GB/T 48123-2026Rubber,vulcanized or thermoplastic - Determination of equibiaxial tensile stress-strain properties (English PDF)

GB/T 48123-2026 is the English-translated version of 硫化橡胶或热塑性橡胶 等双轴拉伸应力应变性能的测定.

Rubber components in seals, membranes, tyres and hoses are often loaded in more than one direction, and equibiaxial tension is one way of characterising such behaviour. This document covers the determination of equibiaxial tensile stress-strain properties of vulcanized or thermoplastic rubber, giving laboratories a defined test method.

Users include rubber compounders, material suppliers, product designers who need stress-strain data for analysis, and testing laboratories in the rubber, automotive and polymer industries. Researchers who build material models for simulation may also draw on data produced by this type of method. It is a recommended national standard, so it is voluntary unless required by contract or rule. It was issued on 28 August 2026 and takes effect on 1 March 2027. It is an original Chinese document and does not adopt an international standard. Uniaxial tests alone do not describe how rubber behaves under multi-directional strain, so equibiaxial data are a useful complement.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 17 pages — is available in the English PDF.

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