SIST EN ISO 26203-1:2026 PDF

Name: SIST EN ISO 26203-1:2026 — Metallic materials - Tensile testing at high strain rates - Part 1: Elastic-bar-type systems (ISO 26203-1:2025)
SKU: SIST EN ISO 26203-1:2026
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Metallic materials - Tensile testing at high strain rates - Part 1: Elastic-bar-type systems (ISO 26203-1:2025)

Название (английский):

SIST EN ISO 26203-1:2026

Metallic materials - Tensile testing at high strain rates - Part 1: Elastic-bar-type systems (ISO 26203-1:2025)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 38
Дата публикации:: 8 апреля 2026 г.
Издание:: ISO 26203-1:2025
ICS:: 77.040.10

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Описание (английский):

This document specifies guidelines for testing metallic sheet materials to determine the stress-strain characteristics at high strain rates. This document covers the use of elastic-bar-type systems. This test method covers the strain-rate range above 102 s−1. NOTE This testing method is also applicable to tensile test-piece geometries other than the flat test pieces considered here.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

SIST EN ISO 26203-1:2026, titled Metallic materials - Tensile testing at high strain rates - Part 1: Elastic-bar-type systems (ISO 26203-1:2025), specifies methods for determining the stress-strain characteristics of metallic sheet materials when subjected to high strain rates. Developed under the guidance of the Slovenian Institute for Standardization (SIST) and aligned with international and European standards, this document provides comprehensive guidelines for the use of elastic-bar-type systems for tensile testing at strain rates higher than 10² s−1.

This standard is especially relevant in industries where the dynamic behavior of metals is critical, such as automotive crash analysis and materials development for structural safety. It encompasses the configuration of test systems, requirements for test pieces, measurement techniques, and essential calibration procedures tailored to high strain-rate conditions.

Key Topics

Elastic-bar-type Testing Systems: The standard covers the use of long elastic bars as force-measuring devices, minimizing the effects of wave reflections and ensuring accurate data at high strain rates. Examples include the split Hopkinson bar (SHB) and one-bar methods.

Test Piece Requirements: Guidelines on the geometry, dimensions, and preparation of test pieces are provided to ensure consistency and reliable force equilibrium during dynamic testing. Both type-A and type-B configurations are discussed.

Measurement and Instrumentation:

Force Measurement: Utilizes strain gauges with short gauge lengths, strategically placed to avoid end effects and wave interference.
Displacement Measurement: Recommends non-contact techniques such as lasers and high-speed optical devices, essential for capturing rapid deformations with minimal inertia errors.
Data Acquisition: Specifies requirements for amplifiers, oscilloscopes, and digital recorders with high-frequency response to accurately capture transient events.

Calibration Procedures: Outlines the methods for validating strain gauges and other instruments, ensuring traceability and accuracy of test data.

Strain Rate Range: Focuses on tests where the mean engineering strain rate exceeds 100 s−1, making the methods suitable for applications that simulate real-world dynamic loading conditions.

Applications

The standard offers significant practical value in areas where the dynamic mechanical properties of metallic materials are vital:

Automotive Safety Engineering: Stress-strain data at high strain rates are fundamental for vehicle crashworthiness assessment, informing both experimental and simulation-based design.

Structural Design and Material Selection: Engineers use the high strain rate characterization provided by this standard to select appropriate metals for components exposed to impact, explosion, or crash scenarios.

Research and Development: Laboratories and research institutes apply the standard to compare new alloys, validate finite element analysis (FEA) models, and improve predictive accuracy for material behavior in dynamic environments.

Quality Assurance and Compliance: Manufacturers leverage standardized testing protocols to demonstrate compliance with industry regulations and ensure consistent material performance across production batches.

Related Standards

ISO 26203-2: Addresses high strain-rate tensile testing using servo-hydraulic and other types of systems.

ISO 6892-1: Details conventional quasi-static tensile testing procedures for metallic materials.

ISO 7500-1: Describes calibration and verification of static uniaxial testing machines.

By adhering to the procedures outlined in SIST EN ISO 26203-1:2026, organizations ensure the reliability and repeatability of high strain rate tensile testing, supporting innovation and safety in the design and application of metallic materials. This standard is an essential reference for anyone engaged in mechanical testing of metals, especially under conditions mimicking real-world dynamic loads.

SIST EN ISO 26203-1:2026 PDF

Abstract

Похожие стандарты

Overview

Key Topics

Applications

Related Standards

Технические детали

ISO 26203-1:2025

Metallic materials — Tensile testing at high strain rates — Part 1: Elastic-bar-type systems

SIST EN ISO 26203-2:2012

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SIST EN ISO 6892-1:2020

Metallic materials - Tensile testing - Part 1: Method of test at room temperature (ISO 6892-1:2019)

SIST EN ISO 7500-1:2018

Metallic materials - Calibration and verification of static uniaxial testing machines - Part 1: Tension/compr…