

Delivery type:

Full version25 €Read online 24h10 €Read online 72h15 €

Document language:

enru

Delivery time:Immediate download

Price:25 €

Description (English):

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.

Technical details

Technical committee: ISO/TC 61/SC 13 - Composites and reinforcement fibres
SKU: ISO 23930:2023

Abstract

Overview - ISO 23930:2023 (pultruded FRP compressive test)

ISO 23930:2023 specifies a standardized full‑section compressive test to determine compressive properties of pultruded fibre‑reinforced plastic (FRP) profiles. The method is applicable to pultruded FRP regardless of fibre or resin type and is intended to evaluate the mechanical behaviour of the complete cross‑section (rather than only coupons). The standard notes that full‑section results are often lower than coupon tests but better represent real member performance and are therefore recommended for strength design of pultruded FRP compressive members.

Key topics and technical requirements

Test principle: Uniaxial compression of the full pultruded profile section using a universal test machine; stress from applied force, strain from gauges/extensometers.
Apparatus: Test machine compliant with ISO 7500‑1 and ISO 9513; force measurement Class 1. Parallel, well‑guided compression platens at least 5 mm larger than specimen; platen hardness ≥ 700 HV 0,2; surface roughness ≤ 6.3 µm (ISO 21920‑2).
Strain measurement: Use strain gauges (grid length > 3 mm; k‑factor accuracy ≤ 1%). Gauges positioned according to cross‑section.
Specimen geometry & limits: Cross‑sections include I, C, L, rectangular, circular, etc. Slenderness ratio < 3; width‑to‑thickness limits (free side plates < 5; plates without free edges < 8; non‑double symmetrical sections < 5). End platens contact faces must be parallel (parallelism error < 0.5 mm).
Specimen prep & sampling: Minimum 3 specimens (5 recommended). Ends may be reinforced with bonded metal plates (reinforcement length < 1/3 specimen length). Use cutting methods that do not alter material properties (diamond blade, water jet).
Conditioning & atmosphere: Follow ISO 291 Class 2; preferred (23 ± 2) °C, (50 ± 10) % RH; record temperature and humidity.
Test speed & measurements: Compression speed v = 0.1 × h (mm/min) where h = specimen length. Dimensional accuracy per ISO 16012 (±0.1 mm for >10 mm; ±0.01 mm for ≤10 mm).
Results & calculations: Full‑section compressive strength σc = Fc / A. Compressive modulus can be calculated by chord slope (e.g., between 0.05% and 0.25% strain) or regression slope. Record failure mode.

Applications - practical use of the standard

Structural design and verification of pultruded FRP members (beams, columns, profiles) where full‑section behaviour is critical.
Product development, quality control and material specification for pultrusion manufacturers.
Performance comparison for different pultruded profile geometries, fibre/resin systems and manufacturing processes.
Use in codes and component design where representative full‑section compressive properties are required.

Who should use this standard

Pultrusion manufacturers, composite material engineers, structural designers, testing laboratories, and standards committees involved in FRP design and certification.

Related standards

ISO 291 (conditioning), ISO 7500‑1 (test machine calibration), ISO 9513 (extensometer calibration), ISO 16012 (dimensional measurement), ISO 21920‑2 (surface texture).

Related standards

Standards mentioned in the description

Abstract

Overview - ISO 23930:2023 (pultruded FRP compressive test)

Key topics and technical requirements

Test principle: Uniaxial compression of the full pultruded profile section using a universal test machine; stress from applied force, strain from gauges/extensometers.
Apparatus: Test machine compliant with ISO 7500‑1 and ISO 9513; force measurement Class 1. Parallel, well‑guided compression platens at least 5 mm larger than specimen; platen hardness ≥ 700 HV 0,2; surface roughness ≤ 6.3 µm (ISO 21920‑2).
Strain measurement: Use strain gauges (grid length > 3 mm; k‑factor accuracy ≤ 1%). Gauges positioned according to cross‑section.
Specimen geometry & limits: Cross‑sections include I, C, L, rectangular, circular, etc. Slenderness ratio < 3; width‑to‑thickness limits (free side plates < 5; plates without free edges < 8; non‑double symmetrical sections < 5). End platens contact faces must be parallel (parallelism error < 0.5 mm).
Specimen prep & sampling: Minimum 3 specimens (5 recommended). Ends may be reinforced with bonded metal plates (reinforcement length < 1/3 specimen length). Use cutting methods that do not alter material properties (diamond blade, water jet).
Conditioning & atmosphere: Follow ISO 291 Class 2; preferred (23 ± 2) °C, (50 ± 10) % RH; record temperature and humidity.
Test speed & measurements: Compression speed v = 0.1 × h (mm/min) where h = specimen length. Dimensional accuracy per ISO 16012 (±0.1 mm for >10 mm; ±0.01 mm for ≤10 mm).
Results & calculations: Full‑section compressive strength σc = Fc / A. Compressive modulus can be calculated by chord slope (e.g., between 0.05% and 0.25% strain) or regression slope. Record failure mode.

Applications - practical use of the standard

Structural design and verification of pultruded FRP members (beams, columns, profiles) where full‑section behaviour is critical.
Product development, quality control and material specification for pultrusion manufacturers.
Performance comparison for different pultruded profile geometries, fibre/resin systems and manufacturing processes.
Use in codes and component design where representative full‑section compressive properties are required.

Who should use this standard

Pultrusion manufacturers, composite material engineers, structural designers, testing laboratories, and standards committees involved in FRP design and certification.

Related standards

ISO 291 (conditioning), ISO 7500‑1 (test machine calibration), ISO 9513 (extensometer calibration), ISO 16012 (dimensional measurement), ISO 21920‑2 (surface texture).

ISO 23930:2023 PDF

Technical details

Abstract

Overview - ISO 23930:2023 (pultruded FRP compressive test)

Key topics and technical requirements

Applications - practical use of the standard

Who should use this standard

Related standards

Related standards

Abstract

Overview - ISO 23930:2023 (pultruded FRP compressive test)

Key topics and technical requirements

Applications - practical use of the standard

Who should use this standard

Related standards

Related standards

Metallic materials — Verification of static uniaxial testing machines — Part 1: Tension/compression testing m…

Metallic materials - Calibration of extensometer systems used in uniaxial testing - Technical Corrigendum 1 (…

Geometrical product specifications (GPS) - Surface texture: Profile - Part 2: Terms, definitions and surface…

Radiological protection - Sealed radioactive sources - General requirements and classification (ISO 2919:2012)

Plastics - Determination of linear dimensions of test specimens (ISO 16012:2015)