Home >> Products >> Test Fixtures >> Compression >> compression test fixture
compression test fixture

compression test fixture

ISO 604, ASTM D695

In-Plane Compressive test fixture of Fiber-Reinforced Plastic Composites conform with ISO 14126 test standard, determining the in-plane compression strength properties of fiber-reinforced plastic composites. 

UnitedTest Supply the suitable testing machine and ISO 14126 In-Plane Compressive test fixture. 

This standard describes two different methods for evaluating performance:
Method 1: Provide the shear load of the specimen
Method 2: Provide end loading or mixed loading of the sample

General introduction

Compression test fixture is used to investigate the compressive behaviour of the test specimens and for determining the compressive strength, compressive modulus and other aspects of the compressive stress/strain relationship under the conditions defined.


ISO 604 – Determination of Compressive Properties of Plastics
ISO 604 specifies a method for determining the compressive properties of plastics under defined conditions.

The method applies to the following range of materials:
Rigid and semi-rigid thermoplastic moulding and extrusion materials, including compounds filled and reinforced by e.g. short fibres, small rods, plates or granules.

Compression fixture Diameter:100mm, 120mm. 
Prefered sample size: 
1, for compression strength: 10mm lenth, 10mm width, 4mm thickness. 
2, for compression modulus test: 50mm lenth, 10mm width, 4mm thickness. 
compression test fixture

UnitedTest Offer compression testing machine and compression test fixture for ISO 604 plastic sample. 


in addition to unfilled types; rigid and semi-rigid thermoplastic sheet;

Rigid and semi-rigid thermoset moulding materials, including filled and reinforced compounds; rigid and semirigid thermoset sheet;

Thermotropic liquid-crystal polymers.


For ISO 604, typical test blocks are are 50 x 10 x 4mm for modulus and 10 x 10 x 4mm for strength.

The specimen is placed between compressive plates parallel to the specimen surface.

The specimen is then compressed at a constant rate

The maximum load is recorded along with stress-strain data.


ISO 604 An extensometer attached to the fixture is used to determine the modulus of elasticity.

When performing compression testing, it has been found that specimen alignment plays an important role in achieving even load distribution, which contributes

to the consistency of the results.

The ISO 604 standard is technically equivalent to the ASTM D695 Standard.

Specification

Compression fixture Diameter:100mm, 120mm. 


Prefered sample size: 

1, for compression strength: 10mm lenth, 10mm width, 4mm thickness. 

2, for compression modulus test: 50mm lenth, 10mm width, 4mm thickness. 

Standard

ISO 604 Compressive Strength Testing of Plastics –

ISO 604 specifies a method for determining the compressive properties of plastics under defined conditions. It is used to investigate the compressive behavior of test specimens and to determine key mechanical properties such as compressive strength, compressive modulus, and other aspects of the compressive stress/strain relationship. Specimen length is adjusted to avoid buckling that would distort results. 

ASTM D695 Plastic & composites Compressive Testing –

ASTM D695: Standard Test Method for Compressive Properties of Rigid Plastics

ASTM D695 test covers the determination of the mechanical properties of unreinforced and reinforced rigid plastics, including high-modulus composites, when loaded in compression at relatively low uniform rates of straining or loading. Test specimens of standard shape are employed. This procedure is applicable for a composite modulus up to and including 41,370 MPa (6,000,000 psi). It is technically equivalent to ISO 604 Plastics‑Determination of Compressive Properties. This test applies end‑loading compression on standard‑geometry specimens under controlled environmental and displacement‑rate conditions, delivering compressive strength, yield strength, offset yield strength, compressive elastic modulus, and compressive deformation data.


ISO 844 Rigid Cellular Plastics Compression Test –

ISO 844 Rigid cellular plastics — Determination of compression properties. 

ISO 844 unified test methods to measure core compressive mechanical properties of rigid closed/open-cell foam plastics, eliminating inconsistent test data across laboratories and enabling global material comparison. Can obtain four key compressive indicators: compressive strength, corresponding relative deformation, compressive stress at 10% nominal deformation, and compressive elastic modulus.  

ISO 19862 Sealant Cyclic Extension-Compression Durability Test –

ISO 19862 Buildings and civil engineering works — Sealants — Durability to extension‑compression cycling under accelerated weathering

ISO 19862 define test for classifying the long‑term durability of sealants used in exterior building joints. It combines mechanical joint movement (compression then extension) with accelerated weathering (light, heat, water, humidity) to see how many weekly cycles a sealant survives before adhesive/cohesive failure occurs.


ASTM C719 Elastomeric Joint Sealant Adhesion/Cohesion Test (Hockman Cycle Test) –

ASTM C719 Elastomeric Joint Sealant Adhesion/Cohesion Test (Hockman Cycle Test)  ASTM C719‑22 Hockman Cycle Tester | Elastomeric Sealant Cyclic Movement Test Machine | UnitedTest


ASTM C719: Standard Test Method for Adhesion and Cohesion of Elastomeric Joint Sealants Under Cyclic Movement (Hockman Cycle).

ASTM C719 is an accelerated laboratory procedure used to evaluate building sealants in a joint assembly subjected to water immersion, cyclic extension/compression, and temperature change. It is widely used for elastomeric construction sealants that must perform in moving building joints.



ASTM E9 Metallic Compression Test –

ASTM E9 Standard Test Methods of Compression Testing of Metallic Materials at Room Temperature

ASTM E9 defines axial‑force uniaxial compression test procedures for metallic materials under room‑temperature conditions. It specifies apparatus, specimen design, operation steps, calculation rules and reporting requirements, with special mandatory for cemented‑carbide testing.

ASTM D5528 Mode-I Interlaminar Fracture Toughness DCB Test –

ASTM D5528 Standard Test Method for Mode I Interlaminar Fracture Toughness of Unidirectional Fiber-Reinforced Polymer Matrix Composites

ASTM D5528 is standard test method for Mode‑I (opening‑mode) interlaminar fracture toughness GIc of unidirectional fiber‑reinforced polymer‑matrix composite laminates, using Double Cantilever Beam (DCB) specimens. It quantifies the critical strain‑energy release rate for delamination initiation and growth between composite plies.


ISO 15024 DCB Mode I Interlaminar Fracture Toughness (GIC) Testing of Fibre-reinforced plastic composites –

ISO 15024 Fibre-reinforced plastic composites. Determination of mode I interlaminar fracture toughness, GIC, for unidirectionally reinforced materials

ISO 15024 specifies the double‑cantilever‑beam (DCB) test for measuring Mode‑I interlaminar fracture toughness GIC (critical energy release rate, unit: J/m²), which quantifies material resistance to opening‑mode delamination crack initiation and growth between composite plies. 

Require More Customized Solutions?

We offer customization to meet your specific needs. Our expert team will collaborate with you to develop the perfect product for you
Customize Now

Beijing United Test Co., Ltd.