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Tensile test fixture for plastics

Tensile test fixture for plastics

ASTM D638, plastic vice tensile grip

Tensile test fixture for plastics is based on the test standatd ASTM D638, determination of the tensile properties of unreinforced and reinforced plastics in the form of standard dumbbell-shaped test specimens when tested under defined conditions of pretreatment, temperature, humidity, and testing machine speed.

This test method is applicable for testing materials of any thickness up to 14 mm (0.55 in.). However, for testing specimens in the form of thin sheeting, including film less than 1.0 mm (0.04 in.) in thickness, ASTM standard D882 is the preferred test method. Materials with a thickness greater than 14 mm (0.55 in.) shall be reduced by machining.




General introduction

Tensile test fixture for plastics is based on the test standatd ASTM D638, determination of the tensile properties of unreinforced and reinforced plastics in the form of standard dumbbell-shaped test specimens when tested under defined conditions of pretreatment, temperature, humidity, and testing machine speed.

This test method is applicable for testing materials of any thickness up to 14 mm (0.55 in.). However, for testing specimens in the form of thin sheeting, including film less than 1.0 mm (0.04 in.) in thickness, ASTM standard D882 is the preferred test method. Materials with a thickness greater than 14 mm (0.55 in.) shall be reduced by machining.

Opening: 0 – 15 mm (depending on jaws)

Weight: 2.2 kg per pair of grips without jaws

Clamping force: 10 kN at 15 Nm torque


Main features

  • Feature

Simple and effective method to hold specimens; 

Dual acting design, also for asymmetrical samples
Jaws articulate and provide a self-aligning and self-tightening effect.

Specification

ModelMax. loadDimensions (mm)WeightConnectionsizeClamping widthClampingLength
55KNA: 130 B: 104 C:401.3kgM1240/60/10045
1010KNA: 190 B: 120 C:604.2kgM1640/60/10050
ModelMaterialFlat clamping rangeVee clamping rangeWorking temp.(℃)
545# steel0-10/10-204-10/10-18-70~250
1045# steel0-10/10-20/20-264-10/10-18-70~250


Standard

ISO 527-3 Tensile Test on Plastic Film

ISO 527-3 Plastics - TENSILE PROPERTIES - PART 3: FOR FILMS AND SHEETS

ISO 527-3 specifies the test conditions for determining the tensile properties of plastic films and sheets with a thickness less than 1 mm, based on the general principles of ISO 527-1. Provides standardized procedures to measure critical mechanical parameters including tensile strength, yield strength, elongation at break, and Young's modulus for thin plastic materials. It is critically important because thin films behave very differently under stress compared to rigid plastics; they are more prone to tearing, slipping, and deformation. By standardizing the test conditions, this document ensures that material specifications, quality control, and research data are globally comparable and reliable.  Specimen created following ISO 527-3 can be used to determine the tensile properties of thin plastic sheets and films including the tensile modulus of elasticity and the tensile energy to break (TEB).

ISO 527-1, ISO 527-2 Tensile Test of Plastics Composites & plastics

ISO 527-1 covers the test procedures for determining tensile properties of plastics and plastic composites. Tensile properties of plastics that are determined through the practices of ISO 527-1 include tensile strength, tensile modulus and other properties related to stress strain characteristics of plastic materials. 

ISO 527-2 specifies the test conditions for determining the tensile properties of moulding and extrusion plastics, based upon the general principles given in ISO 527-1. The methods described in ISO 527-2 are selectively suitable for use with the following range of materials: rigid and semi-rigid thermoplastics moulding, extrusion and cast materials, including compounds filled and reinforced by, for example, short fibres, small rods, plates or granules but excluding textile fibres (see ISO 527-4 and ISO 527-5).

ISO 527-4, ISO 527-5 Tensile Test on fibre-reinforced Composites

ISO 527-4 and ISO 527-5 are two key standards within the ISO 527 series for determining the tensile properties of fibre-reinforced plastic composites. 

ISO 527-4 covers the general principles and tests for isotropic and orthotropic materials. ISO 527-5 provides specific procedures for testing unidirectional fiber-reinforced composites.


These standards are critically important because they provide a unified, reliable method to measure fundamental mechanical properties (like tensile strength, modulus, and strain) which are essential for material selection, quality control, structural design, and R&D in aerospace, automotive, wind energy, and sports equipment industries.


ASTM D638 Tensile Testing for Plastics

ASTM D638 determining the tensile properties of unreinforced and reinforced plastics using dumbbell-shaped (dogbone) specimens tested under closely controlled conditions of conditioning, temperature, humidity, and crosshead speed. For measuring the tensile mechanical properties of unreinforced and reinforced plastics, including thermoplastics, thermosets, molded plastics, and plastic composites.

ASTM D882 Tensile test of Thin Plastic Sheeting

ASTM D882: Standard Test Method for Tensile Properties of Thin Plastic Sheeting

ASTM D882 designed to measure tensile mechanical properties including ultimate tensile strength, yield strength, elongation, tensile energy to break and tensile modulus of elasticity of thin plastic films and sheeting with thickness below 1.0 mm (0.04 in.) It covers full testing workflows including specimen preparation, conditioning, equipment configuration, tension loading, data recording, mathematical calculation, and result reporting for flexible thin plastic substrates. The samples are cut in strips that minimally have to be eight times longer than wide. No dumbbell shape is cut for materials of that thickness. Cut samples need to be free of nicks and other cutting defects since they will have an important impact on the test results variation. 

ISO 4587 Adhesives Tensile Shear Test of rigid bond material

ISO 4587 Adhesives — Determination of tensile lap-shear strength of rigid-to-rigid bonded assemblies

ISO 4587 determining tensile lap-shear strength of adhesive single-lap joints between two rigid substrates, for comparative evaluation rather than structural engineering design data. UnitedTest manufactures high-precision ISO 4587 compliant lap-shear test machines, designed to evaluate the tensile shear performance of rigid-to-rigid adhesive bonded assemblies for industrial quality control and adhesive material comparison. 

ASTM D1002 Lap Shear Test of Adhesively Bonded Metal Specimens

ASTM D1002 is the most widely used standard test for measuring the apparent shear strength of metal‑to‑metal adhesive single‑lap joints under tension loading. It provides comparative data for adhesive selection, process control, and quality assurance in structural bonding applications. It is the most common test for evaluating adhesive shear performance.

ISO 9664 Shear Fatigue Testing of Adhesives

ISO 9664 – Adhesives – Test methods for fatigue properties of structural adhesives in tensile shear

ISO 9664 defines standardized cyclic tensile-shear fatigue testing procedures to evaluate the fatigue strength of structural adhesives bonded on metal substrates. Critical caveat: test results are joint-system dependent (affected by specimen geometry) and cannot be directly used for structural design calculations, only for material comparative characterization. 

ISO 1924 Test of Tensile Properties of Paper and Board (Tensile Tester)

ISO 1924 Paper and board - Determination of tensile properties 

Part 2: Constant rate of elongation method (20 mm/min)

Part 3: Constant rate of elongation method (100 mm/min)


ISO 1924 defines uniform laboratory methods to quantify mechanical tensile performance of paper and paperboard, eliminating inconsistent test data across global paper mills, converters and laboratories.  

ASTM D5868 Test Method for Lap Shear Adhesion for FRP Bonding

ASTM D5868 Standard Test Method for Lap Shear Adhesion for Fiber Reinforced Plastic (FRP) Bonding

ASTM D5868 quantify the adhesive bonding performance of Fiber Reinforced Plastic (FRP) substrates. It fills the gap of composite bonding testing left by metal-only and rigid plastic lap shear standards, supporting both FRP-to-FRP and FRP-to-metal bonded joints, and works for randomly distributed fiber and oriented fiber FRP materials. Its core value is generating comparative apparent shear strength data to screen adhesives, optimize FRP surface pretreatment, and compare bonding process performance.

ASTM D3165 Single-Lap Shear Test for Laminated Assemblies

ASTM D3165 Standard Test Method for Strength Properties of Adhesives in Shear by Tension Loading of Single-Lap-Joint Laminated Assemblies

ASTM D3165 evaluates the comparative apparent shear strength of adhesives in large-area single-lap laminated bonded assemblies. Unlike small lab coupons (ASTM D1002), it uses large master bonded panels cut into multiple test strips to mimic full-size production laminated joints, accounting for real-world variables like adhesive flow, cure constraints, and volatile release that small specimens cannot replicate. Supports both metal and plastic adherends with modified preparation for plastics.  

ASTM D3528 Adhesive Joints Double Lap Shear Test by Tension Loading

ASTM D3528 — Standard Test Method for Strength Properties of Double Lap Shear Adhesive Joints by Tension Loading

ASTM D3528 defines a double-lap shear test method to measure the tensile shear strength of structural adhesives bonding metal substrates. Its defining advantage over single-lap shear tests (ASTM D1002, D3165) is the essentially peel-free symmetric double-lap geometry that produces adhesive stress distribution representative of real low-peel production-type structural joints.

EN 1465 Tensile Lap-Shear Test of Bonded Assemblies

EN 1465 Adhesives — Determination of tensile lap-shear strength of bonded assemblies

EN 1465 specifies a method for determining the tensile lap-shear strength of bonded assemblies when tested on a standard specimen and under specified conditions of preparation and testing.EN 1465 provides a comparative, quality-control measure — not a design allowable.It aligns closely with ISO 4587 single lap shear, with matching geometry and a fixed failure time window of 65 ±20 seconds. 

ISO 11003-2 Thick-Adherend Tensile Shear Test for Structural Adhesives

ISO 11003-2 Adhesives – Determination of shear behaviour of structural adhesives – Part 2: Tensile test method using thick adherends.

ISO 11003-2 determining the shear behaviour of structural adhesives in a single-lap bonded joint subjected to tensile loading. The unique feature is the use of thick, rigid metal adherends with a very short overlap length to achieve the most uniform shear stress distribution possible in the adhesive layer and minimize peel stresses and other secondary stress states that initiate premature failure. 

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